Articles | Volume 18, issue 16
https://doi.org/10.5194/acp-18-11793-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-18-11793-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Aug 2018
Research article |
| 20 Aug 2018
| 20 Aug 2018
First long-term and near real-time measurement of trace elements in China's urban atmosphere: temporal variability, source apportionment and precipitation effect
Yunhua Chang
Yale-NUIST Center on Atmospheric Environment, International Joint
Laboratory on Climate and Environment Change (ILCEC), Nanjing University of
Information Science & Technology, Nanjing 210044, China
Key Laboratory of Meteorological Disaster, Ministry of Education
(KLME)/ Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disasters (CIC-FEMD), Nanjing University of Information
Science & Technology, Nanjing 210044, China
Jiangsu Provincial Key Laboratory of Agricultural Meteorology, College
of Applied Meteorology, Nanjing University of Information Science &
Technology, Nanjing 210044, China
Kan Huang
Center for Atmospheric Chemistry Study, Shanghai Key Laboratory of
Atmospheric Particle Pollution and Prevention (LAP), Department of
Environmental Science and Engineering, Fudan University, Shanghai 200433,
China
Mingjie Xie
School of Environmental Science and Engineering, Nanjing University of
Information Science & Technology, Nanjing 210044, China
Congrui Deng
Center for Atmospheric Chemistry Study, Shanghai Key Laboratory of
Atmospheric Particle Pollution and Prevention (LAP), Department of
Environmental Science and Engineering, Fudan University, Shanghai 200433,
China
Zhong Zou
Center for Atmospheric Chemistry Study, Shanghai Key Laboratory of
Atmospheric Particle Pollution and Prevention (LAP), Department of
Environmental Science and Engineering, Fudan University, Shanghai 200433,
China
Pudong New Area Environmental Monitoring Station, Shanghai 200135,
China
Shoudong Liu
Yale-NUIST Center on Atmospheric Environment, International Joint
Laboratory on Climate and Environment Change (ILCEC), Nanjing University of
Information Science & Technology, Nanjing 210044, China
Key Laboratory of Meteorological Disaster, Ministry of Education
(KLME)/ Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disasters (CIC-FEMD), Nanjing University of Information
Science & Technology, Nanjing 210044, China
Jiangsu Provincial Key Laboratory of Agricultural Meteorology, College
of Applied Meteorology, Nanjing University of Information Science &
Technology, Nanjing 210044, China
Yanlin Zhang
CORRESPONDING AUTHOR
Yale-NUIST Center on Atmospheric Environment, International Joint
Laboratory on Climate and Environment Change (ILCEC), Nanjing University of
Information Science & Technology, Nanjing 210044, China
Key Laboratory of Meteorological Disaster, Ministry of Education
(KLME)/ Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disasters (CIC-FEMD), Nanjing University of Information
Science & Technology, Nanjing 210044, China
Jiangsu Provincial Key Laboratory of Agricultural Meteorology, College
of Applied Meteorology, Nanjing University of Information Science &
Technology, Nanjing 210044, China
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Tong Sha, Xiaoyan Ma, Jun Wang, Rong Tian, Jianqi Zhao, Fang Cao, and Yan-Lin Zhang
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Preprint withdrawn
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Jiani Tan, Joshua S. Fu, Gregory R. Carmichael, Syuichi Itahashi, Zhining Tao, Kan Huang, Xinyi Dong, Kazuyo Yamaji, Tatsuya Nagashima, Xuemei Wang, Yiming Liu, Hyo-Jung Lee, Chuan-Yao Lin, Baozhu Ge, Mizuo Kajino, Jia Zhu, Meigen Zhang, Hong Liao, and Zifa Wang
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Jian Xu, Jia Chen, Na Zhao, Guochen Wang, Guangyuan Yu, Hao Li, Juntao Huo, Yanfen Lin, Qingyan Fu, Hongyu Guo, Congrui Deng, Shan-Hu Lee, Jianmin Chen, and Kan Huang
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Yu-Chi Lin, Yan-Lin Zhang, Mei-Yi Fan, and Mengying Bao
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Meng Gao, Zhiwei Han, Zhining Tao, Jiawei Li, Jeong-Eon Kang, Kan Huang, Xinyi Dong, Bingliang Zhuang, Shu Li, Baozhu Ge, Qizhong Wu, Hyo-Jung Lee, Cheol-Hee Kim, Joshua S. Fu, Tijian Wang, Mian Chin, Meng Li, Jung-Hun Woo, Qiang Zhang, Yafang Cheng, Zifa Wang, and Gregory R. Carmichael
Atmos. Chem. Phys., 20, 1147–1161, https://doi.org/10.5194/acp-20-1147-2020, https://doi.org/10.5194/acp-20-1147-2020, 2020
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Topic 3 of the Model Inter-Comparison Study for Asia (MICS-Asia) Phase III examines how online coupled air quality models perform in simulating high aerosol pollution in the North China Plain region during wintertime haze events and evaluates the importance of aerosol radiative feedbacks. This paper discusses the estimates of aerosol radiative forcing, aerosol feedbacks, and possible causes for the differences among the models.
Jun Zhu, Xiangao Xia, Huizheng Che, Jun Wang, Zhiyuan Cong, Tianliang Zhao, Shichang Kang, Xuelei Zhang, Xingna Yu, and Yanlin Zhang
Atmos. Chem. Phys., 19, 14637–14656, https://doi.org/10.5194/acp-19-14637-2019, https://doi.org/10.5194/acp-19-14637-2019, 2019
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The long-term temporal–spatial variations of the aerosol optical properties over the Tibetan Plateau (TP) based on the multiple ground-based sun photometer sites and the MODIS product are presented. Besides, the aerosol pollution and aerosol transport processes over the TP are also analyzed by the observations and models. The results in this region could help reduce the assessment uncertainties of aerosol radiative forcing and provide more information on aerosol transportation.
Yunhua Chang, Yan-Lin Zhang, Jiarong Li, Chongguo Tian, Linlin Song, Xiaoyao Zhai, Wenqi Zhang, Tong Huang, Yu-Chi Lin, Chao Zhu, Yunting Fang, Moritz F. Lehmann, and Jianmin Chen
Atmos. Chem. Phys., 19, 12221–12234, https://doi.org/10.5194/acp-19-12221-2019, https://doi.org/10.5194/acp-19-12221-2019, 2019
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The present work underscores the value of cloud water dissolved inorganic nitrogen isotopes as carriers of quantitative information on regional NOx and NH3 emissions. It sheds light on the origin and production pathways of nitrogenous species in clouds and emphasizes the importance of biomass-burning-derived nitrogenous species as cloud condensation nuclei in China’s troposphere. Moreover, it highlights the rapid evolution of NOx emissions in China.
Xiaoyan Liu, Yan-Lin Zhang, Yiran Peng, Lulu Xu, Chunmao Zhu, Fang Cao, Xiaoyao Zhai, M. Mozammel Haque, Chi Yang, Yunhua Chang, Tong Huang, Zufei Xu, Mengying Bao, Wenqi Zhang, Meiyi Fan, and Xuhui Lee
Atmos. Chem. Phys., 19, 11213–11233, https://doi.org/10.5194/acp-19-11213-2019, https://doi.org/10.5194/acp-19-11213-2019, 2019
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Although a total ban on straw burning has been enforced in eastern China, the regionally transported biomass burning emissions remarkably impacted the chemical and optical properties of carbonaceous aerosols in Nanjing, which were quantified by a calculation based on measured data and a simulation based on a model. Results showed that regionally transported biomass burning emissions significantly contributed to the carbonaceous aerosols and impacted the solar radiation balance of the atmosphere.
Wenqi Zhang, Yan-Lin Zhang, Fang Cao, Yankun Xiang, Yuanyuan Zhang, Mengying Bao, Xiaoyan Liu, and Yu-Chi Lin
Atmos. Chem. Phys., 19, 11071–11087, https://doi.org/10.5194/acp-19-11071-2019, https://doi.org/10.5194/acp-19-11071-2019, 2019
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A novel method to determine the concentration and the isotopes of WSOC in aerosols is established and applied in the analysis of a severe haze in eastern China. The results show that the studied site is affected by the photochemical aging, biomass burning and dust aerosols in different episodes during the sampling period. The analysis of WSOC and its isotopes offers a great potential to better understand the source emission, the atmospheric aging and the secondary production of WSOC.
Rui Li, Lulu Cui, Yilong Zhao, Ziyu Zhang, Tianming Sun, Junlin Li, Wenhui Zhou, Ya Meng, Kan Huang, and Hongbo Fu
Atmos. Chem. Phys., 19, 11043–11070, https://doi.org/10.5194/acp-19-11043-2019, https://doi.org/10.5194/acp-19-11043-2019, 2019
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Acid deposition is still an important environmental issue in China. Rainwater samples in 320 cities in China were collected to determine the acidic ion concentrations and identify their spatiotemporal variations and sources. The higher acidic ions showed higher concentrations in winter. Furthermore, the highest acidic ion concentrations were mainly distributed in YRD and SB. These acidic ions were mainly sourced from industrial emissions and agricultural activities.
Shengqian Zhou, Haowen Li, Tianjiao Yang, Ying Chen, Congrui Deng, Yahui Gao, Changping Chen, and Jian Xu
Atmos. Chem. Phys., 19, 10447–10467, https://doi.org/10.5194/acp-19-10447-2019, https://doi.org/10.5194/acp-19-10447-2019, 2019
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An integrated observation on aerosol aminiums over a coastal city in eastern China, a nearby island and the surrounding marginal seas was conducted. Aminium concentrations exhibited significant spatiotemporal variation, which is dependent on their sources and environmental factors, including boundary layer height, temperature, atmospheric oxidizing capacity and relative humidity. The contributions of terrestrial and marine sources to aminiums over coastal areas were quantitatively calculated.
Xiaofei Qin, Xiaohao Wang, Yijie Shi, Guangyuan Yu, Na Zhao, Yanfen Lin, Qingyan Fu, Dongfang Wang, Zhouqing Xie, Congrui Deng, and Kan Huang
Atmos. Chem. Phys., 19, 5923–5940, https://doi.org/10.5194/acp-19-5923-2019, https://doi.org/10.5194/acp-19-5923-2019, 2019
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The seasonal pattern of atmospheric mercury species over a regional transport intersection zone in east China indicated impacts from both natural re-emissions and anthropogenic emissions. Quasi-local sources were more important than long-range transport for mercury, opposite from particles. Shipping activities were especially outstanding emissions. Abnormally high GOM was ascribed to the high oxidant levels. The gas–particle partition inhibited the formation of GOM under high particle levels.
Md. Mozammel Haque, Kimitaka Kawamura, Dhananjay K. Deshmukh, Cao Fang, Wenhuai Song, Bao Mengying, and Yan-Lin Zhang
Atmos. Chem. Phys., 19, 5147–5164, https://doi.org/10.5194/acp-19-5147-2019, https://doi.org/10.5194/acp-19-5147-2019, 2019
Karl Espen Yttri, David Simpson, Robert Bergström, Gyula Kiss, Sönke Szidat, Darius Ceburnis, Sabine Eckhardt, Christoph Hueglin, Jacob Klenø Nøjgaard, Cinzia Perrino, Ignazio Pisso, Andre Stephan Henry Prevot, Jean-Philippe Putaud, Gerald Spindler, Milan Vana, Yan-Lin Zhang, and Wenche Aas
Atmos. Chem. Phys., 19, 4211–4233, https://doi.org/10.5194/acp-19-4211-2019, https://doi.org/10.5194/acp-19-4211-2019, 2019
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Carbonaceous aerosols from natural sources were abundant regardless of season. Residential wood burning (RWB) emissions were occasionally equally as large as or larger than of fossil-fuel sources, depending on season and region. RWB emissions are poorly constrained; thus emissions inventories need improvement. Harmonizing emission factors between countries is likely the most important step to improve model calculations for biomass burning emissions and European PM2.5 concentrations in general.
Huan Yu, Lili Ren, Xiangpeng Huang, Mingjie Xie, Jun He, and Hang Xiao
Atmos. Chem. Phys., 19, 4025–4039, https://doi.org/10.5194/acp-19-4025-2019, https://doi.org/10.5194/acp-19-4025-2019, 2019
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Iodine is an essential trace element for mammals and aquatic plants. Increasing alga populations due to serious eutrophication in the coastal waters of China promote iodine emission. China contributes about 60 % of the global cultivated seaweed production. Iodine is likely emitted to the atmosphere and transformed into nanoparticles during the farming, harvesting, and processing of seaweed. Wild and farmed algae make the coastal area of China a potential hotspot of new particle formation.
Mingjie Xie, Xi Chen, Michael D. Hays, and Amara L. Holder
Atmos. Chem. Phys., 19, 2899–2915, https://doi.org/10.5194/acp-19-2899-2019, https://doi.org/10.5194/acp-19-2899-2019, 2019
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We did a comprehensive work on understanding the composition and structural information of N-containing aromatic compounds (NACs) and their contributions to organic matter and bulk extract absorption of biomass burning (BB) aerosols. Some NACs with methoxy and cyanate groups specific to the BB were identified. The general implication is that the formation of NACs during BB might depend largely on burn conditions and is less impacted by fuel types and/or ambient conditions.
Xinyi Dong, Joshua S. Fu, Qingzhao Zhu, Jian Sun, Jiani Tan, Terry Keating, Takashi Sekiya, Kengo Sudo, Louisa Emmons, Simone Tilmes, Jan Eiof Jonson, Michael Schulz, Huisheng Bian, Mian Chin, Yanko Davila, Daven Henze, Toshihiko Takemura, Anna Maria Katarina Benedictow, and Kan Huang
Atmos. Chem. Phys., 18, 15581–15600, https://doi.org/10.5194/acp-18-15581-2018, https://doi.org/10.5194/acp-18-15581-2018, 2018
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We have applied the HTAP phase II multi-model data to investigate the long-range transport impacts on surface concentration and column density of PM from Europe and Russia, Belarus, and Ukraine to eastern Asia, with a special focus on the long-range transport contribution during haze episodes in China. We found that long-range transport plays a more important role in elevating the background concentration of surface PM during the haze days.
