Articles | Volume 23, issue 19
https://doi.org/10.5194/acp-23-12867-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-23-12867-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Oct 2023
Research article |
| 13 Oct 2023
| 13 Oct 2023
Changes in surface ozone in South Korea on diurnal to decadal timescales for the period of 2001–2021
Irreversible Climate Change Research Center, Yonsei University, Seoul, South Korea
Kyoung-Min Kim
Department of Atmospheric Sciences, Yonsei University, Seoul, South
Korea
Yujoo Jeong
Irreversible Climate Change Research Center, Yonsei University, Seoul, South Korea
Department of Atmospheric Sciences, Yonsei University, Seoul, South
Korea
Seunghwan Seo
Department of Atmospheric Sciences, Yonsei University, Seoul, South
Korea
Yeonsu Park
Irreversible Climate Change Research Center, Yonsei University, Seoul, South Korea
Department of Atmospheric Sciences, Yonsei University, Seoul, South
Korea
Jeongyeon Kim
Irreversible Climate Change Research Center, Yonsei University, Seoul, South Korea
Department of Atmospheric Sciences, Yonsei University, Seoul, South
Korea
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Three emission inventories were evaluated for East Asia using data acquired during a field campaign in 2016. The inventories successfully reproduced the daily variations of ozone and nitrogen dioxide. However, the spatial distributions of model ozone did not fully agree with the observations. Additionally, all simulations underestimated carbon monoxide and volatile organic compound (VOC) levels. Increasing VOC emissions over South Korea resulted in improved ozone simulations.
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Related subject area
Subject: Gases | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Xiaoyi Zhang, Wanyun Xu, Weili Lin, Gen Zhang, Jinjian Geng, Li Zhou, Huarong Zhao, Sanxue Ren, Guangsheng Zhou, Jianmin Chen, and Xiaobin Xu
Atmos. Chem. Phys., 24, 12323–12340, https://doi.org/10.5194/acp-24-12323-2024, https://doi.org/10.5194/acp-24-12323-2024, 2024
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Ozone (O3) deposition is a key process that removes surface O3, affecting air quality, ecosystems and climate change. We conducted O3 deposition measurement over a wheat canopy using a newly relaxed eddy accumulation flux system. Large variabilities in O3 deposition were detected, mainly determined by crop growth and modulated by various environmental factors. More O3 deposition observations over different surfaces are needed for exploring deposition mechanisms and model optimization.
Honglei Wang, David W. Tarasick, Jane Liu, Herman G. J. Smit, Roeland Van Malderen, Lijuan Shen, Romain Blot, and Tianliang Zhao
Atmos. Chem. Phys., 24, 11927–11942, https://doi.org/10.5194/acp-24-11927-2024, https://doi.org/10.5194/acp-24-11927-2024, 2024
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In this study, we identify 23 suitable pairs of sites from World Ozone and Ultraviolet Radiation Data Centre (WOUDC) and In-service Aircraft for a Global Observing System (IAGOS) datasets (1995 to 2021), compare the average vertical distributions of tropospheric O3 from ozonesonde and aircraft measurements, and analyze the differences based on ozonesonde type and station–airport distance.
Noémie Taquet, Wolfgang Stremme, María Eugenia González del Castillo, Victor Almanza, Alejandro Bezanilla, Olivier Laurent, Carlos Alberti, Frank Hase, Michel Ramonet, Thomas Lauvaux, Ke Che, and Michel Grutter
Atmos. Chem. Phys., 24, 11823–11848, https://doi.org/10.5194/acp-24-11823-2024, https://doi.org/10.5194/acp-24-11823-2024, 2024
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We characterize the variability in CO and CO2 emissions over Mexico City from long-term time-resolved Fourier transform infrared spectroscopy solar absorption and surface measurements from 2013 to 2021. Using the average intraday CO growth rate from total columns, the average CO / CO2 ratio and TROPOMI data, we estimate the interannual variability in the CO and CO2 anthropogenic emissions of Mexico City, highlighting the effect of an unprecedented drop in activity due to the COVID-19 lockdown.
Akima Ringsdorf, Achim Edtbauer, Bruna Holanda, Christopher Poehlker, Marta O. Sá, Alessandro Araújo, Jürgen Kesselmeier, Jos Lelieveld, and Jonathan Williams
Atmos. Chem. Phys., 24, 11883–11910, https://doi.org/10.5194/acp-24-11883-2024, https://doi.org/10.5194/acp-24-11883-2024, 2024
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We show the average height distribution of separately observed aldehydes and ketones over a day and discuss their rainforest-specific sources and sinks as well as their seasonal changes above the Amazon. Ketones have much longer atmospheric lifetimes than aldehydes and thus different implications for atmospheric chemistry. However, they are commonly observed together, which we overcome by measuring with a NO+ chemical ionization mass spectrometer for the first time in the Amazon rainforest.
Theresa Harlass, Rebecca Dischl, Stefan Kaufmann, Raphael Märkl, Daniel Sauer, Monika Scheibe, Paul Stock, Tiziana Bräuer, Andreas Dörnbrack, Anke Roiger, Hans Schlager, Ulrich Schumann, Magdalena Pühl, Tobias Schripp, Tobias Grein, Linda Bondorf, Charles Renard, Maxime Gauthier, Mark Johnson, Darren Luff, Paul Madden, Peter Swann, Denise Ahrens, Reetu Sallinen, and Christiane Voigt
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Emissions from aircraft have a direct impact on our climate. Here, we present airborne and ground-based measurement data of nitrogen oxides that were collected in the exhaust of an Airbus aircraft. We study the impact of burning fossil and sustainable aviation fuel on nitrogen oxide emissions at different engine settings related to combustor temperature, pressure and fuel flow. Further, we compare observations with engine emission models.
Simone T. Andersen, Max R. McGillen, Chaoyang Xue, Tobias Seubert, Patrick Dewald, Gunther N. T. E. Türk, Jan Schuladen, Cyrielle Denjean, Jean-Claude Etienne, Olivier Garrouste, Marina Jamar, Sergio Harb, Manuela Cirtog, Vincent Michoud, Mathieu Cazaunau, Antonin Bergé, Christopher Cantrell, Sebastien Dusanter, Bénédicte Picquet-Varrault, Alexandre Kukui, Abdelwahid Mellouki, Lucy J. Carpenter, Jos Lelieveld, and John N. Crowley
Atmos. Chem. Phys., 24, 11603–11618, https://doi.org/10.5194/acp-24-11603-2024, https://doi.org/10.5194/acp-24-11603-2024, 2024
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Using measurements of various trace gases in a suburban forest near Paris in the summer of 2022, we were able to gain insight into the sources and sinks of NOx (NO+NO2) with a special focus on their nighttime chemical and physical loss processes. NO was observed as a result of nighttime soil emissions when O3 levels were strongly depleted by deposition. NO oxidation products were not observed at night, indicating that soil and/or foliar surfaces are an efficient sink of reactive N.
