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Abstracted/indexedSpecial issue
Short summary
This study has identified the major contributors to the observed high HONO levels during a severe winter pollution episode and highlighted the importance of HONO chemistry in the combined photochemical and haze pollution in a subtropical region. It also highlighted the critical need to include and update HONO sources in regional air quality models in order to predict ozone and other secondary pollutants better during heavy pollution events in southern China and similar regions.
This study has identified the major contributors to the observed high HONO levels during a...
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ACP | Articles | Volume 19, issue 1
Atmos. Chem. Phys., 19, 1–14, 2019
https://doi.org/10.5194/acp-19-1-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue: Regional transport and transformation of air pollution in...
Atmos. Chem. Phys., 19, 1–14, 2019
https://doi.org/10.5194/acp-19-1-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article 02 Jan 2019
Research article | 02 Jan 2019
The significant contribution of HONO to secondary pollutants during a severe winter pollution event in southern China
Xiao Fu et al.
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Mingjin Tang, Chak K. Chan, Yong Jie Li, Hang Su, Qingxin Ma, Zhijun Wu, Guohua Zhang, Zhe Wang, Maofa Ge, Min Hu, Hong He, and Xinming Wang
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Weihao Wang, Zhe Wang, Chuan Yu, Men Xia, Xiang Peng, Yan Zhou, Dingli Yue, Yubo Ou, and Tao Wang
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Atmos. Chem. Phys., 18, 11261–11275, https://doi.org/10.5194/acp-18-11261-2018, https://doi.org/10.5194/acp-18-11261-2018, 2018
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Liwei Wang, Xinfeng Wang, Rongrong Gu, Hao Wang, Lan Yao, Liang Wen, Fanping Zhu, Weihao Wang, Likun Xue, Lingxiao Yang, Keding Lu, Jianmin Chen, Tao Wang, Yuanghang Zhang, and Wenxing Wang
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This study presents concentrations, variation characteristics, sources and secondary formations of nitrated phenols, a major component of brown carbon, in typical seasons at four sites in northern China. The results highlight the strong influences and contributions of anthropogenic activities, in particular coal combustion and the aging processes, to the atmospheric nitrated phenols in this region.
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Atmos. Chem. Phys., 17, 12361–12378, https://doi.org/10.5194/acp-17-12361-2017, https://doi.org/10.5194/acp-17-12361-2017, 2017
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This work addresses unclear roles of heterogeneous N2O5 reactions and chlorine activation processes in the polluted residual layer from a mountaintop measurement in northern China. The results revealed efficient ClNO2 production in the coal-fired plumes in this region, having large impacts on next-morning photochemistry. Fast heterogeneous N2O5 reactions dominate the nocturnal NOx loss and contribute to substantial nitrate formation, which may boost the haze pollution in northern China.
Li Zhang, Qinyi Li, Tao Wang, Ravan Ahmadov, Qiang Zhang, Meng Li, and Mengyao Lv
Atmos. Chem. Phys., 17, 9733–9750, https://doi.org/10.5194/acp-17-9733-2017, https://doi.org/10.5194/acp-17-9733-2017, 2017
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Little is known of the integrated impacts of HONO and ClNO2 on lower-tropospheric ozone so far. In this study, we updated WRF-Chem with the CBMZ_ReNOM module, which considers both the sources and chemistry of HONO and ClNO2. The revised model revealed that the two reactive nitrogen compounds significantly affected the oxidation capacity and ozone formation at the surface and within the lower troposphere over polluted regions and noticeably improved summertime O3 predictions over China.
Min Cui, Yingjun Chen, Yanli Feng, Cheng Li, Junyu Zheng, Chongguo Tian, Caiqing Yan, and Mei Zheng
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PM emitted from diesel vehicles has a severe impact on air quality and human health. However, characteristics of PM from diesel vehicles, particularly measured under real-world condition, are scarce. In this study, 6 excavators and 5 trucks were tested to characterize constituents of PM. PM emission factor (EFPM) and compositions were affected by fuel quality, operating modes and emission standards. Moreover, EFPM and risk of carcinogenic for excavators were 1.7 and 31 fold of those for trucks.
Jiaping Wang, Aki Virkkula, Yuan Gao, Shuncheng Lee, Yicheng Shen, Xuguang Chi, Wei Nie, Qiang Liu, Zheng Xu, Xin Huang, Tao Wang, Long Cui, and Aijun Ding
Atmos. Chem. Phys., 17, 2653–2671, https://doi.org/10.5194/acp-17-2653-2017, https://doi.org/10.5194/acp-17-2653-2017, 2017
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Multi-year observations at a coastal station in Hong Kong reveals that aerosol optical properties showed clear temporal variations according to the dominant sources of aerosols. LPDM modeling and correlation analysis gave similar signals about the freshness of aerosols during different seasons. Fresh emissions of particles from nearby cities and ship exhausts affected light optical properties and particle size in summer and aged air mass in winter caused larger variability of light extinction.
Yee Jun Tham, Zhe Wang, Qinyi Li, Hui Yun, Weihao Wang, Xinfeng Wang, Likun Xue, Keding Lu, Nan Ma, Birger Bohn, Xin Li, Simonas Kecorius, Johannes Größ, Min Shao, Alfred Wiedensohler, Yuanhang Zhang, and Tao Wang
Atmos. Chem. Phys., 16, 14959–14977, https://doi.org/10.5194/acp-16-14959-2016, https://doi.org/10.5194/acp-16-14959-2016, 2016
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This work addresses the unclear global significance of chlorine activation processes in the troposphere. The first high-quality measurement data set of ClNO2 in northern China revealed strong ClNO2 production in the residual layers, and demonstrated its significant effects on radical budget and ozone production. Our findings imply the widespread effects of ClNO2 over the polluted regions of northern China, which may increase photochemical and haze pollution.
Qinyi Li, Li Zhang, Tao Wang, Yee Jun Tham, Ravan Ahmadov, Likun Xue, Qiang Zhang, and Junyu Zheng
Atmos. Chem. Phys., 16, 14875–14890, https://doi.org/10.5194/acp-16-14875-2016, https://doi.org/10.5194/acp-16-14875-2016, 2016
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The regional distributions and impacts of N2O5 and ClNO2 remain poorly understood. To address the problem, we developed a chemical transport model further and conducted the first high-resolution simulation of the distributions of the two species. Our research demonstrated the significant impacts of the two gases on the lifetime of nitrogen oxides, secondary nitrate production and ozone formation in southern China and highlighted the necessity of considering this chemistry in air quality models.
Lei Sun, Likun Xue, Tao Wang, Jian Gao, Aijun Ding, Owen R. Cooper, Meiyun Lin, Pengju Xu, Zhe Wang, Xinfeng Wang, Liang Wen, Yanhong Zhu, Tianshu Chen, Lingxiao Yang, Yan Wang, Jianmin Chen, and Wenxing Wang
Atmos. Chem. Phys., 16, 10637–10650, https://doi.org/10.5194/acp-16-10637-2016, https://doi.org/10.5194/acp-16-10637-2016, 2016
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We compiled the available observations of surface O3 at Mt. Tai – the highest mountain in the North China Plain, and found a significant increase of O3 concenrations from 2003 to 2015. The observed O3 increase was mainly due to the increase of O3 precursors, especially VOCs. Our analysis shows that controlling NOx alone, in the absence of VOC controls, is not sufficient to reduce regional O3 levels in North China in a short period.
Likun Xue, Rongrong Gu, Tao Wang, Xinfeng Wang, Sandra Saunders, Donald Blake, Peter K. K. Louie, Connie W. Y. Luk, Isobel Simpson, Zheng Xu, Zhe Wang, Yuan Gao, Shuncheng Lee, Abdelwahid Mellouki, and Wenxing Wang
Atmos. Chem. Phys., 16, 9891–9903, https://doi.org/10.5194/acp-16-9891-2016, https://doi.org/10.5194/acp-16-9891-2016, 2016
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The chemical budgets and principal sources of ROx and NO3 radicals during a multi-day photochemical smog episode in Hong Kong are elucidated by an observation-constrained MCM model. NO3 was shown to be an important oxidant even during daytime in a pollution case when high aerosol loading attenuated the solar irradiation. This study suggests the potential important role of daytime NO3 chemistry in polluted atmospheres under conditions with the co-existence of abundant O3, NO2, VOCs, and aerosols.
L. K. Xue, S. M. Saunders, T. Wang, R. Gao, X. F. Wang, Q. Z. Zhang, and W. X. Wang
Geosci. Model Dev., 8, 3151–3162, https://doi.org/10.5194/gmd-8-3151-2015, https://doi.org/10.5194/gmd-8-3151-2015, 2015
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A detailed chemical mechanism including 205 reactions is developed for use in the Master Chemical Mechanism. With this new chlorine mechanism, it was found that the nocturnal formation of ClNO2 has high potential to perturb the next day's atmospheric photochemistry, by enhancing the radical production and cycling, VOC oxidation and O3 formation, in the polluted coastal environments.
T. Li, Y. Wang, W. J. Li, J. M. Chen, T. Wang, and W. X. Wang
Atmos. Chem. Phys., 15, 8987–9002, https://doi.org/10.5194/acp-15-8987-2015, https://doi.org/10.5194/acp-15-8987-2015, 2015
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Twelve trace elements in fine particles and clouds at a mountain site in southern China were investigated.
Long-range transport contributed the most to element concentrations, whereas the YRD and the area around Mt. Lushan exhibited the highest element solubility.
We demonstrated that cloud processing can enhance aerosol element solubility and increase sulfate concentration correspondingly, by irreversibly altering the morphology of metal particles in cloud droplet residues.
X. Fu, S. X. Wang, L. M. Ran, J. E. Pleim, E. Cooter, J. O. Bash, V. Benson, and J. M. Hao
Atmos. Chem. Phys., 15, 6637–6649, https://doi.org/10.5194/acp-15-6637-2015, https://doi.org/10.5194/acp-15-6637-2015, 2015
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In this study, we estimate, for the first time, the NH3 emission from the agricultural fertilizer application in China online using the bi-directional CMAQ model coupled to an agro-ecosystem model. Compared with previous researches, this method considers more influencing factors, such as meteorological fields, soil and the fertilizer application, and provides improved NH3 emission with higher spatial and temporal resolution.