Yu-Chi Lin, Shih-Chieh Hsu, Chuan-Yao Lin, Shuen-Hsin Lin, Yi-Tang Huang, Yunhua Chang, and Yan-Lin Zhang
Atmos. Chem. Phys., 18, 13865–13879, https://doi.org/10.5194/acp-18-13865-2018, https://doi.org/10.5194/acp-18-13865-2018, 2018
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The Asian continent is a well-known big source of airborne As in the North Pacific region. Previously, high As concentrations over the free troposphere in the region have been observed and considered contributions of industrial emissions, especially of coal-combustion. In our study, we proposed a new concept for a potential source of high As over the subtropical free troposphere, that is, BB activities over southern Asia might be an important source of airborne arsenic in the springtime.
Ying Ji, Xiaofei Qin, Bo Wang, Jian Xu, Jiandong Shen, Jianmin Chen, Kan Huang, Congrui Deng, Renchang Yan, Kaier Xu, and Tian Zhang
Atmos. Chem. Phys., 18, 13581–13600, https://doi.org/10.5194/acp-18-13581-2018, https://doi.org/10.5194/acp-18-13581-2018, 2018
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Large-scale joint emission control measures were carried out in the Yangtze River Delta during the Hangzhou G20 Summit in 2016. The extent of secondary inorganic aerosol formation was found to be significantly enhanced under transport conditions from northern China. However, the formation of secondary organic aerosols was also greatly suppressed due to the emission control measures. Overall, it was found that regional/long-range transport could have offset part of the emission control efforts.
Yunhua Chang, Yanlin Zhang, Chongguo Tian, Shichun Zhang, Xiaoyan Ma, Fang Cao, Xiaoyan Liu, Wenqi Zhang, Thomas Kuhn, and Moritz F. Lehmann
Atmos. Chem. Phys., 18, 11647–11661, https://doi.org/10.5194/acp-18-11647-2018, https://doi.org/10.5194/acp-18-11647-2018, 2018
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We demonstrate that it is imperative that future studies, making use of isotope mixing models to gain conclusive constraints on the source partitioning of atmospheric NOx, consider this N isotope fractionation. Future assessments of NOx emissions in China (and elsewhere) should involve simultaneous δ15N and δ18O measurements of atmospheric nitrate and NOx at high spatiotemporal resolution, allowing former N-isotope-based NOx source partitioning estimates to be reevaluated more quantitatively.
Xi Chen, Mingjie Xie, Michael D. Hays, Eric Edgerton, Donna Schwede, and John T. Walker
Atmos. Chem. Phys., 18, 6829–6846, https://doi.org/10.5194/acp-18-6829-2018, https://doi.org/10.5194/acp-18-6829-2018, 2018
Di Liu, Matthias Vonwiller, Jun Li, Junwen Liu, Sönke Szidat, Yanlin Zhang, Chongguo Tian, Yinjun Chen, Zhineng Cheng, Guangcai Zhong, Pingqing Fu, and Gan Zhang
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2018-295, https://doi.org/10.5194/acp-2018-295, 2018
Revised manuscript not accepted
Meng Gao, Zhiwei Han, Zirui Liu, Meng Li, Jinyuan Xin, Zhining Tao, Jiawei Li, Jeong-Eon Kang, Kan Huang, Xinyi Dong, Bingliang Zhuang, Shu Li, Baozhu Ge, Qizhong Wu, Yafang Cheng, Yuesi Wang, Hyo-Jung Lee, Cheol-Hee Kim, Joshua S. Fu, Tijian Wang, Mian Chin, Jung-Hun Woo, Qiang Zhang, Zifa Wang, and Gregory R. Carmichael
Atmos. Chem. Phys., 18, 4859–4884, https://doi.org/10.5194/acp-18-4859-2018, https://doi.org/10.5194/acp-18-4859-2018, 2018
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Topic 3 of the Model Inter-Comparison Study for Asia (MICS-Asia) Phase III examines how online coupled air quality models perform in simulating high aerosol pollution in the North China Plain region during wintertime haze events and evaluates the importance of aerosol radiative and microphysical feedbacks. A comprehensive overview of the MICS-ASIA III Topic 3 study design is presented.
Yan-Lin Zhang, Imad El-Haddad, Ru-Jin Huang, Kin-Fai Ho, Jun-Ji Cao, Yongming Han, Peter Zotter, Carlo Bozzetti, Kaspar R. Daellenbach, Jay G. Slowik, Gary Salazar, André S. H. Prévôt, and Sönke Szidat
Atmos. Chem. Phys., 18, 4005–4017, https://doi.org/10.5194/acp-18-4005-2018, https://doi.org/10.5194/acp-18-4005-2018, 2018
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Here we present a quantitative source apportionment of WSOC, isolated from aerosols in China using radiocarbon (14C) and offline high-resolution time of flight aerosol mass spectrometer measurements. We demonstrate a dominant contribution of non-fossil emissions to WSOC aerosols in the Northern Hemisphere. However, the fossil fraction is substantially larger in aerosols from East Asia and the east Asian pollution outflow, especially during winter, due to increasing coal combustion.
Qiongzhen Wang, Xinyi Dong, Joshua S. Fu, Jian Xu, Congrui Deng, Yilun Jiang, Qingyan Fu, Yanfen Lin, Kan Huang, and Guoshun Zhuang
Atmos. Chem. Phys., 18, 3505–3521, https://doi.org/10.5194/acp-18-3505-2018, https://doi.org/10.5194/acp-18-3505-2018, 2018
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A synergy of ground-based atmospheric chemistry observation, lidar, and numerical modeling was used to investigate a super dust event passing over Shanghai. The degree of dust that was modified by anthropogenic sources highly depended on the transport pathways. A community regional air quality model with improved dust scheme reproduced reasonable dust chemistry results. The chemical and optical properties of evolving dust are crucial for evaluating the climatic effects of dust.
Yunhua Chang, Congrui Deng, Fang Cao, Chang Cao, Zhong Zou, Shoudong Liu, Xuhui Lee, Jun Li, Gan Zhang, and Yanlin Zhang
Atmos. Chem. Phys., 17, 9945–9964, https://doi.org/10.5194/acp-17-9945-2017, https://doi.org/10.5194/acp-17-9945-2017, 2017
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This paper presents the results from a 5-year and near-real-time measurement study of carbonaceous aerosols in PM2.5 conducted at an urban site in Shanghai. Moreover, we integrated the results from historical field measurements and satellite observations, concluding that carbonaceous aerosol pollution in Shanghai has gradually reduced since 2006. This can be largely explained by the introduction of air-cleaning measures such as controlling vehicular emissions.
Peter Zotter, Hanna Herich, Martin Gysel, Imad El-Haddad, Yanlin Zhang, Griša Močnik, Christoph Hüglin, Urs Baltensperger, Sönke Szidat, and André S. H. Prévôt
Atmos. Chem. Phys., 17, 4229–4249, https://doi.org/10.5194/acp-17-4229-2017, https://doi.org/10.5194/acp-17-4229-2017, 2017
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Most studies use a single Ångström exponent for wood burning (αWB) and traffic (αTR) emissions in the Aethalometer model, used for source apportionment of black carbon, derived from previous work. However, accurate determination of the α values is currently lacking. Comparing radiocarbon measurements (14C) with the Aehtalometer model, good agreement was found, indicating that the Aethalometer model reproduces reasonably well the 14C results using our best estimate of a single αWB and αTR.
Yunhua Chang, Xuejun Liu, Congrui Deng, Anthony J. Dore, and Guoshun Zhuang
Atmos. Chem. Phys., 16, 11635–11647, https://doi.org/10.5194/acp-16-11635-2016, https://doi.org/10.5194/acp-16-11635-2016, 2016
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First, we establish a pool of isotopic signatures (δ15N–NH3) for the major NH3 emission sources in China. Second, we demonstrated that the isotopic source signatures of NH3 represent an emerging tool for partitioning NH3 sources in urban atmospheres.
Xinyi Dong, Joshua S. Fu, Kan Huang, Daniel Tong, and Guoshun Zhuang
Atmos. Chem. Phys., 16, 8157–8180, https://doi.org/10.5194/acp-16-8157-2016, https://doi.org/10.5194/acp-16-8157-2016, 2016
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The Community Multiscale Air Quality (CMAQ) model has been further developed in terms of simulating natural wind-blown dust in this study, with a series of modifications aimed at improving the model's capability to predict the emission, transport, and chemical reactions of dust aerosols. Evaluation with observations suggested improved model performance by correcting the double counting of soil moisture impact, applying source-dependent speciation profile, and implementing heterogeneous chemitry.
Yan-Lin Zhang, Kimitaka Kawamura, Ping Qing Fu, Suresh K. R. Boreddy, Tomomi Watanabe, Shiro Hatakeyama, Akinori Takami, and Wei Wang
Atmos. Chem. Phys., 16, 6407–6419, https://doi.org/10.5194/acp-16-6407-2016, https://doi.org/10.5194/acp-16-6407-2016, 2016
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Here, based on three aircraft measurements over East Asia, we demonstrate an aqueous-phase mechanism for enhanced SOA production in the troposphere following correlation analysis of oxalic acid in tropospheric aerosols with other measured chemical variables including its precursors and its intermediate as well as biogenic-derived SOA from isoprene, monoterpenes and β-caryophyllene.
Yunhua Chang, Zhong Zou, Congrui Deng, Kan Huang, Jeffrey L. Collett, Jing Lin, and Guoshun Zhuang
Atmos. Chem. Phys., 16, 3577–3594, https://doi.org/10.5194/acp-16-3577-2016, https://doi.org/10.5194/acp-16-3577-2016, 2016
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This study linked a long-term and near real-time measurement of NH3 at one of China’s flagship supersites with a vehicle source-specific campaign performed inside and outside of a major freeway tunnel in Shanghai. Our results clearly show that vehicle emissions associated with combustion are an important NH3 source in Shanghai urban areas and may have potential implications for PM2.5 pollution in the urban atmosphere.
Junwen Liu, Jun Li, Di Liu, Ping Ding, Chengde Shen, Yangzhi Mo, Xinming Wang, Chunling Luo, Zhineng Cheng, Sönke Szidat, Yanlin Zhang, Yingjun Chen, and Gan Zhang
Atmos. Chem. Phys., 16, 2985–2996, https://doi.org/10.5194/acp-16-2985-2016, https://doi.org/10.5194/acp-16-2985-2016, 2016
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Many Chinese cities now are suffering the high loadings of fine particular matters, which can bring a lot of negative impacts on air quality, human health, and the climate system. The Chinese government generally focuses on the control of the emissions from vehicles and industry. Our results evidently show that the burning of biomass materials such as wood and agricultural residues can lead to the urban air pollution in China. The characteristic of haze covering China is distinct from regions.
K. R. Daellenbach, C. Bozzetti, A. Křepelová, F. Canonaco, R. Wolf, P. Zotter, P. Fermo, M. Crippa, J. G. Slowik, Y. Sosedova, Y. Zhang, R.-J. Huang, L. Poulain, S. Szidat, U. Baltensperger, I. El Haddad, and A. S. H. Prévôt
Atmos. Meas. Tech., 9, 23–39, https://doi.org/10.5194/amt-9-23-2016, https://doi.org/10.5194/amt-9-23-2016, 2016
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In this study, we developed an offline technique using the AMS for the characterization of the chemical fingerprints of aerosols collected on quartz filters, and evaluated the suitability of the organic mass spectral data for source apportionment. This technique may be used to enhance the AMS capabilities in measuring size-fractionated, spatially resolved long-term data sets.
G. O. Mouteva, S. M. Fahrni, G. M. Santos, J. T. Randerson, Y.-L. Zhang, S. Szidat, and C. I. Czimczik
Atmos. Meas. Tech., 8, 3729–3743, https://doi.org/10.5194/amt-8-3729-2015, https://doi.org/10.5194/amt-8-3729-2015, 2015
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We describe a stepwise uncertainty analysis of 14C measurements of organic (OC) and elemental (EC) carbon fractions of aerosols. Using the Swiss_4S thermal-optical protocol with a newly established trapping setup, we show that we can efficiently isolate and trap each carbon fraction and perform 14C analysis of ultra-small OC and EC samples with high accuracy and low 14C blanks. Our study presents a first step towards the development of a common protocol for OC and EC 14C measurements.
Y.-L. Zhang, R.-J. Huang, I. El Haddad, K.-F. Ho, J.-J. Cao, Y. Han, P. Zotter, C. Bozzetti, K. R. Daellenbach, F. Canonaco, J. G. Slowik, G. Salazar, M. Schwikowski, J. Schnelle-Kreis, G. Abbaszade, R. Zimmermann, U. Baltensperger, A. S. H. Prévôt, and S. Szidat
Atmos. Chem. Phys., 15, 1299–1312, https://doi.org/10.5194/acp-15-1299-2015, https://doi.org/10.5194/acp-15-1299-2015, 2015
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Source apportionment of fine carbonaceous aerosols using radiocarbon and other organic markers measurements during 2013 winter haze episodes was conducted at four megacities in China. Our results demonstrate that fossil emissions predominate EC with a mean contribution of 75±8%, whereas non-fossil sources account for 55±10% of OC; and the increment of TC on heavily polluted days was mainly driven by the increase of secondary OC from both fossil-fuel and non-fossil emissions.