Lee Tiszenkel, James H. Flynn, and Shan-Hu Lee
Atmos. Chem. Phys., 24, 11351–11363, https://doi.org/10.5194/acp-24-11351-2024, https://doi.org/10.5194/acp-24-11351-2024, 2024
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Ammonia and amines are important ingredients for aerosol formation in urban environments, but the measurements of these compounds are extremely challenging. Our observations show that urban ammonia and amines in Houston are emitted from urban sources, and diurnal variations in their concentrations are likely governed by gas-to-particle conversion and emissions.
Arpit Awasthi, Baerbel Sinha, Haseeb Hakkim, Sachin Mishra, Varkrishna Mummidivarapu, Gurmanjot Singh, Sachin D. Ghude, Vijay Kumar Soni, Narendra Nigam, Vinayak Sinha, and Madhavan N. Rajeevan
Atmos. Chem. Phys., 24, 10279–10304, https://doi.org/10.5194/acp-24-10279-2024, https://doi.org/10.5194/acp-24-10279-2024, 2024
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We use 111 volatile organic compounds (VOCs), PM10, and PM2.5 in a positive matrix factorization (PMF) model to resolve 11 pollution sources validated with chemical fingerprints. Crop residue burning and heating account for ~ 50 % of the PM, while traffic and industrial emissions dominate the gas-phase VOC burden and formation potential of secondary organic aerosols (> 60 %). Non-tailpipe emissions from compressed-natural-gas-fuelled commercial vehicles dominate the transport sector's PM burden.
Luke D. Schiferl, Cong Cao, Bronte Dalton, Andrew Hallward-Driemeier, Ricardo Toledo-Crow, and Róisín Commane
Atmos. Chem. Phys., 24, 10129–10142, https://doi.org/10.5194/acp-24-10129-2024, https://doi.org/10.5194/acp-24-10129-2024, 2024
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Carbon monoxide (CO) is an air pollutant and an important indicator of the incomplete combustion of fossil fuels in cities. Using 4 years of winter and spring observations in New York City, we found that both the magnitude and variability of CO from the metropolitan area are greater than expected. Transportation emissions cannot explain the missing and variable CO, which points to energy from buildings as a likely underappreciated source of urban air pollution and greenhouse gas emissions.
Chengzhi Xing, Cheng Liu, Chunxiang Ye, Jingkai Xue, Hongyu Wu, Xiangguang Ji, Jinping Ou, and Qihou Hu
Atmos. Chem. Phys., 24, 10093–10112, https://doi.org/10.5194/acp-24-10093-2024, https://doi.org/10.5194/acp-24-10093-2024, 2024
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We identified the contributions of ozone (O3) and nitrous acid (HONO) to the production rates of hydroxide (OH) in vertical space on the Tibetan Plateau (TP). A new insight was offered: the contributions of HONO and O3 to the production rates of OH on the TP are even greater than in lower-altitudes areas. This study enriches the understanding of vertical distribution of atmospheric components and explains the strong atmospheric oxidation capacity (AOC) on the TP.
Baoye Hu, Naihua Chen, Rui Li, Mingqiang Huang, Jinsheng Chen, Youwei Hong, Lingling Xu, Xiaolong Fan, Mengren Li, Lei Tong, Qiuping Zheng, and Yuxiang Yang
EGUsphere, https://doi.org/10.5194/egusphere-2024-2631, https://doi.org/10.5194/egusphere-2024-2631, 2024
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Box modeling with the master chemical mechanism (MCM) was used to address the puzzle of summertime PAN formation and its association with aerosol pollution under high ozone conditions. The MCM model proves to be an ideal tool for investigating PAN photochemical formation (IOA=0.75). The model performed better during the clean period than during the haze period. Through the machine learning method of XGBoost, we found that the top three factors leading to simulation bias were NH3, NO3, and PM2.5.
Xinyuan Zhang, Lingling Wang, Nan Wang, Shuangliang Ma, Shenbo Wang, Ruiqin Zhang, Dong Zhang, Mingkai Wang, and Hongyu Zhang
Atmos. Chem. Phys., 24, 9885–9898, https://doi.org/10.5194/acp-24-9885-2024, https://doi.org/10.5194/acp-24-9885-2024, 2024
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This study highlights the importance of the redox reaction of NO2 with SO2 based on actual atmospheric observations. The particle pH in future China is expected to rise steadily. Consequently, this reaction could become a significant source of HONO in China. Therefore, it is crucial to coordinate the control of SO2, NOx, and NH3 emissions to avoid a rapid increase in the particle pH.
Jun Zhou, Chunsheng Zhang, Aiming Liu, Bin Yuan, Yan Wang, Wenjie Wang, Jie-Ping Zhou, Yixin Hao, Xiao-Bing Li, Xianjun He, Xin Song, Yubin Chen, Suxia Yang, Shuchun Yang, Yanfeng Wu, Bin Jiang, Shan Huang, Junwen Liu, Yuwen Peng, Jipeng Qi, Minhui Deng, Bowen Zhong, Yibo Huangfu, and Min Shao
Atmos. Chem. Phys., 24, 9805–9826, https://doi.org/10.5194/acp-24-9805-2024, https://doi.org/10.5194/acp-24-9805-2024, 2024
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In-depth understanding of the near-ground vertical variability in photochemical ozone (O3) formation is crucial for mitigating O3 pollution. Utilizing a self-built vertical observation system, a direct net photochemical O3 production rate detection system, and an observation-based model, we diagnosed the vertical distributions and formation mechanism of net photochemical O3 production rates and sensitivity in the Pearl River Delta region, one of the most O3-polluted areas in China.
Eleanor J. Derry, Tyler R. Elgiar, Taylor Y. Wilmot, Nicholas W. Hoch, Noah S. Hirshorn, Peter Weiss-Penzias, Christopher F. Lee, John C. Lin, A. Gannet Hallar, Rainer Volkamer, Seth N. Lyman, and Lynne E. Gratz
Atmos. Chem. Phys., 24, 9615–9643, https://doi.org/10.5194/acp-24-9615-2024, https://doi.org/10.5194/acp-24-9615-2024, 2024
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Mercury (Hg) is a globally distributed neurotoxic pollutant. Atmospheric deposition is the main source of Hg in ecosystems. However, measurement biases hinder understanding of the origins and abundance of the more bioavailable oxidized form. We used an improved, calibrated measurement system to study air mass composition and transport of atmospheric Hg at a remote mountaintop site in the central US. Oxidized Hg originated upwind in the low to middle free troposphere under clean, dry conditions.