L. K. Xue, T. Wang, J. Gao, A. J. Ding, X. H. Zhou, D. R. Blake, X. F. Wang, S. M. Saunders, S. J. Fan, H. C. Zuo, Q. Z. Zhang, and W. X. Wang
Atmos. Chem. Phys., 14, 13175–13188, https://doi.org/10.5194/acp-14-13175-2014, https://doi.org/10.5194/acp-14-13175-2014, 2014
J. F. Peng, M. Hu, Z. B. Wang, X. F. Huang, P. Kumar, Z. J. Wu, S. Guo, D. L. Yue, D. J. Shang, Z. Zheng, and L. Y. He
Atmos. Chem. Phys., 14, 10249–10265, https://doi.org/10.5194/acp-14-10249-2014, https://doi.org/10.5194/acp-14-10249-2014, 2014
S. X. Wang, B. Zhao, S. Y. Cai, Z. Klimont, C. P. Nielsen, T. Morikawa, J. H. Woo, Y. Kim, X. Fu, J. Y. Xu, J. M. Hao, and K. B. He
Atmos. Chem. Phys., 14, 6571–6603, https://doi.org/10.5194/acp-14-6571-2014, https://doi.org/10.5194/acp-14-6571-2014, 2014
Z. Cheng, S. Wang, X. Fu, J. G. Watson, J. Jiang, Q. Fu, C. Chen, B. Xu, J. Yu, J. C. Chow, and J. Hao
Atmos. Chem. Phys., 14, 4573–4585, https://doi.org/10.5194/acp-14-4573-2014, https://doi.org/10.5194/acp-14-4573-2014, 2014
X. Fu, S. X. Wang, Z. Cheng, J. Xing, B. Zhao, J. D. Wang, and J. M. Hao
Atmos. Chem. Phys., 14, 1239–1254, https://doi.org/10.5194/acp-14-1239-2014, https://doi.org/10.5194/acp-14-1239-2014, 2014
X. Wang, T. Wang, C. Yan, Y. J. Tham, L. Xue, Z. Xu, and Q. Zha
Atmos. Meas. Tech., 7, 1–12, https://doi.org/10.5194/amt-7-1-2014, https://doi.org/10.5194/amt-7-1-2014, 2014
Z. B. Wang, M. Hu, J. Y. Sun, Z. J. Wu, D. L. Yue, X. J. Shen, Y. M. Zhang, X. Y. Pei, Y. F. Cheng, and A. Wiedensohler
Atmos. Chem. Phys., 13, 12495–12506, https://doi.org/10.5194/acp-13-12495-2013, https://doi.org/10.5194/acp-13-12495-2013, 2013
Z. B. Wang, M. Hu, D. Mogensen, D. L. Yue, J. Zheng, R. Y. Zhang, Y. Liu, B. Yuan, X. Li, M. Shao, L. Zhou, Z. J. Wu, A. Wiedensohler, and M. Boy
Atmos. Chem. Phys., 13, 11157–11167, https://doi.org/10.5194/acp-13-11157-2013, https://doi.org/10.5194/acp-13-11157-2013, 2013
L. K. Xue, T. Wang, J. Gao, A. J. Ding, X. H. Zhou, D. R. Blake, X. F. Wang, S. M. Saunders, S. J. Fan, H. C. Zuo, Q. Z. Zhang, and W. X. Wang
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acpd-13-27243-2013, https://doi.org/10.5194/acpd-13-27243-2013, 2013
Revised manuscript not accepted
Z. B. Wang, M. Hu, Z. J. Wu, D. L. Yue, L. Y. He, X. F. Huang, X. G. Liu, and A. Wiedensohler
Atmos. Chem. Phys., 13, 10159–10170, https://doi.org/10.5194/acp-13-10159-2013, https://doi.org/10.5194/acp-13-10159-2013, 2013
L. K. Xue, T. Wang, H. Guo, D. R. Blake, J. Tang, X. C. Zhang, S. M. Saunders, and W. X. Wang
Atmos. Chem. Phys., 13, 8551–8567, https://doi.org/10.5194/acp-13-8551-2013, https://doi.org/10.5194/acp-13-8551-2013, 2013
Z. B. Wang, M. Hu, Z. J. Wu, D. L. Yue, J. Zheng, R. Y. Zhang, X. Y. Pei, P. Paasonen, M. Dal Maso, M. Boy, and A. Wiedensohler
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acpd-13-3419-2013, https://doi.org/10.5194/acpd-13-3419-2013, 2013
Revised manuscript not accepted
W. Nie, T. Wang, L. K. Xue, A. J. Ding, X. F. Wang, X. M. Gao, Z. Xu, Y. C. Yu, C. Yuan, Z. S. Zhou, R. Gao, X. H. Liu, Y. Wang, S. J. Fan, S. Poon, Q. Z. Zhang, and W. X. Wang
Atmos. Chem. Phys., 12, 11985–11995, https://doi.org/10.5194/acp-12-11985-2012, https://doi.org/10.5194/acp-12-11985-2012, 2012
Related subject area
Subject: Gases | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Rapid increase in summer surface ozone over the North China Plain during 2013–2019: a side effect of particulate matter reduction control?
Pan-Arctic surface ozone: modelling vs. measurements
Influence of aerosol copper on HO2 uptake: a novel parameterized equation
Role of ammonia in European air quality with changing land and ship emissions between 1990 and 2030
Discrepancies between MICS-Asia III simulation and observation for surface ozone in the marine atmosphere over the northwestern Pacific Asian Rim region
Correcting model biases of CO in East Asia: impact on oxidant distributions during KORUS-AQ
Quantifying the emission changes and associated air quality impacts during the COVID-19 pandemic on the North China Plain: a response modeling study
Do alternative inventories converge on the spatiotemporal representation of spring ammonia emissions in France?
Impacts of global NOx inversions on NO2 and ozone simulations
Quantifying sources of Brazil's CH4 emissions between 2010 and 2018 from satellite data
On the role of trend and variability in the hydroxyl radical (OH) in the global methane budget
Trends in global tropospheric hydroxyl radical and methane lifetime since 1850 from AerChemMIP
Estimation of rate coefficients for the reactions of O3 with unsaturated organic compounds for use in automated mechanism construction
Long-term historical trends in air pollutant emissions in Asia: Regional Emission inventory in ASia (REAS) version 3
The impact of weather patterns and related transport processes on aviation's contribution to ozone and methane concentrations from NOx emissions
Northwestward cropland expansion and growing urea-based fertilizer use enhanced NH3 emission loss in the contiguous United States
Evaluating China's fossil-fuel CO2 emissions from a comprehensive dataset of nine inventories
Increases in surface ozone pollution in China from 2013 to 2019: anthropogenic and meteorological influences
Meteorology-normalized impact of the COVID-19 lockdown upon NO2 pollution in Spain
Tropospheric ozone radiative forcing uncertainty due to pre-industrial fire and biogenic emissions
CRI-HOM: A novel chemical mechanism for simulating highly oxygenated organic molecules (HOMs) in global chemistry–aerosol–climate models
Photochemical environment over Southeast Asia primed for hazardous ozone levels with influx of nitrogen oxides from seasonal biomass burning
The impact of ship emissions on air quality and human health in the Gothenburg area – Part II: Scenarios for 2040
Attribution of ground-level ozone to anthropogenic and natural sources of nitrogen oxides and reactive carbon in a global chemical transport model
Characterizing sources of high surface ozone events in the southwestern US with intensive field measurements and two global models
Aircraft-based inversions quantify the importance of wetlands and livestock for Upper Midwest methane emissions
An inversion of NOx and non-methane volatile organic compound (NMVOC) emissions using satellite observations during the KORUS-AQ campaign and implications for surface ozone over East Asia
Atmospheric methane source and sink sensitivity analysis using Gaussian process emulation
Carbon and air pollutant emissions from China's cement industry 1990–2015: trends, evolution of technologies and drivers
Emission inventory of air pollutants and chemical speciation for specific anthropogenic sources based on local measurements in the Yangtze River Delta region, China
Influences of hydroxyl radicals (OH) on top-down estimates of the global and regional methane budgets
Evaluation of nitrogen oxides (NOx) sources and sinks and ozone production in Colombia and surrounding areas
The impact of biomass burning on upper tropospheric carbon monoxide: a study using MOCAGE global model and IAGOS airborne data
Improvement from the satellite-derived NOx emissions on air quality modeling and its effect on ozone and secondary inorganic aerosol formation in Yangtze River Delta, China
Temporal and spatial analysis of ozone concentrations in Europe based on timescale decomposition and a multi-clustering approach
Why is the Indo-Gangetic Plain the region with the largest NH3 column in the globe during pre-monsoon and monsoon seasons?
Time-resolved emission reductions for atmospheric chemistry modelling in Europe during the COVID-19 lockdowns
Improving the prediction of an atmospheric chemistry transport model using gradient-boosted regression trees
Attributing ozone and its precursors to land transport emissions in Europe and Germany
Nonstationary modeling of NO2, NO and NOx in Paris using the Street-in-Grid model: coupling local and regional scales with a two-way dynamic approach
Constraining remote oxidation capacity with ATom observations
H migration in peroxy radicals under atmospheric conditions
Variability and past long-term changes of brominated very short-lived substances at the tropical tropopause
Atmospheric chemical loss processes of isocyanic acid (HNCO): a combined theoretical kinetic and global modelling study
Inverse modeling of SO2 and NOx emissions over China using multisensor satellite data – Part 2: Downscaling techniques for air quality analysis and forecasts
Worsening urban ozone pollution in China from 2013 to 2017 – Part 1: The complex and varying roles of meteorology
Worsening urban ozone pollution in China from 2013 to 2017 – Part 2: The effects of emission changes and implications for multi-pollutant control
Influence of aromatics on tropospheric gas-phase composition
Developing a novel hybrid model for the estimation of surface 8 h ozone (O3) across the remote Tibetan Plateau during 2005–2018
Spatial–temporal variations and process analysis of O3 pollution in Hangzhou during the G20 summit
Xiaodan Ma, Jianping Huang, Tianliang Zhao, Cheng Liu, Kaihui Zhao, Jia Xing, and Wei Xiao
Atmos. Chem. Phys., 21, 1–16, https://doi.org/10.5194/acp-21-1-2021, https://doi.org/10.5194/acp-21-1-2021, 2021
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The present work aims at identifying and quantifying the relative contributions of the key factors in driving a rapid increase in summertime surface O3 over the North China Plain during 2013–2019. In addition to anthropogenic emission reduction and meteorological variabilities, our study highlights the importance of inclusion of aerosol absorption and scattering properties rather than aerosol abundance only in accurate assessment of aerosol radiative effect on surface O3 formation and change.
Xin Yang, Anne-M. Blechschmidt, Kristof Bognar, Audra McClure-Begley, Sara Morris, Irina Petropavlovskikh, Andreas Richter, Henrik Skov, Kimberly Strong, David W. Tarasick, Taneil Uttal, Mika Vestenius, and Xiaoyi Zhao
Atmos. Chem. Phys., 20, 15937–15967, https://doi.org/10.5194/acp-20-15937-2020, https://doi.org/10.5194/acp-20-15937-2020, 2020
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This is a modelling-based study on Arctic surface ozone, with a particular focus on spring ozone depletion events (i.e. with concentrations < 10 ppbv). Model experiments show that model runs with blowing-snow-sourced sea salt aerosols implemented as a source of reactive bromine can reproduce well large-scale ozone depletion events observed in the Arctic. This study supplies modelling evidence of the proposed mechanism of reactive-bromine release from blowing snow on sea ice (Yang et al., 2008).
Huan Song, Xiaorui Chen, Keding Lu, Qi Zou, Zhaofeng Tan, Hendrik Fuchs, Alfred Wiedensohler, Daniel R. Moon, Dwayne E. Heard, María-Teresa Baeza-Romero, Mei Zheng, Andreas Wahner, Astrid Kiendler-Scharr, and Yuanhang Zhang
Atmos. Chem. Phys., 20, 15835–15850, https://doi.org/10.5194/acp-20-15835-2020, https://doi.org/10.5194/acp-20-15835-2020, 2020
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Accurate calculation of the HO2 uptake coefficient is one of the key parameters to quantify the co-reduction of both aerosol and ozone pollution. We modelled various lab measurements of γHO2 based on a gas-liquid phase kinetic model and developed a state-of-the-art parameterized equation. Based on a dataset from a comprehensive field campaign in the North China Plain, we proposed that the determination of the heterogeneous uptake process for HO2 should be included in future field campaigns.