P. Zotter, V. G. Ciobanu, Y. L. Zhang, I. El-Haddad, M. Macchia, K. R. Daellenbach, G. A. Salazar, R.-J. Huang, L. Wacker, C. Hueglin, A. Piazzalunga, P. Fermo, M. Schwikowski, U. Baltensperger, S. Szidat, and A. S. H. Prévôt
Atmos. Chem. Phys., 14, 13551–13570, https://doi.org/10.5194/acp-14-13551-2014, https://doi.org/10.5194/acp-14-13551-2014, 2014
Y. H. Chang
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acpd-14-8495-2014, https://doi.org/10.5194/acpd-14-8495-2014, 2014
Revised manuscript has not been submitted
K. Huang, G. Zhuang, Q. Wang, J. S. Fu, Y. Lin, T. Liu, L. Han, and C. Deng
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acpd-14-7517-2014, https://doi.org/10.5194/acpd-14-7517-2014, 2014
Revised manuscript not accepted
M. Xie, K. C. Barsanti, M. P. Hannigan, S. J. Dutton, and S. Vedal
Atmos. Chem. Phys., 13, 7381–7393, https://doi.org/10.5194/acp-13-7381-2013, https://doi.org/10.5194/acp-13-7381-2013, 2013
K. Huang, G. Zhuang, Y. Lin, Q. Wang, J. S. Fu, Q. Fu, T. Liu, and C. Deng
Atmos. Chem. Phys., 13, 5927–5942, https://doi.org/10.5194/acp-13-5927-2013, https://doi.org/10.5194/acp-13-5927-2013, 2013
K. Huang, G. Zhuang, Y. Lin, Q. Wang, J. S. Fu, R. Zhang, J. Li, C. Deng, and Q. Fu
Atmos. Chem. Phys., 12, 11631–11645, https://doi.org/10.5194/acp-12-11631-2012, https://doi.org/10.5194/acp-12-11631-2012, 2012
Related subject area
Subject: Aerosols | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Opinion: New directions in atmospheric research offered by research infrastructures combined with open and data-intensive science
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Tropospheric sulfate from Cumbre Vieja (La Palma) observed over Cabo Verde contrasted with background conditions: a lidar case study of aerosol extinction, backscatter, depolarization and lidar ratio profiles at 355, 532 and 1064 nm
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The Puy de Dôme ICe Nucleation Intercomparison Campaign (PICNIC): comparison between online and offline methods in ambient air
Optical properties and simple forcing efficiency of the organic aerosols and black carbon emitted by residential wood burning in rural central Europe
Particle phase state and aerosol liquid water greatly impact secondary aerosol formation: insights into phase transition and its role in haze events
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Higher absorption enhancement of black carbon in summer shown by 2-year measurements at the high-altitude mountain site of Pic du Midi Observatory in the French Pyrenees
Variations of the atmospheric polycyclic aromatic hydrocarbon concentrations, sources, and health risk and the direct medical costs of lung cancer around the Bohai Sea against a background of pollution prevention and control in China
The Spatial and Temporal Impact of the February 26, 2023, Dust Storm on the Meteorological Conditions and Particulate Matter Concentrations Across New Mexico and West Texas
Characterization of aerosol over the Eastern Mediterranean by polarization sensitive Raman lidar measurements during A-LIFE – aerosol type classification and type separation
Introducing the novel concept of cumulative concentration roses for studying the transport of ultrafine particles from an airport to adjacent residential areas
Significant spatial gradients in new particle formation frequency in Greece during summer
Sami D. Harni, Minna Aurela, Sanna Saarikoski, Jarkko V. Niemi, Harri Portin, Hanna Manninen, Ville Leinonen, Pasi Aalto, Phil K. Hopke, Tuukka Petäjä, Topi Rönkkö, and Hilkka Timonen
Atmos. Chem. Phys., 24, 12143–12160, https://doi.org/10.5194/acp-24-12143-2024, https://doi.org/10.5194/acp-24-12143-2024, 2024
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In this study, particle number size distribution data were used in a novel way in positive matrix factorization analysis to find aerosol source profiles in the area. Measurements were made in Helsinki at a street canyon and urban background sites between February 2015 and June 2019. Five different aerosol sources were identified. These sources underline the significance of traffic-related emissions in urban environments despite recent improvements in emission reduction technologies.
Natalie G. Ratcliffe, Claire L. Ryder, Nicolas Bellouin, Stephanie Woodward, Anthony Jones, Ben Johnson, Lisa-Maria Wieland, Maximilian Dollner, Josef Gasteiger, and Bernadett Weinzierl
Atmos. Chem. Phys., 24, 12161–12181, https://doi.org/10.5194/acp-24-12161-2024, https://doi.org/10.5194/acp-24-12161-2024, 2024
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Large mineral dust particles are more abundant in the atmosphere than expected and have different impacts on the environment than small particles, which are better represented in climate models. We use aircraft measurements to assess a climate model representation of large-dust transport. We find that the model underestimates the amount of large dust at all stages of transport and that fast removal of the large particles increases this underestimation with distance from the Sahara.
Sergio Rodríguez and Jessica López-Darias
Atmos. Chem. Phys., 24, 12031–12053, https://doi.org/10.5194/acp-24-12031-2024, https://doi.org/10.5194/acp-24-12031-2024, 2024
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Extreme Saharan dust events expanded northward to the Atlantic and Europe, prompting record-breaking PM10 and PM2.5 events. These episodes are caused by low-to-high dipole meteorology during hemispheric anomalies characterized by subtropical anticyclones shifting to higher latitudes, anomalous low pressures beyond the tropics and amplified Rossby waves. Extreme dust events occur in a paradoxical context of a multidecadal decrease in dust emissions, a topic that requires further investigation.
Valeria Mardoñez-Balderrama, Griša Močnik, Marco Pandolfi, Robin L. Modini, Fernando Velarde, Laura Renzi, Angela Marinoni, Jean-Luc Jaffrezo, Isabel Moreno R., Diego Aliaga, Federico Bianchi, Claudia Mohr, Martin Gysel-Beer, Patrick Ginot, Radovan Krejci, Alfred Wiedensohler, Gaëlle Uzu, Marcos Andrade, and Paolo Laj
Atmos. Chem. Phys., 24, 12055–12077, https://doi.org/10.5194/acp-24-12055-2024, https://doi.org/10.5194/acp-24-12055-2024, 2024
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Levels of black carbon (BC) are scarcely reported in the Southern Hemisphere, especially in high-altitude conditions. This study provides insight into the concentration level, variability, and optical properties of BC in La Paz and El Alto and at the Chacaltaya Global Atmosphere Watch Station. Two methods of source apportionment of absorption were tested and compared showing traffic as the main contributor to absorption in the urban area, in addition to biomass and open waste burning.
Krishnakant Budhavant, Mohanan Remani Manoj, Hari Ram Chandrika Rajendran Nair, Samuel Mwaniki Gaita, Henry Holmstrand, Abdus Salam, Ahmed Muslim, Sreedharan Krishnakumari Satheesh, and Örjan Gustafsson
Atmos. Chem. Phys., 24, 11911–11925, https://doi.org/10.5194/acp-24-11911-2024, https://doi.org/10.5194/acp-24-11911-2024, 2024
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The South Asian Pollution Experiment 2018 used access to three strategically located receptor observatories. Observational constraints revealed opposing trends in the mass absorption cross sections of black carbon (BC MAC) and brown carbon (BrC MAC) during long-range transport. Models estimating the climate effects of BC aerosols may have underestimated the ambient BC MAC over distant receptor areas, leading to discrepancies in aerosol absorption predicted by observation-constrained models.
Abigail S. Williams, Jeramy L. Dedrick, Lynn M. Russell, Florian Tornow, Israel Silber, Ann M. Fridlind, Benjamin Swanson, Paul J. DeMott, Paul Zieger, and Radovan Krejci
Atmos. Chem. Phys., 24, 11791–11805, https://doi.org/10.5194/acp-24-11791-2024, https://doi.org/10.5194/acp-24-11791-2024, 2024
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The measured aerosol size distribution modes reveal distinct properties characteristic of cold-air outbreaks in the Norwegian Arctic. We find higher sea spray number concentrations, smaller Hoppel minima, lower effective supersaturations, and accumulation-mode particle scavenging during cold-air outbreaks. These results advance our understanding of cold-air outbreak aerosol–cloud interactions in order to improve their accurate representation in models.
Franziska Vogel, Michael P. Adams, Larissa Lacher, Polly B. Foster, Grace C. E. Porter, Barbara Bertozzi, Kristina Höhler, Julia Schneider, Tobias Schorr, Nsikanabasi S. Umo, Jens Nadolny, Zoé Brasseur, Paavo Heikkilä, Erik S. Thomson, Nicole Büttner, Martin I. Daily, Romy Fösig, Alexander D. Harrison, Jorma Keskinen, Ulrike Proske, Jonathan Duplissy, Markku Kulmala, Tuukka Petäjä, Ottmar Möhler, and Benjamin J. Murray
Atmos. Chem. Phys., 24, 11737–11757, https://doi.org/10.5194/acp-24-11737-2024, https://doi.org/10.5194/acp-24-11737-2024, 2024
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Primary ice formation in clouds strongly influences their properties; hence, it is important to understand the sources of ice-nucleating particles (INPs) and their variability. We present 2 months of INP measurements in a Finnish boreal forest using a new semi-autonomous INP counting device based on gas expansion. These results show strong variability in INP concentrations, and we present a case that the INPs we observe are, at least some of the time, of biological origin.
Rebecca Dischl, Daniel Sauer, Christiane Voigt, Theresa Harlaß, Felicitas Sakellariou, Raphael Märkl, Ulrich Schumann, Monika Scheibe, Stefan Kaufmann, Anke Roiger, Andreas Dörnbrack, Charles Renard, Maxime Gauthier, Peter Swann, Paul Madden, Darren Luff, Mark Johnson, Denise Ahrens, Reetu Sallinen, Tobias Schripp, Georg Eckel, Uwe Bauder, and Patrick Le Clercq
Atmos. Chem. Phys., 24, 11255–11273, https://doi.org/10.5194/acp-24-11255-2024, https://doi.org/10.5194/acp-24-11255-2024, 2024
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In-flight measurements of aircraft emissions burning 100 % sustainable aviation fuel (SAF) show reduced particle number concentrations up to 41 % compared to conventional jet fuel. Particle emissions are dependent on engine power setting, flight altitude, and fuel composition. Engine models show a good correlation with measurement results. Future increased prevalence of SAF can positively influence the climate impact of aviation.
Zoé Brasseur, Julia Schneider, Janne Lampilahti, Ville Vakkari, Victoria A. Sinclair, Christina J. Williamson, Carlton Xavier, Dmitri Moisseev, Markus Hartmann, Pyry Poutanen, Markus Lampimäki, Markku Kulmala, Tuukka Petäjä, Katrianne Lehtipalo, Erik S. Thomson, Kristina Höhler, Ottmar Möhler, and Jonathan Duplissy
Atmos. Chem. Phys., 24, 11305–11332, https://doi.org/10.5194/acp-24-11305-2024, https://doi.org/10.5194/acp-24-11305-2024, 2024
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Ice-nucleating particles (INPs) strongly influence the formation of clouds by initiating the formation of ice crystals. However, very little is known about the vertical distribution of INPs in the atmosphere. Here, we present aircraft measurements of INP concentrations above the Finnish boreal forest. Results show that near-surface INPs are efficiently transported and mixed within the boundary layer and occasionally reach the free troposphere.
Piotr Markuszewski, E. Douglas Nilsson, Julika Zinke, E. Monica Mårtensson, Matthew Salter, Przemysław Makuch, Małgorzata Kitowska, Iwona Niedźwiecka-Wróbel, Violetta Drozdowska, Dominik Lis, Tomasz Petelski, Luca Ferrero, and Jacek Piskozub
Atmos. Chem. Phys., 24, 11227–11253, https://doi.org/10.5194/acp-24-11227-2024, https://doi.org/10.5194/acp-24-11227-2024, 2024
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Our research provides new insights into the study of sea spray aerosol (SSA) emissions in the Baltic Sea and North Atlantic. We observed that SSA flux is suppressed during increased marine biological activity in the Baltic Sea. At the same time, the influence of wave age showed higher SSA emissions in the Baltic Sea for younger waves compared to the Atlantic Ocean. These insights underscore the complex interplay between biological activity and physical dynamics in regulating SSA emissions.
Heather Guy, Andrew S. Martin, Erik Olson, Ian M. Brooks, and Ryan R. Neely III
Atmos. Chem. Phys., 24, 11103–11114, https://doi.org/10.5194/acp-24-11103-2024, https://doi.org/10.5194/acp-24-11103-2024, 2024
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Aerosol particles impact cloud properties which influence Greenland Ice Sheet melt. Understanding the aerosol population that interacts with clouds is important for constraining future melt. Measurements of aerosols at cloud height over Greenland are rare, and surface measurements are often used to investigate cloud–aerosol interactions. We use a tethered balloon to measure aerosols up to cloud base and show that surface measurements are often not equivalent to those just below the cloud.
Kouji Adachi, Jack E. Dibb, Joseph M. Katich, Joshua P. Schwarz, Hongyu Guo, Pedro Campuzano-Jost, Jose L. Jimenez, Jeff Peischl, Christopher D. Holmes, and James Crawford
Atmos. Chem. Phys., 24, 10985–11004, https://doi.org/10.5194/acp-24-10985-2024, https://doi.org/10.5194/acp-24-10985-2024, 2024
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We examined aerosol particles from wildfires and identified tarballs (TBs) from the Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) campaign. This study reveals the compositions, abundance, sizes, and mixing states of TBs and shows that TBs formed as the smoke aged for up to 5 h. This study provides measurements of TBs from various biomass-burning events and ages, enhancing our knowledge of TB emissions and our understanding of their climate impact.
Jia Sun, Markus Hermann, Kay Weinhold, Maik Merkel, Wolfram Birmili, Yifan Yang, Thomas Tuch, Harald Flentje, Björn Briel, Ludwig Ries, Cedric Couret, Michael Elsasser, Ralf Sohmer, Klaus Wirtz, Frank Meinhardt, Maik Schütze, Olaf Bath, Bryan Hellack, Veli-Matti Kerminen, Markku Kulmala, Nan Ma, and Alfred Wiedensohler
Atmos. Chem. Phys., 24, 10667–10687, https://doi.org/10.5194/acp-24-10667-2024, https://doi.org/10.5194/acp-24-10667-2024, 2024
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We investigated the characteristics of new particle formation (NPF) for various environments from urban background to high Alpine and the impacts of NPF on cloud condensation nuclei and aerosol radiative forcing. NPF features differ between site categories, implying the crucial role of local environmental factors such as the degree of emissions and meteorological conditions. The results also underscore the importance of local environments when assessing the impact of NPF on climate in models.