Benjamin A. Nault, Katherine R. Travis, James H. Crawford, Donald R. Blake, Pedro Campuzano-Jost, Ronald C. Cohen, Joshua P. DiGangi, Glenn S. Diskin, Samuel R. Hall, L. Gregory Huey, Jose L. Jimenez, Kyung-Eun Min, Young Ro Lee, Isobel J. Simpson, Kirk Ullmann, and Armin Wisthaler
Atmos. Chem. Phys., 24, 9573–9595, https://doi.org/10.5194/acp-24-9573-2024, https://doi.org/10.5194/acp-24-9573-2024, 2024
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Ozone (O3) is a pollutant formed from the reactions of gases emitted from various sources. In urban areas, the density of human activities can increase the O3 formation rate (P(O3)), thus impacting air quality and health. Observations collected over Seoul, South Korea, are used to constrain P(O3). A high local P(O3) was found; however, local P(O3) was partly reduced due to compounds typically ignored. These observations also provide constraints for unmeasured compounds that will impact P(O3).
Fan Zhang, Binyu Xiao, Zeyu Liu, Yan Zhang, Chongguo Tian, Rui Li, Can Wu, Yali Lei, Si Zhang, Xinyi Wan, Yubao Chen, Yong Han, Min Cui, Cheng Huang, Hongli Wang, Yingjun Chen, and Gehui Wang
Atmos. Chem. Phys., 24, 8999–9017, https://doi.org/10.5194/acp-24-8999-2024, https://doi.org/10.5194/acp-24-8999-2024, 2024
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Mandatory use of low-sulfur fuel due to global sulfur limit regulations means large uncertainties in volatile organic compound (VOC) emissions. On-board tests of VOCs from nine cargo ships in China were carried out. Results showed that switching from heavy-fuel oil to diesel increased emission factor VOCs by 48 % on average, enhancing O3 and the secondary organic aerosol formation potential. Thus, implementing a global ultra-low-sulfur oil policy needs to be optimized in the near future.
Patrick Dewald, Tobias Seubert, Simone T. Andersen, Gunther N. T. E. Türk, Jan Schuladen, Max R. McGillen, Cyrielle Denjean, Jean-Claude Etienne, Olivier Garrouste, Marina Jamar, Sergio Harb, Manuela Cirtog, Vincent Michoud, Mathieu Cazaunau, Antonin Bergé, Christopher Cantrell, Sebastien Dusanter, Bénédicte Picquet-Varrault, Alexandre Kukui, Chaoyang Xue, Abdelwahid Mellouki, Jos Lelieveld, and John N. Crowley
Atmos. Chem. Phys., 24, 8983–8997, https://doi.org/10.5194/acp-24-8983-2024, https://doi.org/10.5194/acp-24-8983-2024, 2024
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In the scope of a field campaign in a suburban forest near Paris in the summer of 2022, we measured the reactivity of the nitrate radical NO3 towards biogenic volatile organic compounds (BVOCs; e.g. monoterpenes) mainly below but also above the canopy. NO3 reactivity was the highest during nights with strong temperature inversions and decreased strongly with height. Reactions with BVOCs were the main removal process of NO3 throughout the diel cycle below the canopy.
Jian Wang, Lei Xue, Qianyao Ma, Feng Xu, Gaobin Xu, Shibo Yan, Jiawei Zhang, Jianlong Li, Honghai Zhang, Guiling Zhang, and Zhaohui Chen
Atmos. Chem. Phys., 24, 8721–8736, https://doi.org/10.5194/acp-24-8721-2024, https://doi.org/10.5194/acp-24-8721-2024, 2024
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This study investigated the distribution and sources of non-methane hydrocarbons (NMHCs) in the lower atmosphere over the marginal seas of China. NMHCs, a subset of volatile organic compounds (VOCs), play a crucial role in atmospheric chemistry. Derived from systematic atmospheric sampling in coastal cities and marginal sea regions, this study offers valuable insights into the interaction between land and sea in shaping offshore atmospheric NMHCs.
Yusheng Zhang, Feixue Zheng, Zemin Feng, Chaofan Lian, Weigang Wang, Xiaolong Fan, Wei Ma, Zhuohui Lin, Chang Li, Gen Zhang, Chao Yan, Ying Zhang, Veli-Matti Kerminen, Federico Bianch, Tuukka Petäjä, Juha Kangasluoma, Markku Kulmala, and Yongchun Liu
Atmos. Chem. Phys., 24, 8569–8587, https://doi.org/10.5194/acp-24-8569-2024, https://doi.org/10.5194/acp-24-8569-2024, 2024
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The nitrous acid (HONO) budget was validated during a COVID-19 lockdown event. The main conclusions are (1) HONO concentrations showed a significant decrease from 0.97 to 0.53 ppb during lockdown; (2) vehicle emissions accounted for 53 % of nighttime sources, with the heterogeneous conversion of NO2 on ground surfaces more important than aerosol; and (3) the dominant daytime source shifted from the homogenous reaction between NO and OH (51 %) to nitrate photolysis (53 %) during lockdown.
Dong Zhang, Xiao Li, Minghao Yuan, Yifei Xu, Qixiang Xu, Fangcheng Su, Shenbo Wang, and Ruiqin Zhang
Atmos. Chem. Phys., 24, 8549–8567, https://doi.org/10.5194/acp-24-8549-2024, https://doi.org/10.5194/acp-24-8549-2024, 2024
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The increasing concentration of O3 precursors and unfavorable meteorological conditions are key factors in the formation of O3 pollution in Zhengzhou. Vehicular exhausts (28 %), solvent usage (27 %), and industrial production (22 %) are identified as the main sources of NMVOCs. Moreover, O3 formation in Zhengzhou is found to be in an anthropogenic volatile organic compound (AVOC)-limited regime. Thus, to reduce O3 formation, a minimum AVOCs / NOx reduction ratio ≥ 3 : 1 is recommended.
Yuening Li, Faqiang Zhan, Chubashini Shunthirasingham, Ying Duan Lei, Jenny Oh, Amina Ben Chaaben, Zhe Lu, Kelsey Lee, Frank A. P. C. Gobas, Hayley Hung, and Frank Wania
EGUsphere, https://doi.org/10.5194/egusphere-2024-1883, https://doi.org/10.5194/egusphere-2024-1883, 2024
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Organophosphate esters are important man-made trace contaminants. Measuring them in the atmospheric gas phase, particles, precipitation and surface water from Canada, we explore seasonal concentration variability, gas/particle partitioning, precipitation scavenging, and air-water equilibrium. Whereas higher concentrations in summer and efficient precipitation scavenging conform with expectations, the lack of a relationship between compound volatility and gas-particle partitioning is puzzling.