Sebnem Aksoyoglu, Jianhui Jiang, Giancarlo Ciarelli, Urs Baltensperger, and André S. H. Prévôt
Atmos. Chem. Phys., 20, 15665–15680, https://doi.org/10.5194/acp-20-15665-2020, https://doi.org/10.5194/acp-20-15665-2020, 2020
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We investigated the role of ammonia in European air quality between 1990 and 2030 under varying land and ship emissions. If ship emissions will be regulated more strictly in the future, particulate nitrate will decrease in coastal areas in northern Europe, while sulfate aerosol will decrease in the Mediterranean region. We predict a shift in the sensitivity of aerosol formation from NH3 towards NOx emissions between 1990 and 2030 in most of Europe except the eastern part of the model domain.
Hajime Akimoto, Tatsuya Nagashima, Natsumi Kawano, Li Jie, Joshua S. Fu, and Zifa Wang
Atmos. Chem. Phys., 20, 15003–15014, https://doi.org/10.5194/acp-20-15003-2020, https://doi.org/10.5194/acp-20-15003-2020, 2020
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In order to perform proper model simulation of ozone near the ground in the coastal area of northeastern Asia, it has been found that it is very important to select appropriate dry deposition velocities of ozone on the oceanic water of specific area of the northwestern Pacific. Empirical measurement of the mixing ratios and dry deposition flux of ozone over the ocean in this area is highly recommended.
Benjamin Gaubert, Louisa K. Emmons, Kevin Raeder, Simone Tilmes, Kazuyuki Miyazaki, Avelino F. Arellano Jr., Nellie Elguindi, Claire Granier, Wenfu Tang, Jérôme Barré, Helen M. Worden, Rebecca R. Buchholz, David P. Edwards, Philipp Franke, Jeffrey L. Anderson, Marielle Saunois, Jason Schroeder, Jung-Hun Woo, Isobel J. Simpson, Donald R. Blake, Simone Meinardi, Paul O. Wennberg, John Crounse, Alex Teng, Michelle Kim, Russell R. Dickerson, Hao He, Xinrong Ren, Sally E. Pusede, and Glenn S. Diskin
Atmos. Chem. Phys., 20, 14617–14647, https://doi.org/10.5194/acp-20-14617-2020, https://doi.org/10.5194/acp-20-14617-2020, 2020
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This study investigates carbon monoxide pollution in East Asia during spring using a numerical model, satellite remote sensing, and aircraft measurements. We found an underestimation of emission sources. Correcting the emission bias can improve air quality forecasting of carbon monoxide and other species including ozone. Results also suggest that controlling VOC and CO emissions, in addition to widespread NOx controls, can improve ozone pollution over East Asia.
Jia Xing, Siwei Li, Yueqi Jiang, Shuxiao Wang, Dian Ding, Zhaoxin Dong, Yun Zhu, and Jiming Hao
Atmos. Chem. Phys., 20, 14347–14359, https://doi.org/10.5194/acp-20-14347-2020, https://doi.org/10.5194/acp-20-14347-2020, 2020
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Quantifying emission changes is a prerequisite for assessment of control effectiveness in improving air quality. However, traditional bottom-up methods usually take months to perform and limit timely assessments. A novel method was developed by using a response model that provides real-time estimation of emission changes based on air quality observations. It was successfully applied to quantify emission changes on the North China Plain due to the COVID-19 pandemic shutdown.
Audrey Fortems-Cheiney, Gaëlle Dufour, Karine Dufossé, Florian Couvidat, Jean-Marc Gilliot, Guillaume Siour, Matthias Beekmann, Gilles Foret, Frederik Meleux, Lieven Clarisse, Pierre-François Coheur, Martin Van Damme, Cathy Clerbaux, and Sophie Génermont
Atmos. Chem. Phys., 20, 13481–13495, https://doi.org/10.5194/acp-20-13481-2020, https://doi.org/10.5194/acp-20-13481-2020, 2020
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Studies have suggested the importance of ammonia emissions on pollution particle formation over Europe, whose main atmospheric source is agriculture. In this study, we performed an inter-comparison of two alternative inventories, both with a reference inventory, that quantify the French ammonia emissions during spring 2011. Over regions with large mineral fertilizer use, like over northeastern France, NH3 emissions are probably considerably underestimated by the reference inventory.
Zhen Qu, Daven K. Henze, Owen R. Cooper, and Jessica L. Neu
Atmos. Chem. Phys., 20, 13109–13130, https://doi.org/10.5194/acp-20-13109-2020, https://doi.org/10.5194/acp-20-13109-2020, 2020
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We use satellite observations and chemical transport modeling to quantify sources of NOx, a major air pollutant, over the past decade. We find improved simulations of the magnitude, seasonality, and trends of NO2 and ozone concentrations using these derived emissions. Changes in ozone pollution driven by human and natural sources are identified in different regions. This work shows the benefits of remote-sensing data and inverse modeling for more accurate ozone simulations.
Rachel L. Tunnicliffe, Anita L. Ganesan, Robert J. Parker, Hartmut Boesch, Nicola Gedney, Benjamin Poulter, Zhen Zhang, Jošt V. Lavrič, David Walter, Matthew Rigby, Stephan Henne, Dickon Young, and Simon O'Doherty
Atmos. Chem. Phys., 20, 13041–13067, https://doi.org/10.5194/acp-20-13041-2020, https://doi.org/10.5194/acp-20-13041-2020, 2020
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This study quantifies Brazil’s emissions of a potent atmospheric greenhouse gas, methane. This is in the field of atmospheric modelling and uses remotely sensed data and surface measurements of methane concentrations as well as an atmospheric transport model to interpret the data. Because of Brazil’s large emissions from wetlands, agriculture and biomass burning, these emissions affect global methane concentrations and thus are of global significance.
Yuanhong Zhao, Marielle Saunois, Philippe Bousquet, Xin Lin, Antoine Berchet, Michaela I. Hegglin, Josep G. Canadell, Robert B. Jackson, Makoto Deushi, Patrick Jöckel, Douglas Kinnison, Ole Kirner, Sarah Strode, Simone Tilmes, Edward J. Dlugokencky, and Bo Zheng
Atmos. Chem. Phys., 20, 13011–13022, https://doi.org/10.5194/acp-20-13011-2020, https://doi.org/10.5194/acp-20-13011-2020, 2020
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Decadal trends and variations in OH are critical for understanding atmospheric CH4 evolution. We quantify the impacts of OH trends and variations on the CH4 budget by conducting CH4 inversions on a decadal scale with an ensemble of OH fields. We find the negative OH anomalies due to enhanced fires can reduce the optimized CH4 emissions by up to 10 Tg yr−1 during El Niño years and the positive OH trend from 1986 to 2010 results in a ∼ 23 Tg yr−1 additional increase in optimized CH4 emissions.
David S. Stevenson, Alcide Zhao, Vaishali Naik, Fiona M. O'Connor, Simone Tilmes, Guang Zeng, Lee T. Murray, William J. Collins, Paul T. Griffiths, Sungbo Shim, Larry W. Horowitz, Lori T. Sentman, and Louisa Emmons
Atmos. Chem. Phys., 20, 12905–12920, https://doi.org/10.5194/acp-20-12905-2020, https://doi.org/10.5194/acp-20-12905-2020, 2020
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We present historical trends in atmospheric oxidizing capacity (OC) since 1850 from the latest generation of global climate models and compare these with estimates from measurements. OC controls levels of many key reactive gases, including methane (CH4). We find small model trends up to 1980, then increases of about 9 % up to 2014, disagreeing with (uncertain) measurement-based trends. Major drivers of OC trends are emissions of CH4, NOx, and CO; these will be important for future CH4 trends.
Michael E. Jenkin, Richard Valorso, Bernard Aumont, Mike J. Newland, and Andrew R. Rickard
Atmos. Chem. Phys., 20, 12921–12937, https://doi.org/10.5194/acp-20-12921-2020, https://doi.org/10.5194/acp-20-12921-2020, 2020
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Unsaturated organic compounds are emitted in large quantities from natural and human-influenced sources. Atmospheric removal occurs significantly by reaction with ozone, initiating reaction sequences forming free radicals and organic pollutants in the gaseous and particulate phases. Due to their very large number, it is impossible to study the reaction rate for every compound, and most have to be estimated. Updated and extended estimation methods are reported for use in atmospheric models.
Junichi Kurokawa and Toshimasa Ohara
Atmos. Chem. Phys., 20, 12761–12793, https://doi.org/10.5194/acp-20-12761-2020, https://doi.org/10.5194/acp-20-12761-2020, 2020
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A long historical emission inventory of major air pollutants in Asia during 1950–2015 was developed as Regional Emission inventory in ASia version 3 (REASv3). Trends of emissions and changes in source contributions in countries and regions in Asia during these 6 decades were analyzed. REASv3 provides monthly gridded data with 0.25° by 0.25° resolution for major source categories as well as table of emissions by countries and sub-regions for major sectors and fuel types.
Simon Rosanka, Christine Frömming, and Volker Grewe
Atmos. Chem. Phys., 20, 12347–12361, https://doi.org/10.5194/acp-20-12347-2020, https://doi.org/10.5194/acp-20-12347-2020, 2020
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Aviation-attributed nitrogen oxide (NOx) emissions lead to an increase in ozone and a depletion of methane. We investigate the impact of weather-related transport processes on these induced composition changes. Subsidence in high-pressure systems leads to earlier ozone maxima due to an enhanced chemical activity. Background NOx and hydroperoxyl radicals limit the total ozone change during summer and winter, respectively. High water vapour concentrations lead to a high methane depletion.
Peiyu Cao, Chaoqun Lu, Jien Zhang, and Avani Khadilkar
Atmos. Chem. Phys., 20, 11907–11922, https://doi.org/10.5194/acp-20-11907-2020, https://doi.org/10.5194/acp-20-11907-2020, 2020
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In this study, we estimate monthly ammonia emission from synthetic nitrogen fertilizer use across the contiguous US from 1900 to 2015. The results indicate the important role that cropland expansion and nitrogen fertilizer enrichment played in enhancing NH3 emissions. It shows such long-term human activities have dramatically changed the spatiotemporal and seasonal patterns of NH3 emission, impacting air pollution and public health in the US.
Pengfei Han, Ning Zeng, Tom Oda, Xiaohui Lin, Monica Crippa, Dabo Guan, Greet Janssens-Maenhout, Xiaolin Ma, Zhu Liu, Yuli Shan, Shu Tao, Haikun Wang, Rong Wang, Lin Wu, Xiao Yun, Qiang Zhang, Fang Zhao, and Bo Zheng
Atmos. Chem. Phys., 20, 11371–11385, https://doi.org/10.5194/acp-20-11371-2020, https://doi.org/10.5194/acp-20-11371-2020, 2020
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An accurate estimation of China’s fossil-fuel CO2 emissions (FFCO2) is significant for quantification of carbon budget and emissions reductions towards the Paris Agreement goals. Here we assessed 9 global and regional inventories. Our findings highlight the significance of using locally measured coal emission factors. We call on the enhancement of physical measurements for validation and provide comprehensive information for inventory, monitoring, modeling, assimilation, and reducing emissions.