Baptiste Testa, Lukas Durdina, Jacinta Edebeli, Curdin Spirig, and Zamin A. Kanji
Atmos. Chem. Phys., 24, 10409–10424, https://doi.org/10.5194/acp-24-10409-2024, https://doi.org/10.5194/acp-24-10409-2024, 2024
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Aviation soot residuals released from contrails can become compacted upon sublimation of the ice crystals, generating new voids in the aggregates where ice nucleation can occur. Here we show that contrail-processed soot is highly compact but that it remains unable to form ice at a relative humidity different from that required for the formation of background cirrus from the more ubiquitous aqueous solution droplets, suggesting that it will not perturb cirrus cloud formation via ice nucleation.
Kunfeng Gao, Franziska Vogel, Romanos Foskinis, Stergios Vratolis, Maria I. Gini, Konstantinos Granakis, Anne-Claire Billault-Roux, Paraskevi Georgakaki, Olga Zografou, Prodromos Fetfatzis, Alexis Berne, Alexandros Papayannis, Konstantinos Eleftheridadis, Ottmar Möhler, and Athanasios Nenes
Atmos. Chem. Phys., 24, 9939–9974, https://doi.org/10.5194/acp-24-9939-2024, https://doi.org/10.5194/acp-24-9939-2024, 2024
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Ice nucleating particle (INP) concentrations are required for correct predictions of clouds and precipitation in a changing climate, but they are poorly constrained in climate models. We unravel source contributions to INPs in the eastern Mediterranean and find that biological particles are important, regardless of their origin. The parameterizations developed exhibit superior performance and enable models to consider biological-particle effects on INPs.
Alexandra Kuwano, Amato T. Evan, Blake Walkowiak, and Robert Frouin
Atmos. Chem. Phys., 24, 9843–9868, https://doi.org/10.5194/acp-24-9843-2024, https://doi.org/10.5194/acp-24-9843-2024, 2024
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The dust direct radiative effect is highly uncertain. Here we used new measurements collected over 3 years and during dust storms at a field site in a desert region in the southwestern United States to estimate the regional dust direct radiative effect. We also used novel soil mineralogy retrieved from an airborne spectrometer to estimate this parameter with model output. We find that, in this region, dust has a minimal net cooling effect on this region's climate.
Jutta Kesti, Ewan J. O'Connor, Anne Hirsikko, John Backman, Maria Filioglou, Anu-Maija Sundström, Juha Tonttila, Heikki Lihavainen, Hannele Korhonen, and Eija Asmi
Atmos. Chem. Phys., 24, 9369–9386, https://doi.org/10.5194/acp-24-9369-2024, https://doi.org/10.5194/acp-24-9369-2024, 2024
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The study combines aerosol particle measurements at the surface and vertical profiling of the atmosphere with a scanning Doppler lidar to investigate how particle transportation together with boundary layer evolution can affect particle and SO2 concentrations at the surface in the Arabian Peninsula region. The instrumentation enabled us to see elevated nucleation mode particle and SO2 concentrations at the surface when air masses transported from polluted areas are mixed in the boundary layer.
Jiangchuan Tao, Biao Luo, Weiqi Xu, Gang Zhao, Hanbin Xu, Biao Xue, Miaomiao Zhai, Wanyun Xu, Huarong Zhao, Sanxue Ren, Guangsheng Zhou, Li Liu, Ye Kuang, and Yele Sun
Atmos. Chem. Phys., 24, 9131–9154, https://doi.org/10.5194/acp-24-9131-2024, https://doi.org/10.5194/acp-24-9131-2024, 2024
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Using simultaneous measurements of DMA–CCNC, H(/V)TDMA, and DMA–SP2, impacts of primary emissions and secondary aerosol formations on changes in aerosol physicochemical properties were comprehensively investigated. It was found that intercomparisons among aerosol mixing-state parameters derived from different techniques can help us gain more insight into aerosol physical properties which, in turn, will aid the investigation of emission characteristics and secondary aerosol formation pathways.
Marco A. Franco, Rafael Valiati, Bruna A. Holanda, Bruno B. Meller, Leslie A. Kremper, Luciana V. Rizzo, Samara Carbone, Fernando G. Morais, Janaína P. Nascimento, Meinrat O. Andreae, Micael A. Cecchini, Luiz A. T. Machado, Milena Ponczek, Ulrich Pöschl, David Walter, Christopher Pöhlker, and Paulo Artaxo
Atmos. Chem. Phys., 24, 8751–8770, https://doi.org/10.5194/acp-24-8751-2024, https://doi.org/10.5194/acp-24-8751-2024, 2024
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The Amazon wet-season atmosphere was studied at the Amazon Tall Tower Observatory site, revealing vertical variations (between 60 and 325 m) in natural aerosols. Daytime mixing contrasted with nighttime stratification, with distinct rain-induced changes in aerosol populations. Notably, optical property recovery at higher levels was faster, while near-canopy aerosols showed higher scattering efficiency. These findings enhance our understanding of aerosol impacts on climate dynamics.
Kristina Pistone, Eric M. Wilcox, Paquita Zuidema, Marco Giordano, James Podolske, Samuel E. LeBlanc, Meloë Kacenelenbogen, Steven G. Howell, and Steffen Freitag
Atmos. Chem. Phys., 24, 7983–8005, https://doi.org/10.5194/acp-24-7983-2024, https://doi.org/10.5194/acp-24-7983-2024, 2024
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The springtime southeast Atlantic atmosphere contains lots of smoke from continental fires. This smoke travels with water vapor; more smoke means more humidity. We use aircraft observations and models to describe how the values change through the season and over the region. We sort the atmosphere into different types by vertical structure and amount of smoke and humidity. Since our work shows how frequently these components coincide, it helps to better quantify heating effects over this region.
Julika Zinke, Gabriel Freitas, Rachel Ann Foster, Paul Zieger, Ernst Douglas Nilsson, Piotr Markuszewski, and Matthew Edward Salter
EGUsphere, https://doi.org/10.5194/egusphere-2024-1851, https://doi.org/10.5194/egusphere-2024-1851, 2024
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Bioaerosols, which can influence climate and human health, were studied in the Baltic Sea. In May and August 2021, we used a sea spray simulation chamber on two ship based campaigns to collect and measure these aerosols. We found that bacteria were enriched in the air compared to seawater. Bacterial diversity was analyzed using DNA sequencing. Our methods provided consistent estimates of bacterial emission fluxes, aligning with previous studies.
Yange Deng, Hiroshi Tanimoto, Kohei Ikeda, Sohiko Kameyama, Sachiko Okamoto, Jinyoung Jung, Young Jun Yoon, Eun Jin Yang, and Sung-Ho Kang
Atmos. Chem. Phys., 24, 6339–6357, https://doi.org/10.5194/acp-24-6339-2024, https://doi.org/10.5194/acp-24-6339-2024, 2024
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Black carbon (BC) aerosols play important roles in Arctic climate change, yet they are not well understood because of limited observational data. We observed BC mass concentrations (mBC) in the western Arctic Ocean during summer and early autumn 2016–2020. The mean mBC in 2019 was much higher than in other years. Biomass burning was likely the dominant BC source. Boreal fire BC transport occurring near the surface and/or in the mid-troposphere contributed to high-BC events in the Arctic Ocean.
Chimurkar Navinya, Taveen Singh Kapoor, Gupta Anurag, Chandra Venkataraman, Harish C. Phuleria, and Rajan K. Chakrabarty
EGUsphere, https://doi.org/10.5194/egusphere-2024-1313, https://doi.org/10.5194/egusphere-2024-1313, 2024
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Brown carbon (BrC) aerosols show an order-of-magnitude variation in their light absorption strength. Our understanding of BrC from real-world biomass burning remains limited, complicating the determination of their radiative impact. Our study reports absorption properties of BrC emitted from four major biomass burning sources using field measurements in India. It develops an absorption parameterization for BrC and examines the spatial variability of BrC's absorption strength across India.
Erin N. Raif, Sarah L. Barr, Mark D. Tarn, James B. McQuaid, Martin I. Daily, Steven J. Abel, Paul A. Barrett, Keith N. Bower, Paul R. Field, Kenneth S. Carslaw, and Benjamin J. Murray
EGUsphere, https://doi.org/10.5194/egusphere-2024-1502, https://doi.org/10.5194/egusphere-2024-1502, 2024
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Ice-nucleating particles (INPs) allow ice to form in clouds at temperatures warmer than -35°C. We measured INP concentrations over the Norwegian and Barents seas in weather events where cold air is ejected from the Arctic. These concentrations were among the highest measured in the Arctic and it is likely that the INPs were transported to the Arctic from distant regions. These results show it is important to consider hemispheric-scale INP processes to understand INP concentrations in the Arctic.
Fernando Rejano, Andrea Casans, Marta Via, Juan Andrés Casquero-Vera, Sonia Castillo, Hassan Lyamani, Alberto Cazorla, Elisabeth Andrews, Daniel Pérez-Ramírez, Andrés Alastuey, Francisco Javier Gómez-Moreno, Lucas Alados-Arboledas, Francisco José Olmo, and Gloria Titos
EGUsphere, https://doi.org/10.5194/egusphere-2024-1059, https://doi.org/10.5194/egusphere-2024-1059, 2024
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This study provides valuable insights to improve cloud condensation nuclei (CCN) estimations at a high-altitude remote site which is influenced by nearby urban pollution. Understanding the factors that affect CCN estimations is essential to improve the CCN data coverage worldwide and assess aerosol-cloud interactions in a global scale. This is crucial for improving climate models since aerosol-cloud interactions are the most important source of uncertainty in climate projections.
Máté Vörösmarty, Philip K. Hopke, and Imre Salma
Atmos. Chem. Phys., 24, 5695–5712, https://doi.org/10.5194/acp-24-5695-2024, https://doi.org/10.5194/acp-24-5695-2024, 2024
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The World Health Organization identified ultrafine particles, which make up most of the particle number concentrations, as a potential risk factor for humans. The sources of particle numbers are very different from those of the particulate matter mass. We performed source apportionment of size-segregated particle number concentrations over the diameter range of 6–1000 nm in Budapest for 11 full years. Six source types were identified, characterized and quantified.
Jerome D. Fast, Adam C. Varble, Fan Mei, Mikhail Pekour, Jason Tomlinson, Alla Zelenyuk, Art J. Sedlacek III, Maria Zawadowicz, and Louisa K. Emmons
EGUsphere, https://doi.org/10.5194/egusphere-2024-1349, https://doi.org/10.5194/egusphere-2024-1349, 2024
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Aerosol property measurements recently collected at the ground and by a research aircraft in central Argentina during the CACTI campaign exhibit large spatial and temporal variability. These measurements coupled with coincident meteorological information provide a valuable dataset needed to evaluate and improve model predictions of aerosols in a traditionally data sparse region of South America.
Gabriel Pereira Freitas, Ben Kopec, Kouji Adachi, Radovan Krejci, Dominic Heslin-Rees, Karl Espen Yttri, Alun Hubbard, Jeffrey M. Welker, and Paul Zieger
Atmos. Chem. Phys., 24, 5479–5494, https://doi.org/10.5194/acp-24-5479-2024, https://doi.org/10.5194/acp-24-5479-2024, 2024
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Bioaerosols can participate in ice formation within clouds. In the Arctic, where global warming manifests most, they may become more important as their sources prevail for longer periods of the year. We have directly measured bioaerosols within clouds for a full year at an Arctic mountain site using a novel combination of cloud particle sampling and single-particle techniques. We show that bioaerosols act as cloud seeds and may influence the presence of ice within clouds.
Andreas Petzold, Ulrich Bundke, Anca Hienola, Paolo Laj, Cathrine Lund Myhre, Alex Vermeulen, Angeliki Adamaki, Werner Kutsch, Valerie Thouret, Damien Boulanger, Markus Fiebig, Markus Stocker, Zhiming Zhao, and Ari Asmi
Atmos. Chem. Phys., 24, 5369–5388, https://doi.org/10.5194/acp-24-5369-2024, https://doi.org/10.5194/acp-24-5369-2024, 2024
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Easy and fast access to long-term and high-quality observational data is recognised as fundamental to environmental research and the development of climate forecasting and assessment services. We discuss the potential new directions in atmospheric sciences offered by the atmosphere-centric European research infrastructures ACTRIS, IAGOS, and ICOS, building on their capabilities for standardised provision of data through open access combined with tools and methods of data-intensive science.
Elise K. Wilbourn, Larissa Lacher, Carlos Guerrero, Hemanth S. K. Vepuri, Kristina Höhler, Jens Nadolny, Aidan D. Pantoya, Ottmar Möhler, and Naruki Hiranuma
Atmos. Chem. Phys., 24, 5433–5456, https://doi.org/10.5194/acp-24-5433-2024, https://doi.org/10.5194/acp-24-5433-2024, 2024
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Ambient ice particles were measured at terrestrial and temperate marine sites. Ice particles were more abundant in the former site, while the fraction of ice particles relative to total ambient particles, representing atmospheric ice nucleation efficiency, was higher in the latter site. Ice nucleation parameterizations were developed as a function of examined freezing temperatures from two sites for our study periods (autumn).
Ping Tian, Dantong Liu, Kang Hu, Yangzhou Wu, Mengyu Huang, Hui He, Jiujiang Sheng, Chenjie Yu, Dawei Hu, and Deping Ding
Atmos. Chem. Phys., 24, 5149–5164, https://doi.org/10.5194/acp-24-5149-2024, https://doi.org/10.5194/acp-24-5149-2024, 2024
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The results provide direct evidence of efficient droplet activation of black carbon (BC). The cloud condensation nuclei (CCN) activation fraction of BC was higher than for all particles, suggesting higher CCN activity of BC, even though its hygroscopicity is lower. Our research reveals that the evolution of BC's hygroscopicity and its CCN activation properties through atmospheric aging can be effectively characterized by the photochemical age.
Henriette Gebauer, Athena Augusta Floutsi, Moritz Haarig, Martin Radenz, Ronny Engelmann, Dietrich Althausen, Annett Skupin, Albert Ansmann, Cordula Zenk, and Holger Baars
Atmos. Chem. Phys., 24, 5047–5067, https://doi.org/10.5194/acp-24-5047-2024, https://doi.org/10.5194/acp-24-5047-2024, 2024
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Sulfate aerosol from the volcanic eruption at La Palma in 2021 was observed over Cabo Verde. We characterized the aerosol burden based on a case study of lidar and sun photometer observations. We compared the volcanic case to the typical background conditions (reference case) to quantify the volcanic pollution. We show the first ever measurements of the extinction coefficient, lidar ratio and depolarization ratio at 1064 nm for volcanic sulfate.