Xiansheng Liu, Xun Zhang, Marvin Dufresne, Tao Wang, Lijie Wu, Rosa Lara, Roger Seco , Marta Monge, Ana Maria Yáñez-Serrano, Marie Gohy, Paul Petit, Audrey Chevalier, Marie-Pierre Vagnot, Yann Fortier, Alexia Baudic, Véronique Ghersi, Grégory Gille, Ludovic Lanzi, Valérie Gros, Leïla Simon, Heidi Hellen, Stefan Reimann, Zoé Le Bras, Michelle Jessy Müller, David Beddows, Siqi Hou, Zongbo Shi, Roy M. Harrison, William Bloss, James Dernie, Stéphane Sauvage, Philip K. Hopke, Xiaoli Duan, Taicheng An, Alastair Lewis, Jim Hopkins, Eleni Liakakou, Nikolaos Mihalopoulos, Xiaohu Zhang, Andrés Alastuey, Xavier Querol, and Thérèse Salameh
EGUsphere, https://doi.org/10.5194/egusphere-2024-2309, https://doi.org/10.5194/egusphere-2024-2309, 2024
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This study examines BTEX (benzene, toluene, ethylbenzene, xylenes) pollution in urban areas across 7 European countries. Analyzing data from 22 monitoring sites, we found traffic and industrial activities significantly impact BTEX levels, with peaks during rush hours. Despite improvements, the risk from BTEX exposure remains moderate, especially in high-traffic and industrial zones. It highlights the need for targeted air quality management to protect public health and improve urban air quality.
Delaney B. Kilgour, Christopher M. Jernigan, Olga Garmash, Sneha Aggarwal, Claudia Mohr, Matt E. Salter, Joel A. Thornton, Jian Wang, Paul Zieger, and Timothy H. Bertram
EGUsphere, https://doi.org/10.5194/egusphere-2024-1975, https://doi.org/10.5194/egusphere-2024-1975, 2024
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We report simultaneous measurements of dimethyl sulfide (DMS) and hydroperoxymethyl thioformate (HPMTF) in the Eastern North Atlantic. We use an observationally constrained box model to show cloud loss is the dominant sink of HPMTF in this region over six weeks, resulting in large reductions in DMS-derived products that contribute to aerosol formation and growth. Our findings indicate that fast cloud processing of HPMTF must be included in global models to accurately capture the sulfur cycle.
Arianna Peron, Martin Graus, Marcus Striednig, Christian Lamprecht, Georg Wohlfahrt, and Thomas Karl
Atmos. Chem. Phys., 24, 7063–7083, https://doi.org/10.5194/acp-24-7063-2024, https://doi.org/10.5194/acp-24-7063-2024, 2024
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The anthropogenic fraction of non-methane volatile organic compound (NMVOC) emissions associated with biogenic sources (e.g., terpenes) is investigated based on eddy covariance observations. The anthropogenic fraction of terpene emissions is strongly dependent on season. When analyzing volatile chemical product (VCP) emissions in urban environments, we caution that observations from short-term campaigns might over-/underestimate their significance depending on local and seasonal circumstances.
Sihang Wang, Bin Yuan, Xianjun He, Ru Cui, Xin Song, Yubin Chen, Caihong Wu, Chaomin Wang, Yibo Huangfu, Xiao-Bing Li, Boguang Wang, and Min Shao
Atmos. Chem. Phys., 24, 7101–7121, https://doi.org/10.5194/acp-24-7101-2024, https://doi.org/10.5194/acp-24-7101-2024, 2024
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Emissions of reactive organic gases from industrial volatile chemical product sources are measured. There are large differences among these industrial sources. We show that oxygenated species account for significant contributions to reactive organic gas emissions, especially for industrial sources utilizing water-borne chemicals.
Qing Yang, Xiao-Bing Li, Bin Yuan, Xiaoxiao Zhang, Yibo Huangfu, Lei Yang, Xianjun He, Jipeng Qi, and Min Shao
Atmos. Chem. Phys., 24, 6865–6882, https://doi.org/10.5194/acp-24-6865-2024, https://doi.org/10.5194/acp-24-6865-2024, 2024
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Online vertical gradient measurements of formic and isocyanic acids were made based on a 320 m tower in a megacity. Vertical variations and sources of the two acids were analyzed in this study. We find that formic and isocyanic acids exhibited positive vertical gradients and were mainly contributed by photochemical formations. The formation of formic and isocyanic acids was also significantly enhanced in urban regions aloft.
Junwei Song, Harald Saathoff, Feng Jiang, Linyu Gao, Hengheng Zhang, and Thomas Leisner
Atmos. Chem. Phys., 24, 6699–6717, https://doi.org/10.5194/acp-24-6699-2024, https://doi.org/10.5194/acp-24-6699-2024, 2024
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This study presents concurrent online measurements of organic gas and particles (VOCs and OA) at a forested site in summer. Both VOCs and OA were largely contributed by oxygenated organic compounds. Semi-volatile oxygenated OA and organic nitrate formed from monoterpenes and sesquiterpenes contributed significantly to nighttime particle growth. The results help us to understand the causes of nighttime particle growth regularly observed in summer in central European rural forested environments.
Jiemeng Bao, Xin Zhang, Zhenhai Wu, Li Zhou, Jun Qian, Qinwen Tan, Fumo Yang, Junhui Chen, Yunfeng Li, Hefan Liu, Liqun Deng, and Hong Li
EGUsphere, https://doi.org/10.5194/egusphere-2024-1204, https://doi.org/10.5194/egusphere-2024-1204, 2024
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Our research in the Chengdu Plain Urban Agglomeration (CPUA), China, reveals significant correlations between carbonyl compounds and ozone pollution, particularly in Chengdu. Formaldehyde, acetone, and acetaldehyde are key contributors to ozone formation. Urgent collaborative actions among cities are needed to mitigate carbonyl-related ozone pollution, stressing the control of NOx and VOCs emissions. Our study offers crucial insights for crafting effective regional pollution control strategies.
Xin Yang, Kimberly Strong, Alison S. Criscitiello, Marta Santos-Garcia, Kristof Bognar, Xiaoyi Zhao, Pierre Fogal, Kaley A. Walker, Sara M. Morris, and Peter Effertz
Atmos. Chem. Phys., 24, 5863–5886, https://doi.org/10.5194/acp-24-5863-2024, https://doi.org/10.5194/acp-24-5863-2024, 2024
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This study uses snow samples collected from a Canadian high Arctic site, Eureka, to demonstrate that surface snow in early spring is a net sink of atmospheric bromine and nitrogen. Surface snow bromide and nitrate are significantly correlated, indicating the oxidation of reactive nitrogen is accelerated by reactive bromine. In addition, we show evidence that snow photochemical release of reactive bromine is very weak, and its emission flux is much smaller than the deposition flux of bromide.
Rebecca M. Garland, Katye E. Altieri, Laura Dawidowski, Laura Gallardo, Aderiana Mbandi, Nestor Y. Rojas, and N'datchoh E. Touré
Atmos. Chem. Phys., 24, 5757–5764, https://doi.org/10.5194/acp-24-5757-2024, https://doi.org/10.5194/acp-24-5757-2024, 2024
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This opinion piece focuses on two geographical areas in the Global South where the authors are based that are underrepresented in atmospheric science. This opinion provides context on common challenges and constraints, with suggestions on how the community can address these. The focus is on the strengths of atmospheric science research in these regions. It is these strengths, we believe, that highlight the critical role of Global South researchers in the future of atmospheric science research.