Ke Li, Daniel J. Jacob, Lu Shen, Xiao Lu, Isabelle De Smedt, and Hong Liao
Atmos. Chem. Phys., 20, 11423–11433, https://doi.org/10.5194/acp-20-11423-2020, https://doi.org/10.5194/acp-20-11423-2020, 2020
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Surface summer ozone increased in China from 2013 to 2019 despite new governmental efforts targeting ozone pollution. We find that the ozone increase is mostly due to anthropogenic drivers, although meteorology also plays a role. Further analysis for the North China Plain shows that PM2.5 continued to decrease through 2019, while emissions of volatile organic compounds (VOCs) stayed flat. This could explain the anthropogenic increase in ozone, as PM2.5 scavenges the radical precursors of ozone.
Hervé Petetin, Dene Bowdalo, Albert Soret, Marc Guevara, Oriol Jorba, Kim Serradell, and Carlos Pérez García-Pando
Atmos. Chem. Phys., 20, 11119–11141, https://doi.org/10.5194/acp-20-11119-2020, https://doi.org/10.5194/acp-20-11119-2020, 2020
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To control the spread of the COVID-19 coronavirus, the Spanish Government recently implemented a strict lockdown of the population, which strongly reduced the levels of nitrogen dioxide (NO2), one of the most critical air pollutants in Spain. This study quantifies the contribution of the lockdown on these reduced NO2 levels in Spain, taking the confounding effect of meteorology on artificial intelligence techniques into account.
Matthew J. Rowlinson, Alexandru Rap, Douglas S. Hamilton, Richard J. Pope, Stijn Hantson, Steve R. Arnold, Jed O. Kaplan, Almut Arneth, Martyn P. Chipperfield, Piers M. Forster, and Lars Nieradzik
Atmos. Chem. Phys., 20, 10937–10951, https://doi.org/10.5194/acp-20-10937-2020, https://doi.org/10.5194/acp-20-10937-2020, 2020
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Tropospheric ozone is an important greenhouse gas which contributes to anthropogenic climate change; however, the effect of human emissions is uncertain because pre-industrial ozone concentrations are not well understood. We use revised inventories of pre-industrial natural emissions to estimate the human contribution to changes in tropospheric ozone. We find that tropospheric ozone radiative forcing is up to 34 % lower when using improved pre-industrial biomass burning and vegetation emissions.
James Weber, Scott Archer-Nicholls, Paul Griffiths, Torsten Berndt, Michael Jenkin, Hamish Gordon, Christoph Knote, and Alexander T. Archibald
Atmos. Chem. Phys., 20, 10889–10910, https://doi.org/10.5194/acp-20-10889-2020, https://doi.org/10.5194/acp-20-10889-2020, 2020
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Highly oxygenated organic molecules (HOMs) are important for aerosol growth and new particle formation, particularly in air masses with less sulphuric acid. This new chemical mechanism reproduces measured [HOM] and [HOM precursors] and is concise enough for use in global climate models. The mechanism also reproduces the observed suppression of HOMs by isoprene, suggesting enhanced emissions may not necessarily lead to more aerosols. Greater HOM importance in the pre-industrial era is also shown.
Margaret R. Marvin, Paul I. Palmer, Barry G. Latter, Richard Siddans, Brian J. Kerridge, Mohd Talib Latif, and Md Firoz Khan
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-886, https://doi.org/10.5194/acp-2020-886, 2020
Revised manuscript accepted for ACP
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We use an atmospheric chemistry model in combination with satellite and surface observations to investigate how biomass burning affects tropospheric ozone over Southeast Asia during its fire seasons. We find that nitrogen oxides from biomass burning were responsible for about 30 % of the regional ozone formation potential, and we estimate that ozone from biomass burning caused about 550 excess premature deaths in Southeast Asia, during the peak burning months of March and September in 2014.
Martin O. P. Ramacher, Lin Tang, Jana Moldanová, Volker Matthias, Matthias Karl, Erik Fridell, and Lasse Johansson
Atmos. Chem. Phys., 20, 10667–10686, https://doi.org/10.5194/acp-20-10667-2020, https://doi.org/10.5194/acp-20-10667-2020, 2020
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The effects of shipping emissions on air quality and health in the harbour city of Gothenburg were simulated for different scenarios for the year 2040 with coupled regional and city-scale chemistry transport models to evaluate the impact of regional emission regulations and onshore electricity for ships at berth. The results show that contributions of shipping to exposure and associated health impacts from particulate matter and NO2 decrease significantly compared to 2012 in all scenarios.
Tim Butler, Aurelia Lupascu, and Aditya Nalam
Atmos. Chem. Phys., 20, 10707–10731, https://doi.org/10.5194/acp-20-10707-2020, https://doi.org/10.5194/acp-20-10707-2020, 2020
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Ground-level ozone (O3) is not directly emitted; it is formed chemically in the atmosphere. Some ground-level O3 is transported from the stratosphere, but most O3 is produced from reactive precursors that are emitted by both natural and anthropogenic sources. We present the results of a novel source apportionment method for ground-level O3. Our results are consistent with previous work and also provide new insights. In particular, we highlight the roles of methane and international shipping.
Li Zhang, Meiyun Lin, Andrew O. Langford, Larry W. Horowitz, Christoph J. Senff, Elizabeth Klovenski, Yuxuan Wang, Raul J. Alvarez II, Irina Petropavlovskikh, Patrick Cullis, Chance W. Sterling, Jeff Peischl, Thomas B. Ryerson, Steven S. Brown, Zachary C. J. Decker, Guillaume Kirgis, and Stephen Conley
Atmos. Chem. Phys., 20, 10379–10400, https://doi.org/10.5194/acp-20-10379-2020, https://doi.org/10.5194/acp-20-10379-2020, 2020
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Measuring and quantifying the sources of elevated springtime ozone in the southwestern US is challenging but relevant to the implications for control policy. Here we use intensive field measurements and two global models to study ozone sources in the region. We find that ozone from the stratosphere, wildfires, and Asia is an important source of high-ozone events in the region. Our analysis also helps understand the uncertainties in ozone simulations with individual models.
Xueying Yu, Dylan B. Millet, Kelley C. Wells, Daven K. Henze, Hansen Cao, Timothy J. Griffis, Eric A. Kort, Genevieve Plant, Malte J. Deventer, Randall K. Kolka, D. Tyler Roman, Kenneth J. Davis, Ankur R. Desai, Bianca C. Baier, Kathryn McKain, Alan C. Czarnetzki, and A. Anthony Bloom
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-826, https://doi.org/10.5194/acp-2020-826, 2020
Revised manuscript accepted for ACP
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Methane concentrations have doubled since 1750. The US Upper Midwest is a key region contributing to such trends, but sources are poorly understood. We collected and analyzed aircraft data to resolve spatial and timing biases in wetland and livestock emission estimates, and uncover errors in inventory treatment of manure management. We highlight the importance of intensive agriculture for the regional and US methane budgets, and the potential for methane mitigation through improved management.
Amir H. Souri, Caroline R. Nowlan, Gonzalo González Abad, Lei Zhu, Donald R. Blake, Alan Fried, Andrew J. Weinheimer, Armin Wisthaler, Jung-Hun Woo, Qiang Zhang, Christopher E. Chan Miller, Xiong Liu, and Kelly Chance
Atmos. Chem. Phys., 20, 9837–9854, https://doi.org/10.5194/acp-20-9837-2020, https://doi.org/10.5194/acp-20-9837-2020, 2020
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For the first time, we provide a joint nonlinear optimal estimate of NOx and NMVOC emissions during the KORUS-AQ campaign by simultaneously incorporating SAO's new product of HCHO columns from OMPS and OMI tropospheric NO2 columns into a regional model. Results demonstrate a promising improvement in the performance of the model in terms of HCHO and NO2 concentrations, which in turn enables us to quantify the impact of the emission changes on different pathways of ozone formation and loss.
Angharad C. Stell, Luke M. Western, and Matthew Rigby
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-871, https://doi.org/10.5194/acp-2020-871, 2020
Revised manuscript accepted for ACP
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Although it is the second most important greenhouse gas, our understanding of the atmospheric methane budget is limited. The uncertainty highlights the need for new tools to investigate sources and sinks. Here, we use a Gaussian process emulator to efficiently approximate the response of atmospheric methane observations to changes in the most uncertain emission or loss processes. With this new method, we rigorously quantify the sensitivity of atmospheric observations to budget uncertainties.
Jun Liu, Dan Tong, Yixuan Zheng, Jing Cheng, Xinying Qin, Qinren Shi, Liu Yan, Yu Lei, and Qiang Zhang
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-631, https://doi.org/10.5194/acp-2020-631, 2020
Revised manuscript accepted for ACP
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In this study, we investigated the decadal changes of carbon dioxide and air pollutant emissions in China's cement industry for the period of 1990–2015, based on intensive unit-based information. We found that, from 1990 to 2015, accompanied by a 10.9-fold increase in cement production, CO2, SO2, and NOx emissions from China's cement industry increased by 626 %, 59 %, and 658 %, whereas CO, PM2.5 and PM10 emissions decreased by 9 %, 66 %, and 63 %, respectively.
Jingyu An, Yiwei Huang, Cheng Huang, Xin Wang, Rusha Yan, Qian Wang, Hongli Wang, Sheng'ao Jing, Yan Zhang, Yiming Liu, A. J. Yuan Chen, Chang Xu, Liping Qiao, Min Zhou, Shuhui Zhu, Qingyao Hu, Jun Lu, and Changhong Chen
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-582, https://doi.org/10.5194/acp-2020-582, 2020
Revised manuscript accepted for ACP
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This study established a 4 × 4 km high-resolved anthropogenic emission inventory in the Yangtze River Delta region, China for the year 2017 based on local-measured emission factors and source profiles. There are high-intensity NOx and NMVOC species emissions in the eastern areas of the region. Toluene, 1,2,4-trimethylbenzene, m,p-xylene, propylene, ethylene, o-xylene, as well as OVOCs from industry and mobile sources have the highest comprehensive potentials on ozone and SOA formation.
Yuanhong Zhao, Marielle Saunois, Philippe Bousquet, Xin Lin, Antoine Berchet, Michaela I. Hegglin, Josep G. Canadell, Robert B. Jackson, Edward J. Dlugokencky, Ray L. Langenfelds, Michel Ramonet, Doug Worthy, and Bo Zheng
Atmos. Chem. Phys., 20, 9525–9546, https://doi.org/10.5194/acp-20-9525-2020, https://doi.org/10.5194/acp-20-9525-2020, 2020
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The hydroxyl radical (OH), which is the dominant sink of methane (CH4), plays a key role in closing the global methane budget. This study quantifies how uncertainties in the hydroxyl radical can influence top-down estimates of CH4 emissions based on 4D Bayesian inversions with different OH fields and the same surface observations. We show that uncertainties in CH4 emissions driven by different OH fields are comparable to the uncertainties given by current bottom-up and top-down estimations.