Cyrille Flamant, Jean-Pierre Chaboureau, Marco Gaetani, Kerstin Schepanski, and Paola Formenti
Atmos. Chem. Phys., 24, 4265–4288, https://doi.org/10.5194/acp-24-4265-2024, https://doi.org/10.5194/acp-24-4265-2024, 2024
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In the austral dry season, the atmospheric composition over southern Africa is dominated by biomass burning aerosols and terrigenous aerosols (so-called mineral dust). This study suggests that the radiative effect of biomass burning aerosols needs to be taken into account to properly forecast dust emissions in Namibia.
Boming Liu, Xin Ma, Jianping Guo, Renqiang Wen, Hui Li, Shikuan Jin, Yingying Ma, Xiaoran Guo, and Wei Gong
Atmos. Chem. Phys., 24, 4047–4063, https://doi.org/10.5194/acp-24-4047-2024, https://doi.org/10.5194/acp-24-4047-2024, 2024
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Accurate wind profile estimation, especially for the lowest few hundred meters of the atmosphere, is of great significance for the weather, climate, and renewable energy sector. We propose a novel method that combines the power-law method with the random forest algorithm to extend wind profiles beyond the surface layer. Compared with the traditional algorithm, this method has better stability and spatial applicability and can be used to obtain the wind profiles on different land cover types.
Gabriela R. Unfer, Luiz A. T. Machado, Paulo Artaxo, Marco A. Franco, Leslie A. Kremper, Mira L. Pöhlker, Ulrich Pöschl, and Christopher Pöhlker
Atmos. Chem. Phys., 24, 3869–3882, https://doi.org/10.5194/acp-24-3869-2024, https://doi.org/10.5194/acp-24-3869-2024, 2024
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Amazonian aerosols and their interactions with precipitation were studied by understanding them in a 3D space based on three parameters that characterize the concentration and size distribution of aerosols. The results showed characteristic arrangements regarding seasonal and diurnal cycles, as well as when interacting with precipitation. The use of this 3D space appears to be a promising tool for aerosol population analysis and for model validation and parameterization.
Anil Kumar Mandariya, Ajit Ahlawat, Mohammed Haneef, Nisar Ali Baig, Kanan Patel, Joshua Apte, Lea Hildebrandt Ruiz, Alfred Wiedensohler, and Gazala Habib
Atmos. Chem. Phys., 24, 3627–3647, https://doi.org/10.5194/acp-24-3627-2024, https://doi.org/10.5194/acp-24-3627-2024, 2024
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The current study explores the temporal variation of size-selected particle hygroscopicity in Delhi for the first time. Here, we report that the high volume fraction contribution of ammonium chloride to aerosol governs the high aerosol hygroscopicity and associated liquid water content based on the experimental data. The episodically high ammonium chloride present in Delhi's atmosphere could lead to haze and fog formation under high relative humidity in the region.
Yueyue Cheng, Chao Liu, Jiandong Wang, Jiaping Wang, Zhouyang Zhang, Li Chen, Dafeng Ge, Caijun Zhu, Jinbo Wang, and Aijun Ding
Atmos. Chem. Phys., 24, 3065–3078, https://doi.org/10.5194/acp-24-3065-2024, https://doi.org/10.5194/acp-24-3065-2024, 2024
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Brown carbon (BrC), a light-absorbing aerosol, plays a pivotal role in influencing global climate. However, assessing BrC radiative effects remains challenging because the required observational data are hardly accessible. Here we develop a new BrC radiative effect estimation method combining conventional observations and numerical models. Our findings reveal that BrC absorbs up to a third of the sunlight at 370 nm that black carbon does, highlighting its importance in aerosol radiative effects.
Larissa Lacher, Michael P. Adams, Kevin Barry, Barbara Bertozzi, Heinz Bingemer, Cristian Boffo, Yannick Bras, Nicole Büttner, Dimitri Castarede, Daniel J. Cziczo, Paul J. DeMott, Romy Fösig, Megan Goodell, Kristina Höhler, Thomas C. J. Hill, Conrad Jentzsch, Luis A. Ladino, Ezra J. T. Levin, Stephan Mertes, Ottmar Möhler, Kathryn A. Moore, Benjamin J. Murray, Jens Nadolny, Tatjana Pfeuffer, David Picard, Carolina Ramírez-Romero, Mickael Ribeiro, Sarah Richter, Jann Schrod, Karine Sellegri, Frank Stratmann, Benjamin E. Swanson, Erik S. Thomson, Heike Wex, Martin J. Wolf, and Evelyn Freney
Atmos. Chem. Phys., 24, 2651–2678, https://doi.org/10.5194/acp-24-2651-2024, https://doi.org/10.5194/acp-24-2651-2024, 2024
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Aerosol particles that trigger ice formation in clouds are important for the climate system but are very rare in the atmosphere, challenging measurement techniques. Here we compare three cloud chambers and seven methods for collecting aerosol particles on filters for offline analysis at a mountaintop station. A general good agreement of the methods was found when sampling aerosol particles behind a whole air inlet, supporting their use for obtaining data that can be implemented in models.
Andrea Cuesta-Mosquera, Kristina Glojek, Griša Močnik, Luka Drinovec, Asta Gregorič, Martin Rigler, Matej Ogrin, Baseerat Romshoo, Kay Weinhold, Maik Merkel, Dominik van Pinxteren, Hartmut Herrmann, Alfred Wiedensohler, Mira Pöhlker, and Thomas Müller
Atmos. Chem. Phys., 24, 2583–2605, https://doi.org/10.5194/acp-24-2583-2024, https://doi.org/10.5194/acp-24-2583-2024, 2024
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This study evaluated the air pollution and climate impacts of residential-wood-burning particle emissions from a rural European site. The authors investigate the optical and physical properties that connect the aerosol emissions with climate by evaluating atmospheric radiative impacts via simple-forcing calculations. The study contributes to reducing the lack of information on the understanding of the optical properties of air pollution from anthropogenic sources.
Xiangxinyue Meng, Zhijun Wu, Jingchuan Chen, Yanting Qiu, Taomou Zong, Mijung Song, Jiyi Lee, and Min Hu
Atmos. Chem. Phys., 24, 2399–2414, https://doi.org/10.5194/acp-24-2399-2024, https://doi.org/10.5194/acp-24-2399-2024, 2024
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Our study revealed that particles predominantly exist in a semi-solid or solid state during clean winter days with RH below 30 %. However, a non-liquid to a liquid phase transition occurred when the aerosol liquid water (ALW) mass fraction surpassed 15 % (dry mass) at transition RH thresholds ranging from 40 % to 60 %. We also provide insights into the increasingly important roles of particle phase state variation and ALW in secondary particulate growth during haze formation in Beijing, China.
Bighnaraj Sarangi, Darrel Baumgardner, Ana Isabel Calvo, Benjamin Bolaños-Rosero, Roberto Fraile, Alberto Rodríguez-Fernández, Delia Fernández-González, Carlos Blanco-Alegre, Cátia Gonçalves, Estela D. Vicente, and Olga L. Mayol Bracero
EGUsphere, https://doi.org/10.5194/egusphere-2024-446, https://doi.org/10.5194/egusphere-2024-446, 2024
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Measurements of fluorescing aerosol particle properties have been made during two major African dust events, one over the island of Puerto Rico and the other over the city of León, Spain The measurements were with two Wideband Integrated Bioaerosol Spectrometers. A significant change in the background aerosol properties, at both locations, is observed when the dust is in the respective regions.
Yiming Wang, Haolin Wang, Yujie Qin, Xinqi Xu, Guowen He, Nanxi Liu, Shengjie Miao, Xiao Lu, Haichao Wang, and Shaojia Fan
Atmos. Chem. Phys., 24, 2267–2285, https://doi.org/10.5194/acp-24-2267-2024, https://doi.org/10.5194/acp-24-2267-2024, 2024
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We conducted a vertical measurement of winter PM2.5 using a mobile multi-lidar system in four cities. Combined with the surface PM2.5 data, the ERA5 reanalysis data, and GEOS-Chem simulations during Dec 2018–Feb 2019, we found that transport nocturnal PM2.5 enhancement by subsidence (T-NPES) events widely occurred with high frequencies in plains regions in eastern China but happened less often in basin regions like Xi’an and Chengdu. We propose a conceptual model of the T-NPES events.
Dominic Heslin-Rees, Peter Tunved, Johan Ström, Roxana Cremer, Paul Zieger, Ilona Riipinen, Annica M. L. Ekman, Konstantinos Eleftheriadis, and Radovan Krejci
Atmos. Chem. Phys., 24, 2059–2075, https://doi.org/10.5194/acp-24-2059-2024, https://doi.org/10.5194/acp-24-2059-2024, 2024
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Light-absorbing atmospheric particles (e.g. black carbon – BC) exert a warming effect on the Arctic climate. We show that the amount of particle light absorption decreased from 2002 to 2023. We conclude that in addition to reductions in emissions of BC, wet removal plays a role in the long-term reduction of BC in the Arctic, given the increase in surface precipitation experienced by air masses arriving at the site. The potential impact of biomass burning events is shown to have increased.
Julika Zinke, Ernst Douglas Nilsson, Piotr Markuszewski, Paul Zieger, Eva Monica Mårtensson, Anna Rutgersson, Erik Nilsson, and Matthew Edward Salter
Atmos. Chem. Phys., 24, 1895–1918, https://doi.org/10.5194/acp-24-1895-2024, https://doi.org/10.5194/acp-24-1895-2024, 2024
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We conducted two research campaigns in the Baltic Sea, during which we combined laboratory sea spray simulation experiments with flux measurements on a nearby island. To combine these two methods, we scaled the laboratory measurements to the flux measurements using three different approaches. As a result, we derived a parameterization that is dependent on wind speed and wave state for particles with diameters 0.015–10 μm. This parameterization is applicable to low-salinity waters.
Sarah Tinorua, Cyrielle Denjean, Pierre Nabat, Thierry Bourrianne, Véronique Pont, François Gheusi, and Emmanuel Leclerc
Atmos. Chem. Phys., 24, 1801–1824, https://doi.org/10.5194/acp-24-1801-2024, https://doi.org/10.5194/acp-24-1801-2024, 2024
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At a French high-altitude site, where many complex interactions between black carbon (BC), radiation, clouds and snow impact climate, 2 years of refractive BC (rBC) and aerosol optical and microphysical measurements have been made. We observed strong seasonal rBC properties variations, with an enhanced absorption in summer compared to winter. The combination of rBC emission sources, transport pathways, atmospheric dynamics and chemical processes explains the rBC light absorption seasonality.
Wenwen Ma, Rong Sun, Xiaoping Wang, Zheng Zong, Shizhen Zhao, Zeyu Sun, Chongguo Tian, Jianhui Tang, Song Cui, Jun Li, and Gan Zhang
Atmos. Chem. Phys., 24, 1509–1523, https://doi.org/10.5194/acp-24-1509-2024, https://doi.org/10.5194/acp-24-1509-2024, 2024
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This is the first report of long-term atmospheric PAH monitoring around the Bohai Sea. The results showed that the concentrations of PAHs in the atmosphere around the Bohai Sea decreased from June 2014 to May 2019, especially the concentrations of highly toxic PAHs. This indicates that the contributions from PAH sources changed to a certain extent in different areas, and it also led to reductions in the related health risk and medical costs following pollution prevention and control.
Mary C. Robinson, Kaitlin Schueth, and Karin Ardon-Dryer
EGUsphere, https://doi.org/10.5194/egusphere-2024-113, https://doi.org/10.5194/egusphere-2024-113, 2024
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On February 26, 2023, New Mexico and West Texas were impacted by a severe dust storm. 21 meteorological stations and 19 PM2.5 and PM10 stations were used to analyze this dust storm. Dust articles were in the air for 18 hours, and dust storm conditions lasted up to 65 minutes. Hourly PM2.5 and PM10 concentrations were up to 518.4 and 9,983 µg m-3, respectively. For Lubbock, Texas the maximum PM2.5 concentrations were the highest ever recorded.
Silke Groß, Volker Freudenthaler, Moritz Haarig, Albert Ansmann, Carlos Toledano, David Mateos, Petra Seibert, Rodanthi-Elisavet Mamouri, Argyro Nisantzi, Josef Gasteiger, Maximilian Dollner, Anne Tipka, Manuel Schöberl, Marilena Teri, and Bernadett Weinzierl
EGUsphere, https://doi.org/10.5194/egusphere-2024-140, https://doi.org/10.5194/egusphere-2024-140, 2024
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Aerosols contribute to the largest uncertainties in climate change predictions. Especially absorbing aerosols propose difficulties in our understanding. The eastern Mediterranean is a hot spot for aerosols with natural and anthropogenic contributions. We present lidar measurements performed during the A-LIFE field experiment to characterize aerosols and aerosol mixtures. We extend current classification and separation schemes and compare different classification schemes.
Julius Seidler, Markus N. Friedrich, Christoph K. Thomas, and Anke C. Nölscher
Atmos. Chem. Phys., 24, 137–153, https://doi.org/10.5194/acp-24-137-2024, https://doi.org/10.5194/acp-24-137-2024, 2024
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Here, we study the transport of ultrafine particles (UFPs) from an airport to two new adjacent measuring sites for 1 year. The number of UFPs in the air and the diurnal variation are typical urban. Winds from the airport show increased number concentrations. Additionally, considering wind frequencies, we estimate that, from all UFPs measured at the two sites, 10 %–14 % originate from the airport and/or other UFP sources from between the airport and site.