Heidi Hellén, Rostislav Kouznetsov, Kaisa Kraft, Jukka Seppälä, Mika Vestenius, Jukka-Pekka Jalkanen, Lauri Laakso, and Hannele Hakola
Atmos. Chem. Phys., 24, 4717–4731, https://doi.org/10.5194/acp-24-4717-2024, https://doi.org/10.5194/acp-24-4717-2024, 2024
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Mixing ratios of C2-C5 NMHCs and methanethiol were measured on an island in the Baltic Sea using an in situ gas chromatograph. Shipping emissions were found to be an important source of ethene, ethyne, propene, and benzene. High summertime mixing ratios of methanethiol and dependence of mixing ratios on seawater temperature and height indicated the biogenic origin to possibly be phytoplankton or macroalgae. These emissions may have a strong impact on SO2 production and new particle formation.
Matthew M. Coggon, Chelsea E. Stockwell, Lu Xu, Jeff Peischl, Jessica B. Gilman, Aaron Lamplugh, Henry J. Bowman, Kenneth Aikin, Colin Harkins, Qindan Zhu, Rebecca H. Schwantes, Jian He, Meng Li, Karl Seltzer, Brian McDonald, and Carsten Warneke
Atmos. Chem. Phys., 24, 4289–4304, https://doi.org/10.5194/acp-24-4289-2024, https://doi.org/10.5194/acp-24-4289-2024, 2024
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Residential and commercial cooking emits pollutants that degrade air quality. Here, ambient observations show that cooking is an important contributor to anthropogenic volatile organic compounds (VOCs) emitted in Las Vegas, NV. These emissions are not fully presented in air quality models, and more work may be needed to quantify emissions from important sources, such as commercial restaurants.
Fabien Paulot, Gabrielle Pétron, Andrew M. Crotwell, and Matteo B. Bertagni
Atmos. Chem. Phys., 24, 4217–4229, https://doi.org/10.5194/acp-24-4217-2024, https://doi.org/10.5194/acp-24-4217-2024, 2024
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New data from the National Oceanic and Atmospheric Administration show that hydrogen (H2) concentrations increased from 2010 to 2019, which is consistent with the simulated increase in H2 photochemical production (mainly from methane). But this cannot be reconciled with the expected decrease (increase) in H2 anthropogenic emissions (soil deposition) in the same period. This shows gaps in our knowledge of the H2 biogeochemical cycle that must be resolved to quantify the impact of higher H2 usage.
Wenjie Wang, Bin Yuan, Hang Su, Yafang Cheng, Jipeng Qi, Sihang Wang, Wei Song, Xinming Wang, Chaoyang Xue, Chaoqun Ma, Fengxia Bao, Hongli Wang, Shengrong Lou, and Min Shao
Atmos. Chem. Phys., 24, 4017–4027, https://doi.org/10.5194/acp-24-4017-2024, https://doi.org/10.5194/acp-24-4017-2024, 2024
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This study investigates the important role of unmeasured volatile organic compounds (VOCs) in ozone formation. Based on results in a megacity of China, we show that unmeasured VOCs can contribute significantly to ozone fomation and also influence the determination of ozone control strategy. Our results show that these unmeasured VOCs are mainly from human sources.
Shigeyuki Ishidoya, Satoshi Sugawara, and Atsushi Okazaki
EGUsphere, https://doi.org/10.5194/egusphere-2024-654, https://doi.org/10.5194/egusphere-2024-654, 2024
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Diurnal, seasonal, and interannual variations of the present-day stable isotopic ratio of atmospheric O2, in other words slight variations in the Dole-Morita effect, have been detected firstly. A box model that incorporated biological and water processes associated with the Dole-Morita effect reproduced the general characteristics of the observational results. Based on the findings, we proposed some applications to evaluate oxygen, carbon, and water cycles.
Romain Salignat, Matti Rissanen, Siddharth Iyer, Jean-Luc Baray, Pierre Tulet, Jean-Marc Metzger, Jérôme Brioude, Karine Sellegri, and Clémence Rose
Atmos. Chem. Phys., 24, 3785–3812, https://doi.org/10.5194/acp-24-3785-2024, https://doi.org/10.5194/acp-24-3785-2024, 2024
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Using mass spectrometry data collected at the Maïdo Observatory (2160 m a.s.l., Réunion), we provide the first detailed analysis of molecular cluster chemical composition specifically in the marine free troposphere. The abundance of the identified species is related both to in situ meteorological parameters and air mass history, which also provide insight into their origin. Our work makes an important contribution to documenting the chemistry and physics of the marine free troposphere.
Delaney B. Kilgour, Gordon A. Novak, Megan S. Claflin, Brian M. Lerner, and Timothy H. Bertram
Atmos. Chem. Phys., 24, 3729–3742, https://doi.org/10.5194/acp-24-3729-2024, https://doi.org/10.5194/acp-24-3729-2024, 2024
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Laboratory experiments with seawater mimics suggest ozone deposition to the surface ocean can be a source of reactive carbon to the marine atmosphere. We conduct both field and laboratory measurements to assess abiotic VOC composition and yields from ozonolysis of real surface seawater. We show that C5–C11 aldehydes contribute to the observed VOC emission flux. We estimate that VOCs generated by the ozonolysis of surface seawater are competitive with biological VOC production and emission.
Xiangdong Zheng, Wen Yang, Yuting Sun, Chunmei Geng, Yingying Liu, and Xiaobin Xu
Atmos. Chem. Phys., 24, 3759–3768, https://doi.org/10.5194/acp-24-3759-2024, https://doi.org/10.5194/acp-24-3759-2024, 2024
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Chen et al. (2022) attributed the nocturnal ozone enhancement (NOE) during the night of 31 July 2021 in the North China Plain (NCP) to "the direct stratospheric intrusion to reach the surface". We analyzed in situ data from the NCP. Our results do not suggest that there was a significant impact from the stratosphere on surface ozone during the NOE. We argue that the NOE was not caused by stratospheric intrusion but originated from fresh photochemical production in the lower troposphere.
Junling Li, Chaofan Lian, Mingyuan Liu, Hao Zhang, Yongxin Yan, Yufei Song, Chun Chen, Haijie Zhang, Yanqin Ren, Yucong Guo, Weigang Wang, Yisheng Xu, Hong Li, Jian Gao, and Maofa Ge
EGUsphere, https://doi.org/10.5194/egusphere-2024-367, https://doi.org/10.5194/egusphere-2024-367, 2024
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In recent years, the concentration of atmospheric particulate matter in China decreased significantly, but the ozone concentration showed a fluctuating upward trend, the atmospheric oxidation capacity increased significantly, especially in the warm season. Given the contribution of HONO to atmospheric oxidation capacity, its sources should be studied in more detail.