Johannes G. M. Barten, Laurens N. Ganzeveld, Auke J. Visser, Rodrigo Jiménez, and Maarten C. Krol
Atmos. Chem. Phys., 20, 9441–9458, https://doi.org/10.5194/acp-20-9441-2020, https://doi.org/10.5194/acp-20-9441-2020, 2020
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Combining satellite and urban air pollution measurements with a meteorology and air quality model, we present the state of air quality in Colombia. We found four distinctly different emission regimes. The simulated pollution levels compare well with satellite data, but the comparison also indicates misrepresentation of prescribed fire emissions and simulated lightning emissions. Comparison of urban measurements requires careful consideration of (nocturnal) boundary layer dynamics and advection.
Martin Cussac, Virginie Marécal, Valérie Thouret, Béatrice Josse, and Bastien Sauvage
Atmos. Chem. Phys., 20, 9393–9417, https://doi.org/10.5194/acp-20-9393-2020, https://doi.org/10.5194/acp-20-9393-2020, 2020
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Biomass burning emissions are a major source of carbon monoxide in the atmosphere. Here, the vertical transport that these emissions can undergo until the upper troposphere is investigated, as well as their contribution to carbon monoxide concentrations. It was found that boreal forest emissions were specific to the occurrence of pyroconvection directly above the fires, whereas biomass burning emissions from other regions of the globe relied more on the occurrence of deep convection.
Yang Yang, Yu Zhao, Lei Zhang, Jie Zhang, Xin Huang, Xuefen Zhao, Yan Zhang, Mengxiao Xi, and Yi Lu
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-751, https://doi.org/10.5194/acp-2020-751, 2020
Revised manuscript accepted for ACP
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We made new NOx emission estimation based on the satellite-derived NO2 column constraint, and found the reduced emissions compared to previous estimate for a developed region in east China. The subsequent improvement on air quality modeling was demonstrated based on available ground observation. With multiple emission reduction cases for various pollutants, we explored the effective control approaches for ozone and inorganic aerosol pollution.
Eirini Boleti, Christoph Hueglin, Stuart K. Grange, André S. H. Prévôt, and Satoshi Takahama
Atmos. Chem. Phys., 20, 9051–9066, https://doi.org/10.5194/acp-20-9051-2020, https://doi.org/10.5194/acp-20-9051-2020, 2020
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Long-term temporal evolution of ozone concentrations between 2000 and 2015 in Europe was estimated using a signal decomposition technique. The seasonal cycles are correlated with local climate conditions and vary according to geographic region, while ozone levels are indicative of distance to emission sources. The site's environment plays a key role in ozone trends, with the most polluted environments showing the least reduction in ozone, while in less polluted areas ozone has decreased.
Tiantian Wang, Yu Song, Zhenying Xu, Mingxu Liu, Tingting Xu, Wenling Liao, Lifei Yin, Xuhui Cai, Ling Kang, Hongsheng Zhang, and Tong Zhu
Atmos. Chem. Phys., 20, 8727–8736, https://doi.org/10.5194/acp-20-8727-2020, https://doi.org/10.5194/acp-20-8727-2020, 2020
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Satellite measurements have revealed that the Indo-Gangetic Plain (IGP) has the global maximum ammonia concentrations, with a peak from June to August. Here, we studied the reasons for this phenomenon through computer simulations. Low sulfur dioxide and nitrogen oxides emissions and high air temperature over the IGP weaken the swallowing of gaseous ammonia by acidic gases. Additionally, the barrier effects of the Himalayas, like a windshield, are also conducive to the accumulation of ammonia.
Marc Guevara, Oriol Jorba, Albert Soret, Hervé Petetin, Dene Bowdalo, Kim Serradell, Carles Tena, Hugo Denier van der Gon, Jeroen Kuenen, Vincent-Henri Peuch, and Carlos Pérez García-Pando
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-686, https://doi.org/10.5194/acp-2020-686, 2020
Revised manuscript accepted for ACP
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Most European countries have imposed lockdowns to combat the spread of the COVID-19 pandemic. Such a socioeconomic disruption has resulted in a sudden drop of atmospheric emissions and air pollution levels. This study quantifies the daily reductions in national emissions and associated levels of nitrogen dioxide (NO2) due to the COVID-19 lockdowns in Europe, by making use of multiple open access measured activity data as well as artificial intelligence and modelling techniques.
Peter D. Ivatt and Mathew J. Evans
Atmos. Chem. Phys., 20, 8063–8082, https://doi.org/10.5194/acp-20-8063-2020, https://doi.org/10.5194/acp-20-8063-2020, 2020
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We investigate the potential of using a decision tree algorithm to identify and correct the tropospheric ozone bias in a chemical transport model. We train the algorithm on 2010–2015 ground and column observation data and test the algorithm on the 2016–2017 data using the ground data as well as independent flight data. We find the algorithm is successfully able to identify and correct the bias, improving the model performance.
Mariano Mertens, Astrid Kerkweg, Volker Grewe, Patrick Jöckel, and Robert Sausen
Atmos. Chem. Phys., 20, 7843–7873, https://doi.org/10.5194/acp-20-7843-2020, https://doi.org/10.5194/acp-20-7843-2020, 2020
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We investigate the contribution of land transport emissions to ozone and ozone precursors in Europe and Germany. Our results show that land transport emissions are one of the most important contributors to reactive nitrogen in Europe. The contribution to ozone is in the range of 8 % to 16 % and varies strongly for different seasons. The hots-pots with the largest ozone concentrations are the Po Valley, while the largest concentration to reactive nitrogen is located mainly in western Europe.
Lya Lugon, Karine Sartelet, Youngseob Kim, Jérémy Vigneron, and Olivier Chrétien
Atmos. Chem. Phys., 20, 7717–7740, https://doi.org/10.5194/acp-20-7717-2020, https://doi.org/10.5194/acp-20-7717-2020, 2020
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This study presents a new version of the multi-scale model Street-in-Grid (SinG) that interconnects regional and local scales in air-quality modeling in urban areas. The new version of SinG performs the finest coupling between transport and chemistry, leading to a numerically stable partitioning between NO and NO2. Multi-scale, local-scale and regional-scale simulations of NO, NO2 and NOx over Paris are compared to observations, and SinG shows good performance for both local and regional scales.
Katherine R. Travis, Colette L. Heald, Hannah M. Allen, Eric C. Apel, Stephen R. Arnold, Donald R. Blake, William H. Brune, Xin Chen, Róisín Commane, John D. Crounse, Bruce C. Daube, Glenn S. Diskin, James W. Elkins, Mathew J. Evans, Samuel R. Hall, Eric J. Hintsa, Rebecca S. Hornbrook, Prasad S. Kasibhatla, Michelle J. Kim, Gan Luo, Kathryn McKain, Dylan B. Millet, Fred L. Moore, Jeffrey Peischl, Thomas B. Ryerson, Tomás Sherwen, Alexander B. Thames, Kirk Ullmann, Xuan Wang, Paul O. Wennberg, Glenn M. Wolfe, and Fangqun Yu
Atmos. Chem. Phys., 20, 7753–7781, https://doi.org/10.5194/acp-20-7753-2020, https://doi.org/10.5194/acp-20-7753-2020, 2020
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Atmospheric models overestimate the rate of removal of trace gases by the hydroxyl radical (OH). This is a concern for studies of the climate and air quality impacts of human activities. Here, we evaluate the performance of a commonly used model of atmospheric chemistry against data from the NASA Atmospheric Tomography Mission (ATom) over the remote oceans where models have received little validation. The model is generally successful, suggesting that biases in OH may be a concern over land.
Luc Vereecken and Barbara Nozière
Atmos. Chem. Phys., 20, 7429–7458, https://doi.org/10.5194/acp-20-7429-2020, https://doi.org/10.5194/acp-20-7429-2020, 2020
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Alkyl peroxy radicals, RO2, are important intermediates in the oxidation of organic material in the atmosphere. It was shown earlier that hydrogen atom migration within RO2 can be important and results in the formation of additional oxidants and large highly oxygenated molecules that lead to more and larger aerosols. In this work we propose a method for predicting the chemical rate for these H migrations in RO2, helping atmospheric models to correctly include these reactions.
Susann Tegtmeier, Elliot Atlas, Birgit Quack, Franziska Ziska, and Kirstin Krüger
Atmos. Chem. Phys., 20, 7103–7123, https://doi.org/10.5194/acp-20-7103-2020, https://doi.org/10.5194/acp-20-7103-2020, 2020
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We investigate emissions of brominated gases from the ocean and their contribution to stratospheric ozone depletion. Once in the atmosphere, these gases usually break down in less than 6 months. Their impact on the ozone layer depends on the prevailing atmospheric circulation, since transport to the stratosphere requires uplift. We combine aircraft and ship observations with atmospheric modelling to analyse how, where, and when these gases are transported from the ocean into the stratosphere.
Simon Rosanka, Giang H. T. Vu, Hue M. T. Nguyen, Tien V. Pham, Umar Javed, Domenico Taraborrelli, and Luc Vereecken
Atmos. Chem. Phys., 20, 6671–6686, https://doi.org/10.5194/acp-20-6671-2020, https://doi.org/10.5194/acp-20-6671-2020, 2020
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Isocyanic acid, HNCO, is a toxic chemical compound emitted to the atmosphere by biomass burning and by unwanted release in NOx mitigation systems in vehicles such as the AdBlue system. We have studied the loss processes of HNCO, finding that it is unreactive to most atmospheric oxidants and thus has a long chemical lifetime. The main removal is then by deposition on surfaces and transition to aqueous phase, such as clouds. The long lifetime also allows it to be transported to the stratosphere.
Yi Wang, Jun Wang, Meng Zhou, Daven K. Henze, Cui Ge, and Wei Wang
Atmos. Chem. Phys., 20, 6651–6670, https://doi.org/10.5194/acp-20-6651-2020, https://doi.org/10.5194/acp-20-6651-2020, 2020
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We developed four different methods to downscale SO2 and NO2 emissions derived from OMPS satellite observations (in Part 1) for regional air quality modeling at a spatial resolution that is finer than satellite observations. The VIIRS (city lights), TROPOMI, and OMI satellite data as well as surface data are used to evaluate the model. The method of using the top-down emissions from the past month for the air quality forecast in the present month is also shown to have practical merit.
Yiming Liu and Tao Wang
Atmos. Chem. Phys., 20, 6305–6321, https://doi.org/10.5194/acp-20-6305-2020, https://doi.org/10.5194/acp-20-6305-2020, 2020
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This study revealed the effects of changes in meteorology and anthropogenic emissions on the summer ozone variations from 2013 to 2017 across China by conducting numerical experiments. We highlighted the important but varying roles of meteorology in ozone variations attributed to the synergistic or counteracting effects from individual meteorological factors. Developing future ozone pollution mitigation policies should consider the counteracting impact of meteorological changes.
Yiming Liu and Tao Wang
Atmos. Chem. Phys., 20, 6323–6337, https://doi.org/10.5194/acp-20-6323-2020, https://doi.org/10.5194/acp-20-6323-2020, 2020
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Surface ozone levels in urban areas of China were increasing despite the implementation of stringent emission control measures since 2013. Our modeling results show that the decrease in NOx, SO2, and PM emissions and increase in VOC emissions contributed to the urban ozone increases due to the nonlinear ozone chemistry and complex aerosol affects. VOC reduction measures should be implemented in the current and future policies to achieve the goal of improving the overall air quality.