Andreas Aktypis, Christos Kaltsonoudis, David Patoulias, Panayiotis Kalkavouras, Angeliki Matrali, Christina N. Vasilakopoulou, Evangelia Kostenidou, Kalliopi Florou, Nikos Kalivitis, Aikaterini Bougiatioti, Konstantinos Eleftheriadis, Stergios Vratolis, Maria I. Gini, Athanasios Kouras, Constantini Samara, Mihalis Lazaridis, Sofia-Eirini Chatoutsidou, Nikolaos Mihalopoulos, and Spyros N. Pandis
Atmos. Chem. Phys., 24, 65–84, https://doi.org/10.5194/acp-24-65-2024, https://doi.org/10.5194/acp-24-65-2024, 2024
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Extensive continuous particle number size distribution measurements took place during two summers (2020 and 2021) at 11 sites in Greece for the investigation of the frequency and the spatial extent of new particle formation. The frequency during summer varied from close to zero in southwestern Greece to more than 60 % in the northern, central, and eastern regions. The spatial variability can be explained by the proximity of the sites to coal-fired power plants and agricultural areas.
Cited articles
Amato, F., Pandolfi, M., Escrig, A., Querol, X., Alastuey, A., Pey, J.,
Perez, N., and Hopke, P. K.: Quantifying road dust resuspension in urban
environment by Multilinear Engine: A comparison with PMF2, Atmos. Environ.,
43, 2770–2780, https://doi.org/10.1016/j.atmosenv.2009.02.039, 2009.
Amato, F., Schaap, M., Denier van der Gon, H. A. C., Pandolfi, M., Alastuey,
A., Keuken, M., and Querol, X.: Short-term variability of mineral dust,
metals and carbon emission from road dust resuspension, Atmos. Environ., 74,
134–140, https://doi.org/10.1016/j.atmosenv.2013.03.037, 2013.
Brandt, C. and van Eldik, R.: Transition metal-catalyzed oxidation of sulfur
(IV) oxides. Atmospheric-relevant processes and mechanisms, Chem. Rev., 95,
119–190, https://doi.org/10.1021/cr00033a006, 1995.
Brown, S. G., Eberly, S., Paatero, P., and Norris, G. A.: Methods for
estimating uncertainty in PMF solutions: Examples with ambient air and water
quality data and guidance on reporting PMF results, Sci. Total Environ.,
518–519, 626–635, https://doi.org/10.1016/j.scitotenv.2015.01.022, 2015.
Bukowiecki, N., Hill, M., Gehrig, R., Zwicky, C. N., Lienemann, P.,
Hegedüs, F., Falkenberg, G., Weingartner, E., and Baltensperger, U.:
Trace metals in ambient air: Hourly size-segregated mass concentrations
determined by synchrotron-XRF, Environ. Sci. Technol., 39, 5754–5762, https://doi.org/10.1021/es048089m, 2005.
Bukowiecki, N., Lienemann, P., Hill, M., Furger, M., Richard, A., Amato, F.,
Prévôt, A. S. H., Baltensperger, U., Buchmann, B., and Gehrig, R.:
PM10 emission factors for non-exhaust particles generated by road
traffic in an urban street canyon and along a freeway in Switzerland, Atmos.
Environ., 44, 2330–2340, https://doi.org/10.1016/j.atmosenv.2010.03.039, 2010.
Burnett, R. T., Pope III, C. A., Ezzati, M., Olives, C., Lim, S. S., Mehta,
S., Shin, H. H., Singh, G., Hubbell, B., Brauer, M., Anderson, H. R., Smith,
K. R., Balmes, J. R., Bruce, N. G., Kan, H., Laden, F., Pruss-Ustun, A.,
Turner, M. C., Gapstur, S. M., Diver, W. R., and Cohen, A.: An integrated
risk function for estimating the global burden of disease attributable to
ambient fine particulate matter exposure, Environ. Health Perspect., 122,
397–403, https://doi.org/10.1289/ehp.1307049, 2014.
Carslaw, D. C. and Ropkins, K.: Openair – An R package for air quality data
analysis, Environ. Modell. Softw., 27–28, 52–61, https://doi.org/10.1016/j.envsoft.2011.09.008, 2012.
Carslaw, D. C., Beevers, S. D., Ropkins, K., and Bell, M. C.: Detecting and
quantifying aircraft and other on-airport contributions to ambient nitrogen
oxides in the vicinity of a large international airport, Atmos. Environ.,
40, 5424–5434, https://doi.org/10.1016/j.atmosenv.2006.04.062, 2006.
Cate, D. M., Noblitt, S. D., Volckens, J., and Henry, C. S.: Multiplexed
paper analytical device for quantification of metals using distance-based
detection, Lab Chip, 15, 2808–2818, https://doi.org/10.1039/c5lc00364d, 2015.
Celo, V., Dabek-Zlotorzynska, E., and McCurdy, M.: Chemical characterization
of exhaust emissions from selected Canadian marine vessels: the case of
trace metals and lanthanoids, Environ. Sci. Technol., 49, 5220–5226, https://doi.org/10.1021/acs.est.5b00127, 2015.
Cesari, D., Genga, A., Ielpo, P., Siciliano, M., Mascolo, G., Grasso, F. M.,
and Contini, D.: Source apportionment of PM2.5 in the
harbour-industrial area of Brindisi (Italy): Identification and estimation
of the contribution of in-port ship emissions, Sci. Total Environ., 497–498,
392–400, https://doi.org/10.1016/j.scitotenv.2014.08.007, 2014.
Chang, Y., Zou, Z., Deng, C., Huang, K., Collett, J. L., Lin, J., and Zhuang,
G.: The importance of vehicle emissions as a source of atmospheric ammonia in
the megacity of Shanghai, Atmos. Chem. Phys., 16, 3577–3594,
https://doi.org/10.5194/acp-16-3577-2016, 2016.
Chang, Y., Deng, C., Cao, F., Cao, C., Zou, Z., Liu, S., Lee, X., Li, J.,
Zhang, G., and Zhang, Y.: Assessment of carbonaceous aerosols in Shanghai,
China – Part 1: long-term evolution, seasonal variations, and meteorological
effects, Atmos. Chem. Phys., 17, 9945–9964,
https://doi.org/10.5194/acp-17-9945-2017, 2017.
Charrier, J. G. and Anastasio, C.: On dithiothreitol (DTT) as a measure of
oxidative potential for ambient particles: evidence for the importance of
soluble transition metals, Atmos. Chem. Phys., 12, 9321–9333,
https://doi.org/10.5194/acp-12-9321-2012, 2012.
Chen, B., Stein, A. F., Castell, N., Gonzalez-Castanedo, Y., Sanchez de la
Campa, A. M., and de la Rosa, J. D.: Modeling and evaluation of urban
pollution events of atmospheric heavy metals from a large Cu-smelter, Sci.
Total Environ., 539, 17–25, https://doi.org/10.1016/j.scitotenv.2015.08.117, 2016.
Chen, L. W. A., Watson, J. G., Chow, J. C., and Magliano, K. L.: Quantifying
PM2.5 source contributions for the San Joaquin Valley with multivariate
receptor models, Environ. Sci. Technol., 41, 2818–2826,
https://doi.org/10.1021/es0525105, 2007.
Cooper, J. A., Petterson, K., Geiger, A., Siemers, A., and Rupprecht, B.:
Guide for developing a multi-metals, fenceline monitoring plan for fugitive
emissions using X-ray based monitors, Cooper Environmental Services,
Portland, Oregon, 1–42, 2010.
Dabek-Zlotorzynska, E., Dann, T. F., Kalyani Martinelango, P., Celo, V.,
Brook, J. R., Mathieu, D., Ding, L., and Austin, C. C.: Canadian National Air
Pollution Surveillance (NAPS) PM2.5 speciation program: Methodology and
PM2.5 chemical composition for the years 2003–2008, Atmos. Environ.,
45, 673–686, https://doi.org/10.1016/j.atmosenv.2010.10.024, 2011.
Dall'Osto, M., Querol, X., Amato, F., Karanasiou, A., Lucarelli, F., Nava,
S., Calzolai, G., and Chiari, M.: Hourly elemental concentrations in
PM2.5 aerosols sampled simultaneously at urban background and road site
during SAPUSS – diurnal variations and PMF receptor modelling, Atmos. Chem.
Phys., 13, 4375–4392, https://doi.org/10.5194/acp-13-4375-2013, 2013.
Dall'Osto, M., Beddows, D. C. S., Harrison, R. M., and Onat, B.: Fine iron
aerosols are internally mixed with nitrate in the urban European atmosphere,
Environ. Sci. Technol., 50, 4212–4220, https://doi.org/10.1021/acs.est.6b01127, 2016.
DeCarlo, P. F., Kimmel, J. R., Trimborn, A., Northway, M. J., Jayne, J. T.,
Aiken, A. C., Gonin, M., Fuhrer, K., Horvath, T., Docherty, K. S., Worsnop,
D. R., and Jimenez, J. L.: Field-deployable, high-resolution, time-of-flight
aerosol mass spectrometer, Anal. Chem., 78, 8281–8289,
https://doi.org/10.1021/ac061249n, 2006.
Duan, J. and Tan, J.: Atmospheric heavy metals and arsenic in China:
Situation, sources and control policies, Atmos. Environ., 74, 93–101,
https://doi.org/10.1016/j.atmosenv.2013.03.031, 2013.
Duce, R. A. and Hoffman, G. L.: Atmospheric vanadium transport to the ocean,
Atmos. Environ., 10, 989–996, https://doi.org/10.1016/0004-6981(76)90207-9, 1976.
Fan, Q., Zhang, Y., Ma, W., Ma, H., Feng, J., Yu, Q., Yang, X., Ng, S. K. W.,
Fu, Q., and Chen, L.: Spatial and seasonal dynamics of ship emissions over
the Yangtze River Delta and East China Sea and their potential environmental
influence, Environ. Sci. Technol., 50, 1322–1329,
https://doi.org/10.1021/acs.est.5b03965, 2016.
Fang, T., Guo, H., Verma, V., Peltier, R. E., and Weber, R. J.: PM2.5
water-soluble elements in the southeastern United States: automated
analytical method development, spatiotemporal distributions, source
apportionment, and implications for heath studies, Atmos. Chem. Phys., 15,
11667–11682, https://doi.org/10.5194/acp-15-11667-2015, 2015.
Fergusson, J. E.: The heavy elements: Chemistry, environmental impact and
health effects, Pergamon Press, Oxford, UK, 614 pp., 1990.
Furger, M., Minguillón, M. C., Yadav, V., Slowik, J. G., Hüglin, C.,
Fröhlich, R., Petterson, K., Baltensperger, U., and Prévôt, A. S. H.:
Elemental composition of ambient aerosols measured with high temporal
resolution using an online XRF spectrometer, Atmos. Meas. Tech., 10,
2061–2076, https://doi.org/10.5194/amt-10-2061-2017, 2017.
Geagea, M. L., Stille, P., Millet, M., and Perrone, T.: REE characteristics
and Pb, Sr and Nd isotopic compositions of steel plant emissions, Sci. Total
Environ., 373, 404–419, https://doi.org/10.1016/j.scitotenv.2006.11.011, 2007.
Gross, D. S., Gälli, M. E., Silva, P. J., and Prather, K. A.: Relative
sensitivity factors for alkali metal and ammonium cations in single-particle
aerosol time-of-flight mass spectra, Anal. Chem., 72, 416–422,
https://doi.org/10.1021/ac990434g, 2000.
Han, T., Qiao, L., Zhou, M., Qu, Y., Du, J., Liu, X., Lou, S., Chen, C.,
Wang, H., Zhang, F., Yu, Q., and Wu, Q.: Chemical and optical properties of
aerosols and their interrelationship in winter in the megacity Shanghai of
China, J. Environ. Sci., 27, 59–69, https://doi.org/10.1016/j.jes.2014.04.018, 2015.
Harrison, R. M., Jones, A. M., Gietl, J., Yin, J., and Green, D. C.:
Estimation of the contributions of brake dust, tire wear, and resuspension to
nonexhaust traffic particles derived from atmospheric measurements, Environ.
Sci. Technol., 46, 6523–6529, https://doi.org/10.1021/es300894r, 2012.
Healy, R. M., Hellebust, S., Kourtchev, I., Allanic, A., O'Connor, I. P.,
Bell, J. M., Healy, D. A., Sodeau, J. R., and Wenger, J. C.: Source
apportionment of PM2.5 in Cork Harbour, Ireland using a combination of
single particle mass spectrometry and quantitative semi-continuous
measurements, Atmos. Chem. Phys., 10, 9593–9613,
https://doi.org/10.5194/acp-10-9593-2010, 2010.
Hjortenkrans, D. S. T., Bergbäck, B. G., and Häggerud, A. V.: Metal
emissions from brake linings and tires: Case studies of Stockholm, Sweden
1995/1998 and 2005, Environ. Sci. Technol., 41, 5224–5230,
https://doi.org/10.1021/es070198o, 2007.
Holden, P. A., Gardea-Torresdey, J. L., Klaessig, F., Turco, R. F., Mortimer,
M., Hund-Rinke, K., Cohen Hubal, E. A., Avery, D., Barceló, D., Behra,
R., Cohen, Y., Deydier-Stephan, L., Ferguson, P. L., Fernandes, T. F., Herr
Harthorn, B., Henderson, W. M., Hoke, R. A., Hristozov, D., Johnston, J. M.,
Kane, A. B., Kapustka, L., Keller, A. A., Lenihan, H. S., Lovell, W., Murphy,
C. J., Nisbet, R. M., Petersen, E. J., Salinas, E. R., Scheringer, M.,
Sharma, M., Speed, D. E., Sultan, Y., Westerhoff, P., White, J. C., Wiesner,
M. R., Wong, E. M., Xing, B., Steele Horan, M., Godwin, H. A., and Nel, A.
E.: Considerations of environmentally relevant test conditions for improved
evaluation of ecological hazards of engineered nanomaterials, Environ. Sci.
Technol., 50, 6124–6145, https://doi.org/10.1021/acs.est.6b00608, 2016.
Honda, T., Eliot, M. N., Eaton, C. B., Whitsel, E., Stewart, J. D., Mu, L.,
Suh, H., Szpiro, A., Kaufman, J. D., Vedal, S., and Wellenius, G. A.:
Long-term exposure to residential ambient fine and coarse particulate matter
and incident hypertension in post-menopausal women, Environ. Int., 105,
79–85, https://doi.org/10.1016/j.envint.2017.05.009, 2017.