James M. Roberts, Siyuan Wang, Patrick R. Veres, J. Andrew Neuman, Michael A. Robinson, Ilann Bourgeois, Jeff Peischl, Thomas B. Ryerson, Chelsea R. Thompson, Hannah M. Allen, John D. Crounse, Paul O. Wennberg, Samuel R. Hall, Kirk Ullmann, Simone Meinardi, Isobel J. Simpson, and Donald Blake
Atmos. Chem. Phys., 24, 3421–3443, https://doi.org/10.5194/acp-24-3421-2024, https://doi.org/10.5194/acp-24-3421-2024, 2024
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We measured cyanogen bromide (BrCN) in the troposphere for the first time. BrCN is a product of the same active bromine chemistry that destroys ozone and removes mercury in polar surface environments and is a previously unrecognized sink for active Br compounds. BrCN has an apparent lifetime against heterogeneous loss in the range 1–10 d, so it serves as a cumulative marker of Br-radical chemistry. Accounting for BrCN chemistry is an important part of understanding polar Br cycling.
Kai Qin, Wei Hu, Qin He, Fan Lu, and Jason Blake Cohen
Atmos. Chem. Phys., 24, 3009–3028, https://doi.org/10.5194/acp-24-3009-2024, https://doi.org/10.5194/acp-24-3009-2024, 2024
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We compute CH4 emissions and uncertainty on a mine-by-mine basis, including underground, overground, and abandoned mines. Mine-by-mine gas and flux data and 30 min observations from a flux tower located next to a mine shaft are integrated. The observed variability and bias correction are propagated over the emissions dataset, demonstrating that daily observations may not cover the range of variability. Comparisons show both an emissions magnitude and spatial mismatch with current inventories.
Yao Yan Huang and D. James Donaldson
Atmos. Chem. Phys., 24, 2387–2398, https://doi.org/10.5194/acp-24-2387-2024, https://doi.org/10.5194/acp-24-2387-2024, 2024
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Ground-level ozone interacts at the lake–land boundary; this is important to our understanding and modelling of atmospheric chemistry and air pollution in the lower atmosphere. We show that a steep ozone gradient occurs year-round moving inland up to 1 km from the lake and that this gradient is influenced by seasonal factors on the local land environment, where more rural areas are more greatly affected seasonally.
Cited articles
Apple: COVID-19 Mobility Trends Report, 2022,
https://covid19.apple.com/mobility, last access: 13 April 2022.
Bauwens, M., Compernolle, S., Stavrakou, T., Müller, J.-F., van Gent,
J., Eskers, H., Levelt, P. F., van der A, R., Veefkind, J. P., Vlietinck,
J., Yu, H., and Zehner, C.: Impact of Coronavirus outbreak on NO2 pollution
assessed using TROPOMI and OMI observations, Geophys. Res.
Lett., 47, e2020GL087978, https://doi.org/10.1029/2020GL087978, 2020.
Boersma, K. F., Eskes, H. J., Richter, A., De Smedt, I., Lorente, A., Beirle, S., van Geffen, J. H. G. M., Zara, M., Peters, E., Van Roozendael, M., Wagner, T., Maasakkers, J. D., van der A, R. J., Nightingale, J., De Rudder, A., Irie, H., Pinardi, G., Lambert, J.-C., and Compernolle, S. C.: Improving algorithms and uncertainty estimates for satellite NO2 retrievals: results from the quality assurance for the essential climate variables (QA4ECV) project, Atmos. Meas. Tech., 11, 6651–6678, https://doi.org/10.5194/amt-11-6651-2018, 2018.
Buchholz, R. R., Emmons, L. K., Tilmes, S., and The CESM2 Development Team:
CESM2.1/CAM-chem Instantaneous Output for Boundary Conditions,
Lat:
−5 to 45, Lon: 75 to 145, April 2016–June 2016, UCAR/NCAR – Atmospheric Chemistry Observations and Modeling Laboratory [data set],
https://doi.org/10.5065/NMP7-EP60, 2019.
Chang, K.-L., Schultz, M. G., Lan, X. McClure-Begley, A., Petropavlovskikh,
I., Xu, X., and Ziemke, J. R.: Trend detection of atmospheric time series:
Incorporating appropriate uncertainty estimates and handling extreme events,
Elem. Sci. Anthropocene, 9, 00035,
https://doi.org/10.1525/elementa.2021.00035, 2021.
Colombi, N. K., Jacob, D. J., Yang, L. H., Zhai, S., Shah, V., Grange, S. K., Yantosca, R. M., Kim, S., and Liao, H.: Why is ozone in South Korea and the Seoul metropolitan area so high and increasing?, Atmos. Chem. Phys., 23, 4031–4044, https://doi.org/10.5194/acp-23-4031-2023, 2023.
Cooper, O., Parrish, D., Stohl, A., Trainer, M., Nédélec, P.,
Thouret, V., Cammas, J. P., Oltmans, S. J., Johnson, B. J., Tarasick, D.,
Leblanc, T., McDermid, I. S., Jaffe, D., Gao, R., Stith, J., Ryerson, T.,
Aikin, K., Campos, T., Weinheimer, A., and Avery, M. A.: Increasing
springtime ozone mixing ratios in the free troposphere over western North
America, Nature, 463, 344–348, https://doi.org/10.1038/nature08708, 2010.
Crawford, J. H., Ahn, J.-Y., Al-Saadi, J., Chang, L., Emmons, L. K., Kim,
J., Lee, G., Park, J.-H., Park, R. J., Woo, J. H., Song, C.-K., Hong, J.-H.,
Hong, Y.-D., Lefer, B. L., Lee, M., Lee, T., Kim, S., Min, K.-E., Yum, S.
S., Shin, H. J., Kim, Y.-W., Choi, J.-S., Park, J.-S., Szykman, J. J., Long,
R. W., Jordan, C. E., Simpson, I. J., Fried, A., Dibb, J. E., Cho, S., and
Kim, Y. P.: The Korea–United States Air Quality (KORUS-AQ) field study,
Elem. Sci. Anthropocene, 9, 1–27,
https://doi.org/10.1525/elementa.2020.00163, 2021.
Crippa, M., Guizzardi, D., Butler, T., Keating, T., Wu, R., Kaminski, J., Kuenen, J., Kurokawa, J., Chatani, S., Morikawa, T., Pouliot, G., Racine, J., Moran, M. D., Klimont, Z., Manseau, P. M., Mashayekhi, R., Henderson, B. H., Smith, S. J., Suchyta, H., Muntean, M., Solazzo, E., Banja, M., Schaaf, E., Pagani, F., Woo, J.-H., Kim, J., Monforti-Ferrario, F., Pisoni, E., Zhang, J., Niemi, D., Sassi, M., Ansari, T., and Foley, K.: The HTAP_v3 emission mosaic: merging regional and global monthly emissions (2000–2018) to support air quality modelling and policies, Earth Syst. Sci. Data, 15, 2667–2694, https://doi.org/10.5194/essd-15-2667-2023, 2023.