Domenico Taraborrelli, David Cabrera-Perez, Sara Bacer, Sergey Gromov, Jos Lelieveld, Rolf Sander, and Andrea Pozzer
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2020-461, https://doi.org/10.5194/acp-2020-461, 2020
Revised manuscript accepted for ACP
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Atmospheric pollutants from anthropogenic activities and biomass burning are usually regarded as ozone precursors. Monocyclic aromatics are no exception. Calculations with a comprehensive atmospheric model are consistent with this view but only for air masses close to pollution source regions. However, the same model predicts that aromatics, when transported to remote areas, may effectively destroy ozone. This loss of tropospheric ozone rivals the one attributed to bromine.
Rui Li, Yilong Zhao, Wenhui Zhou, Ya Meng, Ziyu Zhang, and Hongbo Fu
Atmos. Chem. Phys., 20, 6159–6175, https://doi.org/10.5194/acp-20-6159-2020, https://doi.org/10.5194/acp-20-6159-2020, 2020
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The Tibetan Plateau lacks ground-level O3 observation due to its unique geographical environment. It is imperative to employ modelling methods to simulate the O3 level. The present study proposed a novel technique for estimating the surface O3 level in remote regions. The result captured long-term O3 concentration on the Tibetan Plateau, which was beneficial for assessing the effects of O3 on climate change and ecosystem safety, especially in a vulnerable area of the ecological environment.
Zhi-Zhen Ni, Kun Luo, Yang Gao, Xiang Gao, Fei Jiang, Cheng Huang, Jian-Ren Fan, Joshua S. Fu, and Chang-Hong Chen
Atmos. Chem. Phys., 20, 5963–5976, https://doi.org/10.5194/acp-20-5963-2020, https://doi.org/10.5194/acp-20-5963-2020, 2020
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The Weather Research Forecast with Chemistry (WRF-Chem) model was used to simulate spatial and temporal O3 evolution in the Yangtze River Delta (YRD) region. Various atmospheric processes were analyzed to determine the influential factors of ozone formation through the integrated process rate method. This paper provides insight into urban O3 formation and dispersion during tropical cyclone events and supports the Model Intercomparison Study Asia Phase III (MICS-Asia Phase III).
Cited articles
Acker, K., Moller, D., Wieprecht, W., Meixner, F. X., Bohn, B., Gilge, S.,
Plass-Dulmer, C., and Berresheim, H.: Strong daytime production of OH from
HNO2 at a rural mountain site, Geophys. Res. Lett., 33, L02809,
https://doi.org/10.1029/2005gl024643, 2006.
Alicke, B., Geyer, A., Hofzumahaus, A., Holland, F., Konrad, S., Patz, H.
W., Schafer, J., Stutz, J., Volz-Thomas, A., and Platt, U.: OH formation by
HONO photolysis during the BERLIOZ experiment, J. Geophys.
Res.-Atmos., 108, 8247, https://doi.org/10.1029/2001jd000579, 2003.
Appel, K. W., Napelenok, S. L., Foley, K. M., Pye, H. O. T., Hogrefe, C.,
Luecken, D. J., Bash, J. O., Roselle, S. J., Pleim, J. E., Foroutan, H.,
Hutzell, W. T., Pouliot, G. A., Sarwar, G., Fahey, K. M., Gantt, B., Gilliam,
R. C., Heath, N. K., Kang, D., Mathur, R., Schwede, D. B., Spero, T. L.,
Wong, D. C., and Young, J. O.: Description and evaluation of the Community
Multiscale Air Quality (CMAQ) modeling system version 5.1, Geosci. Model
Dev., 10, 1703–1732, https://doi.org/10.5194/gmd-10-1703-2017, 2017.
Baergen, A. M. and Donaldson, D. J.: Photochemical Renoxification of Nitric
Acid on Real Urban Grime, Environ. Sci. Technol., 47,
815–820, https://doi.org/10.1021/es3037862, 2013.
Bernard, F., Cazaunau, M., Grosselin, B., Zhou, B., Zheng, J., Liang, P.,
Zhang, Y. J., Ye, X. N., Daele, V., Mu, Y. J., Zhang, R. Y., Chen, J. M.,
and Mellouki, A.: Measurements of nitrous acid (HONO) in urban area of
Shanghai, China, Environ. Sci. Pollut. Res., 23,
5818–5829, https://doi.org/10.1007/s11356-015-5797-4, 2016.
Cao, J.-J., Shen, Z.-X., Chow, J. C., Watson, J. G., Lee, S.-C., Tie, X.-X.,
Ho, K.-F., Wang, G.-H., and Han, Y.-M.: Winter and Summer PM2.5 Chemical
Compositions in Fourteen Chinese Cities, J. Air Waste Manage. Assoc., 62,
1214–1226, https://doi.org/10.1080/10962247.2012.701193, 2012.
Chan, C. K. and Yao, X.: Air pollution in mega cities in China, Atmos.
Environ., 42, 1–42, https://doi.org/10.1016/j.atmosenv.2007.09.003, 2008.
Chen, F. and Dudhia, J.: Coupling an advanced land surface-hydrology model
with the Penn State-NCAR MM5 modeling system. Part I: Model implementation
and sensitivity, Mon. Weather Rev., 129, 569–585,
https://doi.org/10.1175/1520-0493(2001)129<0569:caalsh>2.0.co;2, 2001.
Czader, B. H., Rappenglück, B., Percell, P., Byun, D. W., Ngan, F., and Kim,
S.: Modeling nitrous acid and its impact on ozone and hydroxyl radical during
the Texas Air Quality Study 2006, Atmos. Chem. Phys., 12, 6939–6951,
https://doi.org/10.5194/acp-12-6939-2012, 2012.
Elshorbany, Y. F., Kleffmann, J., Kurtenbach, R., Lissi, E., Rubio, M.,
Villena, G., Gramsch, E., Rickard, A. R., Pilling, M. J., and Wiesen, P.:
Seasonal dependence of the oxidation capacity of the city of Santiago de
Chile, Atmos. Environ., 44, 5383–5394,
https://doi.org/10.1016/j.atmosenv.2009.08.036, 2010.
Finlayson-Pitts, B. J. and Pitts Jr., J. N.: Chemistry of the Upper and
Lower Atmosphere: Theory, Experiments, and Applications, Academic Press, San
Diego, CA, 2000.
Finlayson-Pitts, B. J., Wingen, L. M., Sumner, A. L., Syomin, D., and
Ramazan, K. A.: The heterogeneous hydrolysis of NO2 in laboratory systems
and in outdoor and indoor atmospheres: An integrated mechanism, Phys.
Chem. Chem. Phys., 5, 223–242, https://doi.org/10.1039/b208564j, 2003.
Guenther, A., Karl, T., Harley, P., Wiedinmyer, C., Palmer, P. I., and Geron,
C.: Estimates of global terrestrial isoprene emissions using MEGAN (Model of
Emissions of Gases and Aerosols from Nature), Atmos. Chem. Phys., 6,
3181–3210, https://doi.org/10.5194/acp-6-3181-2006, 2006.
Gutzwiller, L., Arens, F., Baltensperger, U., Gaggeler, H. W., and Ammann,
M.: Significance of semivolatile diesel exhaust organics for secondary HONO
formation, Environ. Sci. Technol., 36, 677–682,
https://doi.org/10.1021/es015673b, 2002.
He, Y., Zhou, X. L., Hou, J., Gao, H. L., and Bertman, S. B.: Importance of
dew in controlling the air-surface exchange of HONO in rural forested
environments, Geophys. Res. Lett., 33, L02813,
https://doi.org/10.1029/2005gl024348, 2006.
Heland, J., Kleffmann, J., Kurtenbach, R., and Wiesen, P.: A new instrument
to measure gaseous nitrous acid (HONO) in the atmosphere, Environ.
Sci. Technol., 35, 3207–3212, https://doi.org/10.1021/es000303t, 2001.
Hong, S. Y., Noh, Y., and Dudhia, J.: A new vertical diffusion package with
an explicit treatment of entrainment processes, Mon. Weather Rev., 134,
2318–2341, https://doi.org/10.1175/mwr3199.1, 2006.
Hou, S., Tong, S., Ge, M., and An, J.: Comparison of atmospheric nitrous
acid during severe haze and clean periods in Beijing, China, Atmos.
Environ., 124, 199–206, https://doi.org/10.1016/j.atmosenv.2015.06.023, 2016.
Huang, R. J., Yang, L., Cao, J. J., Wang, Q. Y., Tie, X. X., Ho, K. F.,
Shen, Z. X., Zhang, R. J., Li, G. H., Zhu, C. S., Zhang, N. N., Dai, W. T.,
Zhou, J. M., Liu, S. X., Chen, Y., Chen, J., and O'Dowd, C. D.:
Concentration and sources of atmospheric nitrous acid (HONO) at an urban
site in Western China, Sci. Total Environ., 593, 165–172,
https://doi.org/10.1016/j.scitotenv.2017.02.166, 2017.
Kain, J. S.: The Kain-Fritsch convective parameterization: An update,
J. Appl. Meteorol., 43, 170–181,
https://doi.org/10.1175/1520-0450(2004)043<0170:tkcpau>2.0.co;2, 2004.
Kleffmann, J., Gavriloaiei, T., Hofzumahaus, A., Holland, F., Koppmann, R.,
Rupp, L., Schlosser, E., Siese, M., and Wahner, A.: Daytime formation of
nitrous acid: A major source of OH radicals in a forest, Geophys.
Res. Lett., 32, L05818, https://doi.org/10.1029/2005gl022524, 2005.
Kurtenbach, R., Becker, K. H., Gomes, J. A. G., Kleffmann, J., Lorzer, J.
C., Spittler, M., Wiesen, P., Ackermann, R., Geyer, A., and Platt, U.:
Investigations of emissions and heterogeneous formation of HONO in a road
traffic tunnel, Atmos. Environ., 35, 3385–3394,
https://doi.org/10.1016/s1352-2310(01)00138-8, 2001.
Li, D., Xue, L., Wen, L., Wang, X., Chen, T., Mellouki, A., Chen, J., and
Wang, W.: Characteristics and sources of nitrous acid in an urban atmosphere
of northern China: Results from 1-yr continuous observations, Atmos.
Environ., 182, 296–306, https://doi.org/10.1016/j.atmosenv.2018.03.033, 2018a.
Li, G., Lei, W., Zavala, M., Volkamer, R., Dusanter, S., Stevens, P., and
Molina, L. T.: Impacts of HONO sources on the photochemistry in Mexico City
during the MCMA-2006/MILAGO Campaign, Atmos. Chem. Phys., 10, 6551–6567,
https://doi.org/10.5194/acp-10-6551-2010, 2010.
Li, Q., Zhang, L., Wang, T., Wang, Z., Fu, X., and Zhang, Q.: “New” Reactive
Nitrogen Chemistry Reshapes the Relationship of Ozone to Its Precursors,
Environ. Sci. Technol., 52, 2810–2818,
https://doi.org/10.1021/acs.est.7b05771, 2018b.