Hu, X., Zhang, Y., Ding, Z., Wang, T., Lian, H., Sun, Y., and Wu, J.:
Bioaccessibility and health risk of arsenic and heavy metals (Cd, Co, Cr, Cu,
Ni, Pb, Zn and Mn) in TSP and PM2.5 in Nanjing, China, Atmos. Environ.,
57, 146–152, https://doi.org/10.1016/j.atmosenv.2012.04.056, 2012.
Huang, C., Chen, C. H., Li, L., Cheng, Z., Wang, H. L., Huang, H. Y.,
Streets, D. G., Wang, Y. J., Zhang, G. F., and Chen, Y. R.: Emission
inventory of anthropogenic air pollutants and VOC species in the Yangtze
River Delta region, China, Atmos. Chem. Phys., 11, 4105–4120,
https://doi.org/10.5194/acp-11-4105-2011, 2011.
Huang, K., Zhuang, G., Lin, Y., Wang, Q., Fu, J. S., Fu, Q., Liu, T., and
Deng, C.: How to improve the air quality over megacities in China: pollution
characterization and source analysis in Shanghai before, during, and after
the 2010 World Expo, Atmos. Chem. Phys., 13, 5927–5942,
https://doi.org/10.5194/acp-13-5927-2013, 2013.
Huang, W., Cao, J., Tao, Y., Dai, L., Lu, S.-E., Hou, B., Wang, Z., and Zhu,
T.: Seasonal variation of chemical species associated with short-term
mortality effects of PM2.5 in Xi'an, a central city in China, Am. J.
Epidemiol., 175, 556–566, https://doi.org/10.1093/aje/kwr342, 2012.
Hueglin, C., Gehrig, R., Baltensperger, U., Gysel, M., Monn, C., and Vonmont,
H.: Chemical characterisation of PM2.5, PM10 and coarse particles
at urban, near-city and rural sites in Switzerland, Atmos. Environ., 39,
637–651, https://doi.org/10.1016/j.atmosenv.2004.10.027, 2005.
Hope, B. K.: A global biogeochemical budget for vanadium, Sci. Total
Environ., 141, 1–10, https://doi.org/10.1016/0048-9697(94)90012-4, 1994.
Iyengar, V. and Woittiez, J.: Trace elements in human clinical specimens:
evaluation of literature data to identify reference values, Clin. Chem., 34,
474–481, 1988.
Jeong, C.-H., Wang, J. M., and Evans, G. J.: Source Apportionment of Urban
Particulate Matter using Hourly Resolved Trace Metals, Organics, and
Inorganic Aerosol Components, Atmos. Chem. Phys. Discuss.,
https://doi.org/10.5194/acp-2016-189, 2016.
John, D. H.: “Heavy metals”-a meaningless term?, Pure Appl. Chem., 74,
793–807, https://doi.org/10.1351/pac200274050793, 2002.
Jomova, K. and Valko, M.: Advances in metal-induced oxidative stress and
human disease, Toxicol., 283, 65–87, https://doi.org/10.1016/j.tox.2011.03.001, 2011.
Karanasiou, A.: Road dust emission sources and assessment of street washing
effect, Aerosol Air Qual. Res., 14, 734–743, https://doi.org/10.4209/aaqr.2013.03.0074,
2014.
Karanasiou, A., Moreno, T., Amato, F., Lumbreras, J., Narros, A., Borge, R.,
Tobías, A., Boldo, E., Linares, C., Pey, J., Reche, C., Alastuey, A.,
and Querol, X.: Road dust contribution to PM levels – Evaluation of the
effectiveness of street washing activities by means of Positive Matrix
Factorization, Atmos. Environ., 45, 2193–2201,
https://doi.org/10.1016/j.atmosenv.2011.01.067, 2011.
Karanasiou, A., Moreno, T., Amato, F., Tobías, A., Boldo, E., Linares,
C., Lumbreras, J., Borge, R., Alastuey, A., and Querol, X.: Variation of
PM2.5 concentrations in relation to street washing activities, Atmos.
Environ., 54, 465–469, https://doi.org/10.1016/j.atmosenv.2012.02.006, 2012.
Kastury, F., Smith, E., and Juhasz, A. L.: A critical review of approaches
and limitations of inhalation bioavailability and bioaccessibility of
metal(loid)s from ambient particulate matter or dust, Sci. Total Environ.,
574, 1054–1074, https://doi.org/10.1016/j.scitotenv.2016.09.056, 2017.
Kim, E. and Hopke, P. K.: Comparison between sample-species specific
uncertainties and estimated uncertainties for the source apportionment of the
speciation trends network data, Atmos. Environ., 41, 567–575,
https://doi.org/10.1016/j.atmosenv.2006.08.023, 2007.
Kim, E., Hopke, P. K., and Qin, Y.: Estimation of organic carbon blank values
and error structures of the speciation trends network data for source
apportionment, J. Air Waste Manage. Assoc., 55, 1190–1199,
https://doi.org/10.1080/10473289.2005.10464705, 2005.
Kim, K. H., Kabir, E., and Jahan, S. A.: A review on the distribution of Hg
in the environment and its human health impacts, J. Hazard. Mater., 306,
376–385, https://doi.org/10.1016/j.jhazmat.2015.11.031, 2016.
Kloog, I., Ridgway, B., Koutrakis, P., Coull, B. A., and Schwartz, J. D.:
Long- and short-term exposure to PM2.5 and mortality: Using novel
exposure models, Epidemiol., 24, 555–561, https://doi.org/10.1097/EDE.0b013e318294beaa,
2013.
Kuhns, H., Etyemezian, V., Green, M., Hendrickson, K., McGown, M., Barton,
K., and Pitchford, M.: Vehicle-based road dust emission measurement-Part II:
Effect of precipitation, wintertime road sanding, and street sweepers on
inferred PM10 emission potentials from paved and unpaved roads, Atmos.
Environ., 37, 4573–4582, https://doi.org/10.1016/S1352-2310(03)00529-6, 2003.
Leung, A. O. W., Duzgoren-Aydin, N. S., Cheung, K. C., and Wong, M. H.: Heavy
metals concentrations of surface dust from e-waste recycling and its human
health implications in Southeast China, Environ. Sci. Technol., 42,
2674–2680, https://doi.org/10.1021/es071873x, 2008.
Li, H., Wang, J., Wang, Q., Tian, C., Qian, X., and Leng, X.: Magnetic
properties as a proxy for predicting fine-particle-bound heavy metals in a
support vector machine approach, Environ. Sci. Technol., 51, 6927–6935, https://doi.org/10.1021/acs.est.7b00729, 2017.
Lin, Y.-C., Tsai, C.-J., Wu, Y.-C., Zhang, R., Chi, K.-H., Huang, Y.-T., Lin,
S.-H., and Hsu, S.-C.: Characteristics of trace metals in traffic-derived
particles in Hsuehshan Tunnel, Taiwan: size distribution, potential source,
and fingerprinting metal ratio, Atmos. Chem. Phys., 15, 4117–4130,
https://doi.org/10.5194/acp-15-4117-2015, 2015.
Litter, M. I.: Heterogeneous photocatalysis: Transition metal ions in
photocatalytic systems, Appl. Catal. B-Environ., 23, 89–114,
https://doi.org/10.1016/S0926-3373(99)00069-7, 1999.
Liu, S., Triantis, K., and Zhang, L.: The design of an urban roadside
automatic sprinkling system: mitigation of PM2.5−10 in ambient air in
megacities, Chinese J. Engineering, 12, https://doi.org/10.1155/2014/618109,
2014.
Liu, Z., Hu, B., Wang, L., Wu, F., Gao, W., and Wang, Y.: Seasonal and
diurnal variation in particulate matter (PM10 and PM2.5) at an
urban site of Beijing: Analyses from a 9-year study, Environ. Sci. Pollut.
Res. Int., 22, 627–642, https://doi.org/10.1007/s11356-014-3347-0, 2015.
Liu, Z., Lu, X., Feng, J., Fan, Q., Zhang, Y., and Yang, X.: Influence of
ship emissions on urban air quality: A comprehensive study using highly
time-resolved online measurements and numerical simulation in Shanghai,
Environ. Sci. Technol., 51, 202–211, https://doi.org/10.1021/acs.est.6b03834, 2017.
Lough, G. C., Schauer, J. J., Park, J. S., Shafer, M. M., DeMinter, J. T.,
and Weinstein, J. P.: Emissions of metals associated with motor vehicle
roadways, Environ. Sci. Technol., 39, 826–836, https://doi.org/10.1021/es048715f, 2005.
Lu, S., Yao, Z., Chen, X., Wu, M., Sheng, G., Fu, J., and Paul, D.: The
relationship between physicochemical characterization and the potential
toxicity of fine particulates (PM2.5) in Shanghai atmosphere, Atmos.
Environ., 42, 7205–7214, https://doi.org/10.1016/j.atmosenv.2008.07.030, 2008.
Maenhaut, W.: Present role of PIXE in atmospheric aerosol research, Nucl.
Instrum. Meth. B, 363, 86–91, https://doi.org/10.1016/j.nimb.2015.07.043, 2015.
Morawska, L. and Zhang, J.: Combustion sources of particles. 1. Health
relevance and source signatures, Chemos., 49, 1045–1058,
https://doi.org/10.1016/S0045-6535(02)00241-2, 2002.
Morman, S. A. and Plumlee, G. S.: The role of airborne mineral dusts in human
disease, Aeolian Res., 9, 203–212, https://doi.org/10.1016/j.aeolia.2012.12.001, 2013.
Murphy, D. M., Thomson, D. S., and Mahoney, M. J.: In situ measurements of
organics, meteoritic material, mercury, and other elements in aerosols at 5
to 19 kilometers, Science, 282, 1664–1669,
https://doi.org/10.1126/science.282.5394.1664, 1998.
Normile, D.: China's living laboratory in urbanization, Science, 319,
740–743, https://doi.org/10.1126/science.319.5864.740, 2008.
Norris, G., Duvall, R., Brown, S., and Bai, S.: EPA Positive Matrix
Factorization (PMF) 5.0 fundamentals and user guide prepared for the US
Environmental Protection Agency Office of Research and Development,
Washington, DC, 2014.
Olujimi, O. O., Oputu, O., Fatoki, O., Opatoyinbo, O. E., Aroyewun, O. A.,
and Baruani, J.: Heavy metals speciation and human health risk assessment at
an illegal gold mining site in Igun, Osun State, Nigeria, J. Heal. Pollut.,
5, 19–32, https://doi.org/10.5696/i2156-9614-5-8.19, 2015.
Paatero, P. and Tapper, U.: Positive matrix factorization: A non-negative
factor model with optimal utilization of error estimates of data values,
Environmetrics, 5, 111–126, https://doi.org/10.1002/env.3170050203, 1994.
Paatero, P., Eberly, S., Brown, S. G., and Norris, G. A.: Methods for
estimating uncertainty in factor analytic solutions, Atmos. Meas. Tech., 7,
781–797, https://doi.org/10.5194/amt-7-781-2014, 2014.
Pacyna, J. M. and Pacyna, E. G.: An assessment of global and regional
emissions of trace metals to the atmosphere from anthropogenic sources
worldwide, Environ. Rev., 9, 269–298, https://doi.org/10.1139/a01-012, 2001.
Pardo, M., Shafer, M. M., Rudich, A., Schauer, J. J., and Rudich, Y.: Single
exposure to near roadway particulate matter leads to confined inflammatory
and defense responses: Possible role of metals, Environ. Sci. Technol., 49,
8777–8785, https://doi.org/10.1021/acs.est.5b01449, 2015.
Park, S. S., Cho, S. Y., Jo, M. R., Gong, B. J., Park, J. S., and Lee, S. J.:
Field evaluation of a near-real time elemental monitor and identification of
element sources observed at an air monitoring supersite in Korea, Atmos.
Pollut. Res., 5, 119–128, https://doi.org/10.5094/apr.2014.015, 2014.
Perry, K. D., Cahill, T. A., Schnell, R. C., and Harris, J. M.: Long-range
transport of anthropogenic aerosols to the National Oceanic and Atmospheric
Administration baseline station at Mauna Loa Observatory, Hawaii, J. Geophys.
Res., 104, 18521–18533, https://doi.org/10.1029/1998JD100083, 1999.
Phillips-Smith, C., Jeong, C.-H., Healy, R. M., Dabek-Zlotorzynska, E., Celo,
V., Brook, J. R., and Evans, G.: Sources of particulate matter components in
the Athabasca oil sands region: investigation through a comparison of trace
element measurement methodologies, Atmos. Chem. Phys., 17, 9435–9449,
https://doi.org/10.5194/acp-17-9435-2017, 2017.
Polissar, V., Hopke, P., Paatero, P., Malm, W., and Sisler, J.: Atmospheric
aerosol over Alaska: 2. Elemental composition and sources, J. Geophys. Res.,
103, 19045–19057, https://doi.org/10.1029/98JD01212, 1998.
Pope III, C. A., Burnett, R. T., Thun, M. J., Calle, E. E., Krewski, D., Ito,
K., and Thurston, G. D.: Lung cancer, cardiopulmonary mortality, and
long-term exposure to fine particulate air pollution, J. Am. Med. Assoc.,
287, 1132–1141, 2002.
Pope III, C. A., Ezzati, M., and Dockery, D. W.: Fine-particulate air
pollution and life expectancy in the United States, New Engl. J. Med., 360,
376–386, https://doi.org/10.1056/NEJMsa0805646, 2009.
Qiao, L., Cai, J., Wang, H., Wang, W., Zhou, M., Lou, S., Chen, R., Dai, H.,
Chen, C., and Kan, H.: PM2.5 constituents and hospital emergency-room
visits in Shanghai, China, Environ. Sci. Technol., 48, 10406–10414,
https://doi.org/10.1021/es501305k, 2014.
Querol, X., Juan, R., Lopez-Soler, A., Fernandez-Turiel, J., and Ruiz, C. R.:
Mobility of trace elements from coal and combustion wastes, Fuel, 75,
821–838, https://doi.org/10.1016/0016-2361(96)00027-0, 1996.