Emmons, L. K., Schwantes, R. H., Orlando, J. J., Tyndall, G., Kinnison, D.,
Lamarque, J.-F., Marsh, D., Mills, M. J., Tilmes, S., Bardeen, Ch.,
Buchholz, R. R., Conley, A., Gettelman, A., Garcia, R., Simpson, I., Blake,
D. R., Meinardi, S., and Pétron, G.: The Chemistry Mechanism in the
Community Earth System Model version 2 (CESM2), J. Adv. Model. Earth Sy.,
12, e2019MS001882, https://doi.org/10.1029/2019MS001882, 2020.
Eskes, H., van Geffen J., Boersma, F., Eichmann, K.-U., Apituley, A.,
Pedergnana, M., Sneep, M., Veefkind, J. P., and Loyola, D.: Sentinel-5
precursor/TROPOMI level 2 product user manual nitrogen dioxide, Royal
Netherlands Meteorological Institute, # S5P-KNMI-L2-0021-MA, issue 3.0.0,
27, https://sentinel.esa.int/documents/247904/2474726/Sentinel-5P-Level-2-Product-User-Manual-Nitrogen-Dioxide.pdf (last access: 11 November 2022), 2019.
Fiore, A. M., Jacob, D. J., Bey. I., Yantosca, R. M., Field, B. D., Fusco,
A. C., and Wilkinson, J. G.: Background ozone over the United States in
summer: Origin, trend, and contribution to pollution episodes, J. Geophys.
Res., 107, 4275, https://doi.org/10.1029/2001JD000982, 2002.
Gaudel, A., Cooper, O. R., Ancellet, G., Barret, B., Boynard, A., Burrows,
J. P., Clerbaux, C., Coheur, P. F., Cuesta, J., Cuevas, E., Doniki, S.,
Dufour, G., Ebojie, F., Foret, G., Garcia, O., Granados-Muñoz, M. J.,
Hannigan, J. W., Hase, F., Hassler, B., Huang, G., Hurtmans, D., Jaffe, D.,
Jones, N., Kalabokas, P., Kerridge, B., Kulawik, S., Latter, B., Leblanc,
T., Le Flochmoën, E., Lin, W., Liu, J., Liu, X., Mahieu, E.,
McClure-Begley, A., Neu, J. L., Osman, M., Palm, M., Petetin, H.,
Petropavlovskikh, I., Querel, R., Rahpoe, N., Rozanov, A., Schultz, M. G.,
Schwab, J., Siddans, R., Smale, D., Steinbacher, M., Tanimoto, H., Tarasick,
D. W., Thouret, V., Thompson, A. M., Trickl, T., Weatherhead, E., Wespes,
C., Worden, H. M., Vigouroux, C., Xu, X., Zeng, G., and Ziemke, J.:
Tropospheric Ozone Assessment Report: Present-day distribution and trends of
tropospheric ozone relevant to climate and global atmospheric chemistry
model evaluation, Elem. Sci. Anthropocene, 6, 39,
https://doi.org/10.1525/elementa.291, 2018.
Gaudel, A., Cooper, O. R., Chang, K.-L., Bourgeois, I., Ziemke, J. R.,
Strode, S. A., Oman, L. D., Sellitto, P., Nédélec P., Blot, R.,
Thouret, V., and Granier, C.: Aircraft observations since the 1990s reveal
increases of tropospheric ozone at multiple locations across the Northern
Hemisphere, Sci. Adv., 6, eaba8272, https://doi.org/10.1126/sciadv.aba8272, 2020.
Ghim, Y. S.: Trends and factors of ozone concentration variations in Korea,
J. Korean Soc. Atmos. Environ, 16, 607–623,
https://pubs.kist.re.kr/handle/201004/10289, 2000.
Google: COVID-19 Community Mobilty Report, 2022,
https://www.google.com/covid19/mobility/, last access: 15 November 2022.
Grell, G. A., Peckham, S. E., Schmitz, R., McKeen, S. A., Frost, G.,
Skamarock, W. C., and Eder, B.: Fully coupled “online” chemistry within
WRF model, Atmos. Environ., 39, 6957–6975,
https://doi.org/10.1016/j.atmosenv.2005.04.027, 2005.
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.
Jacob, D. J., Logan, J. A., and Murti, P. P.: Effect of rising Asian
emissions on surface ozone in the United States, Geophys. Res. Lett., 26,
2175–2178, https://doi.org/10.1029/1999gl900450, 1999.
Jaffe, D., Anderson, T., Covert, D., Kotchenruther, R., Trost, B.,
Danielson, J., Simpson, W., Berntsen, T., Karlsdottir, S., Blake, D.,
Harris, J., Carmichael, G., and Uno, I.: Transport of Asian Air Pollution to
North America, Geophys. Res. Lett., 26, 711–714, https://doi.org/10.1029/1999GL900100,
1999.
Jaffe, D., Price, H., Parrish, D., Glodstein, A., and Harris, J.: Increasing
background ozone during spring on the west cost of North America, Geophys.
Res. Lett., 30, 1613, https://doi.org/10.1029/2003GL017024, 2003.
Jaffe, D. A., Cooper, O. R., Fiore, A. M., Henderson, B. H., Tonnesen, G.
S., Russell, A. G., Henze, D. K., Langford, A. O., Lin, M., and Moore, T.:
Scientific assessment of background ozone over the U.S.: Implications for
air quality management, Elem. Sci. Anthropocene, 6, 56,
https://doi.org/10.1525/elementa.309, 2018.
Jeong, Y., Kim, S.-W., Kim, J., Shin, D., Kim, J., Park, J.-H., and An, S.-I.: Influence of ENSO on Tropospheric Ozone Variability in East Asia, J. Geophys. Res., 128, e2023JD038604, https://doi.org/10.1029/2023JD038604, 2023.
Kim, H., Gil, J., Lee, M., Jung, J., Whitehill, A., Szykman, J., Lee, G.,
Kim, D.-S., Cho, S., Ahn, J.-Y., Hong, J., and Park, M.-S.: Factors
controlling surface ozone in the Seoul Metropolitan Area during the KORUS-AQ
Campaign, Elem. Sci. Anthropocene, 8, 46,
https://doi.org/10.1525/elementa.444, 2020.
Kim, J., Ghim, Y. S., Han, J.-S., Park, S.-M., Shina, H.-J., Lee, S.-B.,
Kim, J., Lee, G.: Long-term trend analysis of Korean air quality and its
implication to current air quality policy on ozone and PM10, J. Korean Soc.
Atmos. Environ., 34, 1–15, https://doi.org/10.5572/KOSAE.2018.34.1.001,
2018.