Li, X., Brauers, T., Häseler, R., Bohn, B., Fuchs, H., Hofzumahaus, A.,
Holland, F., Lou, S., Lu, K. D., Rohrer, F., Hu, M., Zeng, L. M., Zhang, Y.
H., Garland, R. M., Su, H., Nowak, A., Wiedensohler, A., Takegawa, N., Shao,
M., and Wahner, A.: Exploring the atmospheric chemistry of nitrous acid
(HONO) at a rural site in Southern China, Atmos. Chem. Phys., 12, 1497–1513,
https://doi.org/10.5194/acp-12-1497-2012, 2012.
Li, Y., An, J., Min, M., Zhang, W., Wang, F., and Xie, P.: Impacts of HONO
sources on the air quality in Beijing, Tianjin and Hebei Province of China,
Atmos. Environ., 45, 4735–4744, https://doi.org/10.1016/j.atmosenv.2011.04.086,
2011.
Li, Z., Xue, L., Yang, X., Zha, Q., Tham, Y. J., Yan, C., Louie, P. K. K.,
Luk, C. W. Y., Wang, T., and Wang, W.: Oxidizing capacity of the rural
atmosphere in Hong Kong, Southern China, Sci. Total Environ.,
612, 1114–1122, https://doi.org/10.1016/j.scitotenv.2017.08.310, 2018c.
Liang, Y. T., Zha, Q. Z., Wang, W. H., Cui, L., Lui, K. H., Ho, K. F., Wang,
Z., Lee, S. C., and Wang, T.: Revisiting nitrous acid (HONO) emission from
on-road vehicles: A tunnel study with a mixed fleet, J. Air Waste Manage.
Assoc., 67, 797–805, https://doi.org/10.1080/10962247.2017.1293573, 2017.
Lin, Y. L., Farley, R. D., and Orville, H. D.: Bulk parameterization of the
snow field in a cloud model, J. Clim. Appl. Meteorol., 22,
1065–1092, https://doi.org/10.1175/1520-0450(1983)022<1065:bpotsf>2.0.co;2, 1983.
Lu, K. D., Rohrer, F., Holland, F., Fuchs, H., Bohn, B., Brauers, T., Chang,
C. C., Häseler, R., Hu, M., Kita, K., Kondo, Y., Li, X., Lou, S. R., Nehr,
S., Shao, M., Zeng, L. M., Wahner, A., Zhang, Y. H., and Hofzumahaus, A.:
Observation and modelling of OH and HO2 concentrations in the Pearl River
Delta 2006: a missing OH source in a VOC rich atmosphere, Atmos. Chem. Phys.,
12, 1541–1569, https://doi.org/10.5194/acp-12-1541-2012, 2012.
Ma, Q., Cai, S., Wang, S., Zhao, B., Martin, R. V., Brauer, M., Cohen, A.,
Jiang, J., Zhou, W., Hao, J., Frostad, J., Forouzanfar, M. H., and Burnett,
R. T.: Impacts of coal burning on ambient PM2.5 pollution in China, Atmos.
Chem. Phys., 17, 4477–4491, https://doi.org/10.5194/acp-17-4477-2017, 2017.
Mao, J. Q., Ren, X. R., Chen, S. A., Brune, W. H., Chen, Z., Martinez, M.,
Harder, H., Lefer, B., Rappengluck, B., Flynn, J., and Leuchner, M.:
Atmospheric oxidation capacity in the summer of Houston 2006: Comparison
with summer measurements in other metropolitan studies, Atmos.
Environ., 44, 4107–4115, https://doi.org/10.1016/j.atmosenv.2009.01.013, 2010.
Meusel, H., Tamm, A., Kuhn, U., Wu, D., Leifke, A. L., Fiedler, S.,
Ruckteschler, N., Yordanova, P., Lang-Yona, N., Pöhlker, M., Lelieveld, J.,
Hoffmann, T., Pöschl, U., Su, H., Weber, B., and Cheng, Y.: Emission of
nitrous acid from soil and biological soil crusts represents an important
source of HONO in the remote atmosphere in Cyprus, Atmos. Chem. Phys., 18,
799–813, https://doi.org/10.5194/acp-18-799-2018, 2018.
Mlawer, E. J. and Clough, S. A.: Shortwave clear-sky model measurement
intercomparison using RRTM, Proceedings of the 8 th Atmospheric Radiation
Measurement (ARM) Science Team Meeting, Tucson, Arizona, USA, 1998.
Mlawer, E. J., Taubman, S. J., Brown, P. D., Iacono, M. J., and Clough, S.
A.: Radiative transfer for inhomogeneous atmospheres: RRTM, a validated
correlated-k model for the longwave, J. Geophys.
Res.-Atmos., 102, 16663–16682, https://doi.org/10.1029/97jd00237, 1997.
Monge, M. E., D'Anna, B., Mazri, L., Giroir-Fendler, A., Ammann, M.,
Donaldson, D. J., and George, C.: Light changes the atmospheric reactivity
of soot, Proc. Natl. Acad. Sci. USA, 107, 6605–6609, https://doi.org/10.1073/pnas.0908341107, 2010.
Ndour, M., D'Anna, B., George, C., Ka, O., Balkanski, Y., Kleffmann, J.,
Stemmler, K., and Ammann, M.: Photoenhanced uptake of NO2 on mineral dust:
Laboratory experiments and model simulations, Geophys. Res. Lett.,
35, L05812, https://doi.org/10.1029/2007gl032006, 2008.
Oswald, R., Behrendt, T., Ermel, M., Wu, D., Su, H., Cheng, Y., Breuninger,
C., Moravek, A., Mougin, E., Delon, C., Loubet, B., Pommerening-Roser, A.,
Sorgel, M., Poschl, U., Hoffmann, T., Andreae, M. O., Meixner, F. X., and
Trebs, I.: HONO Emissions from Soil Bacteria as a Major Source of
Atmospheric Reactive Nitrogen, Science, 341, 1233–1235,
https://doi.org/10.1126/science.1242266, 2013.
Pan, Y. Y., Li, N., Zheng, J. Y., Yin, S. S., Li, C., Yang, J., Zhong, L.
J., and Chen, D. H.: Emission inventory and characteristics of anthropogenic
air pollutant sources in Guangdong Province Acta Scientiae Circumstantiae,
Acta Scientiae Circumstantiae, 35, 2655–2669, 2014.
Pathak, R. K., Wu, W. S., and Wang, T.: Summertime PM2.5 ionic species in
four major cities of China: nitrate formation in an ammonia-deficient
atmosphere, Atmos. Chem. Phys., 9, 1711–1722,
https://doi.org/10.5194/acp-9-1711-2009, 2009.
Pathak, R. K., Wang, T., Ho, K. F., and Lee, S. C.: Characteristics of
summertime PM2.5 organic and elemental carbon in four major Chinese cities:
Implications of high acidity for water-soluble organic carbon (WSOC),
Atmos. Environ., 45, 318–325, https://doi.org/10.1016/j.atmosenv.2010.10.021, 2011.
Qin, M., Xie, P. H., Su, H., Gu, J. W., Peng, F. M., Li, S. W., Zeng, L. M.,
Liu, J. G., Liu, W. Q., and Zhang, Y. H.: An observational study of the
HONO−NO2 coupling at an urban site in Guangzhou City, South China,
Atmos. Environ., 43, 5731–5742, https://doi.org/10.1016/j.atmosenv.2009.08.017,
2009.
Ren, X. R., Harder, H., Martinez, M., Lesher, R. L., Oliger, A., Simpas, J.
B., Brune, W. H., Schwab, J. J., Demerjian, K. L., He, Y., Zhou, X. L., and
Gao, H. G.: OH and HO2 chemistry in the urban atmosphere of New York City,
Atmos. Environ., 37, 3639–3651, https://doi.org/10.1016/s1352-2310(03)00459-x, 2003.
Sarwar, G., Roselle, S. J., Mathur, R., Appel, W., Dennis, R. L., and Vogel,
B.: A comparison of CMAQ HONO predictions with observations from the
northeast oxidant and particle study, Atmos. Environ., 42,
5760–5770, https://doi.org/10.1016/j.atmosenv.2007.12.065, 2008.
Stemmler, K., Ndour, M., Elshorbany, Y., Kleffmann, J., D'Anna, B., George,
C., Bohn, B., and Ammann, M.: Light induced conversion of nitrogen dioxide
into nitrous acid on submicron humic acid aerosol, Atmos. Chem. Phys., 7,
4237–4248, https://doi.org/10.5194/acp-7-4237-2007, 2007.
Stutz, J., Alicke, B., Ackermann, R., Geyer, A., Wang, S. H., White, A. B.,
Williams, E. J., Spicer, C. W., and Fast, J. D.: Relative humidity
dependence of HONO chemistry in urban areas, J. Geophys.
Res.-Atmos., 109, D03307, https://doi.org/10.1029/2003jd004135, 2004.
Su, H., Cheng, Y. F., Shao, M., Gao, D. F., Yu, Z. Y., Zeng, L. M., Slanina,
J., Zhang, Y. H., and Wiedensohler, A.: Nitrous acid (HONO) and its daytime
sources at a rural site during the 2004 PRIDE-PRD experiment in China,
J. Geophys. Res.-Atmos., 113, D14312,
https://doi.org/10.1029/2007jd009060, 2008.
Su, H., Cheng, Y. F., Oswald, R., Behrendt, T., Trebs, I., Meixner, F. X.,
Andreae, M. O., Cheng, P., Zhang, Y., and Poschl, U.: Soil Nitrite as a
Source of Atmospheric HONO and OH Radicals, Science, 333, 1616–1618,
https://doi.org/10.1126/science.1207687, 2011.
Tan, J. H., Duan, J. C., He, K. B., Ma, Y. L., Duan, F. K., Chen, Y., and
Fu, J. M.: Chemical characteristics of PM2.5 during a typical haze episode
in Guangzhou, J. Environ. Sci., 21, 774–781, https://doi.org/10.1016/s1001-0742(08)62340-2,
2009.
Tham, Y. J., Wang, Z., Li, Q., Yun, H., Wang, W., Wang, X., Xue, L., Lu, K.,
Ma, N., Bohn, B., Li, X., Kecorius, S., Größ, J., Shao, M., Wiedensohler, A.,
Zhang, Y., and Wang, T.: Significant concentrations of nitryl chloride
sustained in the morning: investigations of the causes and impacts on ozone
production in a polluted region of northern China, Atmos. Chem. Phys., 16,
14959–14977, https://doi.org/10.5194/acp-16-14959-2016, 2016.
VandenBoer, T. C., Markovic, M. Z., Sanders, J. E., Ren, X., Pusede, S. E.,
Browne, E. C., Cohen, R. C., Zhang, L., Thomas, J., Brune, W. H., and Murphy, J.