Richard, A., Bukowiecki, N., Lienemann, P., Furger, M., Fierz, M.,
Minguillón, M. C., Weideli, B., Figi, R., Flechsig, U., Appel, K.,
Prévôt, A. S. H., and Baltensperger, U.: Quantitative sampling and
analysis of trace elements in atmospheric aerosols: impactor characterization
and Synchrotron-XRF mass calibration, Atmos. Meas. Tech., 3, 1473–1485,
https://doi.org/10.5194/amt-3-1473-2010, 2010.
Ridley, D. A., Heald, C. L., Kok, J. F., and Zhao, C.: An observationally
constrained estimate of global dust aerosol optical depth, Atmos. Chem.
Phys., 16, 15097–15117, https://doi.org/10.5194/acp-16-15097-2016, 2016.
Rubasinghege, G., Elzey, S., Baltrusaitis, J., Jayaweera, P. M., and
Grassian, V. H.: Reactions on atmospheric dust particles: Surface
photochemistry and size-dependent nanoscale redox chemistry, J. Phys. Chem.
Let., 1, 1729–1737, https://doi.org/10.1021/jz100371d, 2010a.
Rubasinghege, G., Lentz, R. W., Scherer, M. M., and Grassian, V. H.:
Simulated atmospheric processing of iron oxyhydroxide minerals at low pH:
Roles of particle size and acid anion in iron dissolution, P. Natl. Acad.
Sci. USA, 107, 6628–6633, https://doi.org/10.1073/pnas.0910809107, 2010b.
Saffari, A., Daher, N., Shafer, M. M., Schauer, J. J., and Sioutas, C.:
Global perspective on the oxidative potential of airborne particulate matter:
A synthesis of research findings, Environ. Sci. Technol., 48, 7576–7583,
https://doi.org/10.1021/es500937x, 2014.
Seigneur, C. and Constantinou, E.: Chemical kinetic mechanism for atmospheric
chromium, Environ. Sci. Technol., 29, 222–231, https://doi.org/10.1021/es00001a029,
1995.
Shafer, M. M., Toner, B. M., Overdier, J. T., Schauer, J. J., Fakra, S. C.,
Hu, S., Herner, J. D., and Ayala, A.: Chemical speciation of vanadium in
particulate matter emitted from diesel vehicles and urban atmospheric
aerosols, Environ. Sci. Technol., 46, 189–195, https://doi.org/10.1021/es200463c, 2012.
Shah, A. S. V., Langrish, J. P., Nair, H., McAllister, D. A., Hunter, A. L.,
Donaldson, K., Newby, D. E., and Mills, N. L.: Global association of air
pollution and heart failure: A systematic review and meta-analysis, Lancet,
382, 1039–1048, https://doi.org/10.1016/s0140-6736(13)60898-3, 2013.
Shu, J., Dearing, J. A., Morse, A. P., Yu, L., and Yuan, N.: Determining the
sources of atmospheric particles in Shanghai, China, from magnetic and
geochemical properties, Atmos. Environ., 35, 2615–2625,
https://doi.org/10.1016/S1352-2310(00)00454-4, 2001.
Sofowote, U. M., Su, Y., Dabek-Zlotorzynska, E., Rastogi, A. K., Brook, J.,
and Hopke, P. K.: Sources and temporal variations of constrained PMF factors
obtained from multiple-year receptor modeling of ambient PM2.5 data from
five speciation sites in Ontario, Canada, Atmos. Environ., 108, 140–150,
https://doi.org/10.1016/j.atmosenv.2015.02.055, 2015.
Strak, M., Janssen, N. A., Godri, K. J., Gosens, I., Mudway, I. S., Cassee,
F. R., Lebret, E., Kelly, F. J., Harrison, R. M., Brunekreef, B., Steenhof,
M., and Hoek, G.: Respiratory health effects of airborne particulate matter:
The role of particle size, composition, and oxidative potential-the RAPTES
project, Environ. Health Perspect., 120, 1183–1189,
https://doi.org/10.1289/ehp.1104389, 2012.
Streit, B.: Lexikon der Okotoxikologie, Wiley-VCH, Weinheim, Germany, 1991.
Strickland, M. J., Hao, H., Hu, X., Chang, H. H., Darrow, L. A., and Liu, Y.:
Pediatric emergency visits and short-term changes in PM2.5
concentrations in the U.S. State of Georgia, Environ. Health Perspect., 124,
690–696, https://doi.org/10.1289/ehp.1509856, 2016.
Suess, D. T.: Single particle mass spectrometry combustion source
characterization and atmospheric apportionment of vehicular, coal and
biofuel exhaust emissions, PhD, Chemistry, University of California,
Riverside, CA, USA, 2002.
Tang, M., Huang, X., Lu, K., Ge, M., Li, Y., Cheng, P., Zhu, T., Ding, A.,
Zhang, Y., Gligorovski, S., Song, W., Ding, X., Bi, X., and Wang, X.:
Heterogeneous reactions of mineral dust aerosol: implications for
tropospheric oxidation capacity, Atmos. Chem. Phys., 17, 11727–11777,
https://doi.org/10.5194/acp-17-11727-2017, 2017.
Tao, L., Fairley, D., Kleeman, M. J., and Harley, R. A.: Effects of switching
to lower sulfur marine fuel oil on air quality in the San Francisco Bay area,
Environ. Sci. Technol., 47, 10171–10178, https://doi.org/10.1021/es401049x, 2013.
Tchounwou, P. B., Yedjou, C. G., Patlolla, A. K., and Sutton, D. J.: Heavy
metals toxicity and the environment, in: Molecular, Clinical and
Environmental Toxicology, Springer, Basel, Switzerland, 133–164, 2012.
Thorpe, A. and Harrison, R. M.: Sources and properties of non-exhaust
particulate matter from road traffic: A review, Sci. Total Environ., 400,
270–282, https://doi.org/10.1016/j.scitotenv.2008.06.007, 2008.
Tian, H. Z., Zhu, C. Y., Gao, J. J., Cheng, K., Hao, J. M., Wang, K., Hua, S.
B., Wang, Y., and Zhou, J. R.: Quantitative assessment of atmospheric
emissions of toxic heavy metals from anthropogenic sources in China:
Historical trend, spatial distribution, uncertainties, and control policies,
Atmos. Chem. Phys., 15, 10127–10147, https://doi.org/10.5194/acp-15-10127-2015, 2015.
Traversi, R., Becagli, S., Calzolai, G., Chiari, M., Giannoni, M., Lucarelli,
F., Nava, S., Rugi, F., Severi, M., and Udisti, R.: A comparison between PIXE
and ICP-AES measurements of metals in aerosol particulate collected in urban
and marine sites in Italy, Nucl. Instrum. Meth. B, 318, 130–134,
https://doi.org/10.1016/j.nimb.2013.05.102, 2014.
Usher, C. R., Michel, A. E., and Grassian, V. H.: Reactions on mineral dust,
Chem. Rev., 103, 4883–4940, https://doi.org/10.1021/cr020657y, 2003.
Verma, V., Shafer, M. M., Schauer, J. J., and Sioutas, C.: Contribution of
transition metals in the reactive oxygen species activity of PM emissions
from retrofitted heavy-duty vehicles, Atmos. Environ., 44, 5165–5173,
https://doi.org/10.1016/j.atmosenv.2010.08.052, 2010.
Viana, M., Amato, F., Alastuey, A., Querol, X., Moreno, T., García Dos
Santos, S., Herce, M. D., and Fernández-Patier, R.: Chemical tracers of
particulate emissions from commercial shipping, Environ. Sci. Technol., 43,
7472–7477, https://doi.org/10.1021/es901558t, 2009.
Visser, S., Slowik, J. G., Furger, M., Zotter, P., Bukowiecki, N., Canonaco,
F., Flechsig, U., Appel, K., Green, D. C., Tremper, A. H., Young, D. E.,
Williams, P. I., Allan, J. D., Coe, H., Williams, L. R., Mohr, C., Xu, L.,
Ng, N. L., Nemitz, E., Barlow, J. F., Halios, C. H., Fleming, Z. L.,
Baltensperger, U., and Prévôt, A. S. H.: Advanced source apportionment
of size-resolved trace elements at multiple sites in London during winter,
Atmos. Chem. Phys., 15, 11291–11309,
https://doi.org/10.5194/acp-15-11291-2015, 2015a.
Visser, S., Slowik, J. G., Furger, M., Zotter, P., Bukowiecki, N., Dressler,
R., Flechsig, U., Appel, K., Green, D. C., Tremper, A. H., Young, D. E.,
Williams, P. I., Allan, J. D., Herndon, S. C., Williams, L. R., Mohr, C., Xu,
L., Ng, N. L., Detournay, A., Barlow, J. F., Halios, C. H., Fleming, Z. L.,
Baltensperger, U., and Prévôt, A. S. H.: Kerb and urban increment of
highly time-resolved trace elements in PM10, PM2.5 and PM1.0
winter aerosol in London during ClearfLo 2012, Atmos. Chem. Phys., 15,
2367–2386, https://doi.org/10.5194/acp-15-2367-2015, 2015b.
Wang, F., Chen, Y., Meng, X., Fu, J., and Wang, B.: The contribution of
anthropogenic sources to the aerosols over East China Sea, Atmos. Environ.,
127, 22–33, https://doi.org/10.1016/j.atmosenv.2015.12.002, 2016.
Wang, J., Hu, Z., Chen, Y., Chen, Z., and Xu, S.: Contamination
characteristics and possible sources of PM10 and PM2.5 in different
functional areas of Shanghai, China, Atmos. Environ., 68, 221–229,
https://doi.org/10.1016/j.atmosenv.2012.10.070, 2013.
Wang, Q., He, X., Huang, X. H. H., Griffith, S. M., Feng, Y., Zhang, T.,
Zhang, Q., Wu, D., and Yu, J. Z.: Impact of secondary organic aerosol tracers
on tracer-based source apportionment of organic carbon and PM2.5: A case
study in the Pearl River Delta, China, ACS Earth Space Chem., 1, 562–571,
https://doi.org/10.1021/acsearthspacechem.7b00088, 2017.
Wang, X., Bi, X., Sheng, G., and Fu, J.: Hospital indoor PM10/PM2.5
and associated trace elements in Guangzhou, China, Sci. Total Environ., 366,
124–135, https://doi.org/10.1016/j.scitotenv.2005.09.004, 2006.
Wang, X., Williams, B. J., Wang, X., Tang, Y., Huang, Y., Kong, L., Yang, X.,
and Biswas, P.: Characterization of organic aerosol produced during
pulverized coal combustion in a drop tube furnace, Atmos. Chem. Phys., 13,
10919–10932, https://doi.org/10.5194/acp-13-10919-2013, 2013.
West, J. J., Cohen, A., Dentener, F., Brunekreef, B., Zhu, T., Armstrong, B.,
Bell, M. L., Brauer, M., Carmichael, G., Costa, D. L., Dockery, D. W.,
Kleeman, M., Krzyzanowski, M., Kunzli, N., Liousse, C., Lung, S. C., Martin,
R. V., Poschl, U., Pope III, C. A., Roberts, J. M., Russell, A. G., and
Wiedinmyer, C.: What we breathe impacts our health: Improving understanding
of the link between air pollution and health, Environ. Sci. Technol., 50,
4895–4904, https://doi.org/10.1021/acs.est.5b03827, 2016.
WHO: (World Health Organization) Air quality guidelines – global update 2005,
available at:
http://www.who.int/phe/health_topics/outdoorair/outdoorair_aqg/en/
(last access: 7 July 2017), 2005.
Wu, Q. R., Wang, S. X., Zhang, L., Song, J. X., Yang, H., and Meng, Y.:
Update of mercury emissions from China's primary zinc, lead and copper
smelters, 2000–2010, Atmos. Chem. Phys., 12, 11153–11163,
https://doi.org/10.5194/acp-12-11153-2012, 2012.
Yanca, C. A., Barth, D. C., Petterson, K. A., Nakanishi, M. P., Cooper, J.
A., Johnsen, B. E., Lambert, R. H., and Bivins, D. G.: Validation of three
new methods for determination of metal emissions using a modified
Environmental Protection Agency Method 301, J. Air Waste Manage. Assoc., 56,
1733–1742, https://doi.org/10.1080/10473289.2006.10464578, 2006.
Yu, S.: Water spray geoengineering to clean air pollution for mitigating haze
in China's cities, Environ. Chem. Lett., 12, 109–116,
https://doi.org/10.1007/s10311-013-0444-0, 2014.
Zhang, X., Hecobian, A., Zheng, M., Frank, N. H., and Weber, R. J.: Biomass
burning impact on PM2.5 over the southeastern US during 2007:
integrating chemically speciated FRM filter measurements, MODIS fire counts
and PMF analysis, Atmos. Chem. Phys., 10, 6839–6853,
https://doi.org/10.5194/acp-10-6839-2010, 2010.
Zhao, M., Zhang, Y., Ma, W., Fu, Q., Yang, X., Li, C., Zhou, B., Yu, Q., and
Chen, L.: Characteristics and ship traffic source identification of air
pollutants in China's largest port, Atmos. Environ., 64, 277–286,
https://doi.org/10.1016/j.atmosenv.2012.10.007, 2013.
Zhen, L., Li, M., Hu, Z., Lv, W., and Zhao, X.: The effects of emission
control area regulations on cruise shipping, Transport. Res. D-Tr. E., 62,
47–63, https://doi.org/10.1016/j.trd.2018.02.005, 2018.
Zheng, J., Tan, M., Shibata, Y., Tanaka, A., Li, Y., Zhang, G., Zhang, Y.,
and Shan, Z.: Characteristics of lead isotope ratios and elemental
concentrations in PM10 fraction of airborne particulate matter in
Shanghai after the phase-out of leaded gasoline, Atmos. Environ., 38,
1191–1200, https://doi.org/10.1016/j.atmosenv.2003.11.004, 2004.
Short summary
We continuously performed a one-year and hourly-resolved measurement of 18 atmospheric elements in PM2.5 in Shanghai megacity. Here our high time-resolution observations over a long-term period provide baseline data with high detail, which are of great use for examining acute exposure of morbidity and mortality risk in association with PM2.5 metal species in China's megacities.
We continuously performed a one-year and hourly-resolved measurement of 18 atmospheric elements...
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