G.: Evidence for a nitrous acid (HONO) reservoir at the ground surface in
Bakersfield, CA, during CalNex 2010, J. Geophys. Res.-Atmos., 119,
9093–9106, https://doi.org/10.1002/2013JD020971, 2014
Wang, G., Zhang, R., Gomez, M. E., Yang, L., Zamora, M. L., Hu, M., Lin, Y.,
Peng, J., Guo, S., Meng, J., Li, J., Cheng, C., Hu, T., Ren, Y., Wang, Y.,
Gao, J., Cao, J., An, Z., Zhou, W., Li, G., Wang, J., Tian, P.,
Marrero-Ortiz, W., Secrest, J., Du, Z., Zheng, J., Shang, D., Zeng, L.,
Shao, M., Wang, W., Huang, Y., Wang, Y., Zhu, Y., Li, Y., Hu, J., Pan, B.,
Cai, L., Cheng, Y., Ji, Y., Zhang, F., Rosenfeld, D., Liss, P. S., Duce, R.
A., Kolb, C. E., and Molina, M. J.: Persistent sulfate formation from London
Fog to Chinese haze, Proc. Natl. Acad. Sci.
USA, 113, 13630–13635, https://doi.org/10.1073/pnas.1616540113, 2016.
Wang, J., Zhang, X., Guo, J., Wang, Z., and Zhang, M.: Observation of
nitrous acid (HONO) in Beijing, China: Seasonal variation, nocturnal
formation and daytime budget, The Sci. Total Environ., 587, 350–359,
https://doi.org/10.1016/j.scitotenv.2017.02.159, 2017.
Wang, T. and Kwok, J. Y. H.: Measurement and analysis of a multiday
photochemical smog episode in the Pearl River delta of China, J.
Appl. Meteorol., 42, 404–416,
https://doi.org/10.1175/1520-0450(2003)042<0404:maaoam>2.0.co;2, 2003.
Wang, T., Xue, L., Brimblecombe, P., Lam, Y. F., Li, L., and Zhang, L.:
Ozone pollution in China: A review of concentrations, meteorological
influences, chemical precursors, and effects, Sci. Total
Environ., 575, 1582–1596, https://doi.org/10.1016/j.scitotenv.2016.10.081, 2017.
Wang, X. M., Ding, X., Fu, X. X., He, Q. F., Wang, S. Y., Bernard, F., Zhao,
X. Y., and Wu, D.: Aerosol scattering coefficients and major chemical
compositions of fine particles observed at a rural site hit the central
Pearl River Delta, South China, J. Environ. Sci., 24, 72–77,
https://doi.org/10.1016/s1001-0742(11)60730-4, 2012.
Xu, J., Zhang, Y., and Wang, W.: Numerical study on the impacts of
heterogeneous reactions on ozone formation in the Beijing urban area,
Adv. Atmos. Sci., 23, 605–614, https://doi.org/10.1007/s00376-006-0605-1,
2006.
Xu, Z., Wang, T., Xue, L. K., Louie, P. K. K., Luk, C. W. Y., Gao, J., Wang,
S. L., Chai, F. H., and Wang, W. X.: Evaluating the uncertainties of thermal
catalytic conversion in measuring atmospheric nitrogen dioxide at four
differently polluted sites in China, Atmos. Environ., 76, 221–226,
https://doi.org/10.1016/j.atmosenv.2012.09.043, 2013.
Xu, Z., Wang, T., Wu, J. Q., Xue, L. K., Chan, J., Zha, Q. Z., Zhou, S. Z.,
Louie, P. K. K., and Luk, C. W. Y.: Nitrous acid (HONO) in a polluted
subtropical atmosphere: Seasonal variability, direct vehicle emissions and
heterogeneous production at ground surface, Atmos. Environ., 106,
100–109, https://doi.org/10.1016/j.atmosenv.2015.01.061, 2015.
Xue, L., Gu, R., Wang, T., Wang, X., Saunders, S., Blake, D., Louie, P. K.
K., Luk, C. W. Y., Simpson, I., Xu, Z., Wang, Z., Gao, Y., Lee, S., Mellouki,
A., and Wang, W.: Oxidative capacity and radical chemistry in the polluted
atmosphere of Hong Kong and Pearl River Delta region: analysis of a severe
photochemical smog episode, Atmos. Chem. Phys., 16, 9891–9903,
https://doi.org/10.5194/acp-16-9891-2016, 2016.
Xue, L. K., Wang, T., Gao, J., Ding, A. J., Zhou, X. H., Blake, D. R., Wang,
X. F., Saunders, S. M., Fan, S. J., Zuo, H. C., Zhang, Q. Z., and Wang, W.
X.: Ground-level ozone in four Chinese cities: precursors, regional transport
and heterogeneous processes, Atmos. Chem. Phys., 14, 13175–13188,
https://doi.org/10.5194/acp-14-13175-2014, 2014.
Ye, C., Gao, H., Zhang, N., and Zhou, X.: Photolysis of Nitric Acid and
Nitrate on Natural and Artificial Surfaces, Environ. Sci.
Technol., 50, 3530–3536, https://doi.org/10.1021/acs.est.5b05032, 2016a.
Ye, C. X., Zhou, X. L., Pu, D., Stutz, J., Festa, J., Spolaor, M., Tsai, C.,
Cantrell, C., Mauldin, R. L., Campos, T., Weinheimer, A., Hornbrook, R. S.,
Apel, E. C., Guenther, A., Kaser, L., Yuan, B., Karl, T., Haggerty, J.,
Hall, S., Ullmann, K., Smith, J. N., Ortega, J., and Knote, C.: Rapid
cycling of reactive nitrogen in the marine boundary layer, Nature, 532,
489–491, https://doi.org/10.1038/nature17195, 2016b.
Ye, C., Zhang, N., Gao, H., and Zhou, X.: Photolysis of Particulate Nitrate
as a Source of HONO and NOx, Environ. Sci. Technol., 51,
6849–6856, https://doi.org/10.1021/acs.est.7b00387, 2017.
Yue, D. L., Zhong, L. J., Zhang, T., Shen, J., Zhou, Y., Zeng, L. M., Dong,
H. B., and Ye, S. Q.: Pollution Properties of Water-Soluble Secondary
Inorganic Ions in Atmospheric PM2.5 in the Pearl River Delta Region, Aerosol
Air Qual. Res., 15, 1737–1747, https://doi.org/10.4209/aaqr.2014.12.0333, 2015.
Yun, H., Wang, Z., Zha, Q., Wang, W., Xue, L., Zhang, L., Li, Q., Cui, L.,
Lee, S., Poon, S. C. N., and Wang, T.: Nitrous acid in a street canyon
environment: Sources and contributions to local oxidation capacity,
Atmos. Environ., 167, 223–234, https://doi.org/10.1016/j.atmosenv.2017.08.018, 2017.
Yun, H., Wang, W., Wang, T., Xia, M., Yu, C., Wang, Z., Poon, S. C. N., Yue,
D., and Zhou, Y.: Nitrate formation from heterogeneous uptake of dinitrogen
pentoxide during a severe winter haze in southern China, Atmos. Chem. Phys.,
18, 17515–17527, https://doi.org/10.5194/acp-18-17515-2018, 2018.
Zha, Q., Xue, L., Wang, T., Xu, Z., Yeung, C., Louie, P. K. K., and Luk, C.
W. Y.: Large conversion rates of NO2 to HNO2 observed in air masses from the
South China Sea: Evidence of strong production at sea surface?, Geophys.
Res. Lett., 41, 7710–7715, https://doi.org/10.1002/2014gl061429, 2014.
Zhang, L., Wang, T., Zhang, Q., Zheng, J., Xu, Z., and Lv, M.: Potential
sources of nitrous acid (HONO) and their impacts on ozone: A WRF-Chem study
in a polluted subtropical region, J. Geophys.
Res.-Atmos., 121, 3645–3662, https://doi.org/10.1002/2015jd024468, 2016.
Zhang, L., Li, Q., Wang, T., Ahmadov, R., Zhang, Q., Li, M., and Lv, M.:
Combined impacts of nitrous acid and nitryl chloride on lower-tropospheric
ozone: new module development in WRF-Chem and application to China, Atmos.
Chem. Phys., 17, 9733–9750, https://doi.org/10.5194/acp-17-9733-2017, 2017.
Zhang, Q., Streets, D. G., Carmichael, G. R., He, K. B., Huo, H., Kannari,
A., Klimont, Z., Park, I. S., Reddy, S., Fu, J. S., Chen, D., Duan, L., Lei,
Y., Wang, L. T., and Yao, Z. L.: Asian emissions in 2006 for the NASA INTEX-B
mission, Atmos. Chem. Phys., 9, 5131–5153,
https://doi.org/10.5194/acp-9-5131-2009, 2009.
Zhang, Y. H., Su, H., Zhong, L. J., Cheng, Y. F., Zeng, L. M., Wang, X. S.,
Xiang, Y. R., Wang, J. L., Gao, D. F., Shao, M., Fan, S. J., and Liu, S. C.:
Regional ozone pollution and observation-based approach for analyzing
ozone-precursor relationship during the PRIDE-PRD2004 campaign, Atmos.
Environ., 42, 6203–6218, https://doi.org/10.1016/j.atmosenv.2008.05.002, 2008.
Zheng, B., Tong, D., Li, M., Liu, F., Hong, C., Geng, G., Li, H., Li, X.,
Peng, L., Qi, J., Yan, L., Zhang, Y., Zhao, H., Zheng, Y., He, K., and
Zhang, Q.: Trends in China's anthropogenic emissions since 2010 as the
consequence of clean air actions, Atmos. Chem. Phys., 18, 14095–14111,
https://doi.org/10.5194/acp-18-14095-2018, 2018
Zheng, J., Zhong, L., Wang, T., Louie, P. K. K., and Li, Z.: Ground-level
ozone in the Pearl River Delta region: Analysis of data from a recently
established regional air quality monitoring network, Atmos.
Environ., 44, 814–823, https://doi.org/10.1016/j.atmosenv.2009.11.032, 2010.
Zhou, X. L., Gao, H. L., He, Y., Huang, G., Bertman, S. B., Civerolo, K.,
and Schwab, J.: Nitric acid photolysis on surfaces in low-NOx environments:
Significant atmospheric implications, Geophys. Res. Lett., 30, 2217,
https://doi.org/10.1029/2003gl018620, 2003.
Zhou, X. L., Zhang, N., TerAvest, M., Tang, D., Hou, J., Bertman, S.,
Alaghmand, M., Shepson, P. B., Carroll, M. A., Griffith, S., Dusanter, S.,
and Stevens, P. S.: Nitric acid photolysis on forest canopy surface as a
source for tropospheric nitrous acid, Nat. Geosci., 4, 440–443,
https://doi.org/10.1038/ngeo1164, 2011.
Zou, Y., Deng, X. J., Zhu, D., Gong, D. C., Wang, H., Li, F., Tan, H. B.,
Deng, T., Mai, B. R., Liu, X. T., and Wang, B. G.: Characteristics of 1 year
of observational data of VOCs, NOx and O3 at a suburban site in Guangzhou,
China, Atmos. Chem. Phys., 15, 6625–6636,
https://doi.org/10.5194/acp-15-6625-2015, 2015.
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This study has identified the major contributors to the observed high HONO levels during a severe winter pollution episode and highlighted the importance of HONO chemistry in the combined photochemical and haze pollution in a subtropical region. It also highlighted the critical need to include and update HONO sources in regional air quality models in order to predict ozone and other secondary pollutants better during heavy pollution events in southern China and similar regions.
This study has identified the major contributors to the observed high HONO levels during a...
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