Kim, K.-M., Kim, S.-W., Seo, S., Blake, D. R., Cho, S., Crawford, J. H., Emmons, L., Fried, A., Herman, J. R., Hong, J., Jung, J., Pfister, G., Weinheimer, A. J., Woo, J.-H., and Zhang, Q.: Sensitivity of the WRF-Chem v4.4 ozone, formaldehyde, and precursor simulations to multiple bottom-up emission inventories over East Asia during the KORUS-AQ 2016 field campaign, Geosci. Model Dev. Discuss. [preprint], https://doi.org/10.5194/gmd-2023-132, in review, 2023.
Kim, Y. P. and Lee G. W.: Trend of Air Quality in Seoul: Policy and
Science, Aerosol Air Qual. Res., 18, 2141–2156,
https://doi.org/10.4209/aaqr.2018.03.0081, 2018.
Koo, J. H., Kim, J., Lee, Y. G., Park, S. S., Lee, S., Chong, H., Cho, Y.,
Kim, J., Choi, K., and Lee, T.: The implication of the air quality pattern
in South Korea after the COVID-19 outbreak, Sci. Rep., 10, 22462,
https://doi.org/10.1038/s41598-020-80429-4, 2020.
Koninklijk Nederlands Meteorologisch Instituut (KNMI): Sentinel-5P TROPOMI Tropospheric NO2 1-Orbit L2 5.5 km × 3.5 km, Greenbelt, MD, USA, Goddard Earth Sciences Data and Information Services Center (GES DISC) [data set], https://doi.org/10.5270/S5P-9bnp8q8, 2021.
Korea Expressway Corporation: Daily traffic counts collected by highway tollgates, http://data.ex.co.kr/portal/fdwn/view?type=TCS&num=34&requestfrom=dataset (last access: 13 April 2023), 2023.
Lamsal, L. N., Krotkov, N. A., Vasilkov, A., Marchenko, S., Qin, W., Yang, E.-S., Fasnacht, Z., Joiner, J., Choi, S., Haffner, D., Swartz, W. H., Fisher, B., and Bucsela, E.: Ozone Monitoring Instrument (OMI) Aura nitrogen dioxide standard product version 4.0 with improved surface and cloud treatments, Atmos. Meas. Tech., 14, 455–479, https://doi.org/10.5194/amt-14-455-2021, 2021.
Lamsal, L. N., Krotkov, N. A., Marchenko, S. V., Joiner, J.,
Oman, L., Vasilkov, A., Fisher, B., Qin, W., Yang, E.-S.,
Fasnacht, Z., Choi, S., Leonard, P., and Haffner, D.:
TROPOMI/S5P NO2 Tropospheric, Stratospheric and Total Columns MINDS 1-Orbit
L2 Swath 5.5 km × 3.5 km, NASA Goddard Space Flight Center, Goddard Earth
Sciences Data and Information Services Center (GES DISC) [data set], https://doi.org/10.5067/MEASURES/MINDS/DATA203, 2022.
Langford, A. O., Alvarez ?, R. J., Brioude, J., Fine, R., Gustin, M. S.,
Lin, M. Y., Marchbanks, R. D., Pierce, R. B., Sandberg, S. P., Senff, C. J.,
Weickmann, A. M., and Williams, E. J.: Entrainment of stratospheric air and
Asian pollution by the convective boundary layer in the southwestern U.S.,
J. Geophys. Res., 122, 1312–1337, doi.org/10.1002/2016JD025987, 2017.
Lee, G. W., Park, J. H., Kim D. G., Koh, M. S., Lee, M., Han, J. S., and
Kim, J. C.: Current status and future directions of tropospheric
photochemical ozone studies in Korea, J. Korean Soc. Atmos. Environ., 36,
419–441, https://https://doi.org/10.5572/KOSAE.2020.36.4.419, 2020.
Lee, H.-M. and Park R. J.: Factors determining the seasonal variation of
ozone air quality in South Korea: Regional Background versus Domestic
Emission Contributions, Environ. Pollut., 308, 119645,
https://doi.org/10.1016/j.envpo.2022.119645, 2022.
Li, K., Jacob, D. J., Liao, H., and Bates, K. H.: Anthropogenic drivers of
2013–2017 trends in summer surface ozone in China, P. Natl. Acad. Sci. USA,
116, 422–427, https://doi.org/10.1073/pnas.1812168116, 2019.
Liang, Q., Jaeglé, L., Hudman, R. C., Turquety, S., Jacob, D. J., Avery,
M. A., Browell, E. V., Sachse, G. W., Blake, D. R., Brune, W., Ren, X.,
Cohen, R. C., Dibb, J. E., Fried, A., Fuelberg, H., Porter, M., Heikes, B.
G., Huey, G., Singh, H. B., and Wennberg, P. O.: Summertime influence of
Asian pollution in the free troposphere over North America, J. Geophys.
Res., 112, D12D11, https://https://doi.org/10.1029/2006JD007919, 2007.
Lin, M., Fiore, A. M., Horowitz, L, W., Cooper, O. R., Naik, V., Holloway,
J., Johnson, B. J., Middlebrook, A. M., Oltmans, S. J., Pollack, I. B.,
Ryerson, T. B., Warner, J. X., Wiedinmyer, C., Wilson, J., and Wyman, B.:
Transport of Asian ozone pollution into surface iar over the western United
States in spring, J. Geophys. Res., 117, D00V07,
https://https://doi.org/10.1029/2011JD016961, 2012.
Lin, M., Fiore, A. M., Horowitz, L. W., Langford, A. O., Oltmans, S. J.,
Tarasick, D., and Rieder, H. E.: Climate variability modulates western US
ozone air quality in spring via deep stratospheric intrusions, Nat.
Commun., 6, 7105, https://doi.org/10.1038/ncomms8105, 2015.
NASA: KORUS-AQ Aircraft Merge Data, NASA [data set], https://doi.org/10.5067/Suborbital/KORUSAQ/DATA01, 2019.
National Center for Atmospheric Research (NCAR): Community Earth System Model 2, GitHub [code] https://github.com/ESCOMP/CESM/tree/release-cesm2.2.0 (last access: 26 February 2021), 2020.
National Center for Atmospheric Research (NCAR): Weather Research and Forecasting Model, GitHub [code], https://github.com/wrf-model/WRF/releases/tag/v4.4 (last access: 18 May 2022), 2022.
National Institute of Environmental Research (NIER): Airkorea surface observation networks, NIER [data set], https://www.airkorea.or.kr/web/last_amb_hour_data?pMENU_NO=123 (last access 28 July 2022), 2022.
National Research Council: Rethinking the ozone problem in urban and regional air pollution, Washington, DC, The National Academic Press, https://doi.org/10.17226/1889, 1991.
Monks, P. S., Archibald, A. T., Colette, A., Cooper, O., Coyle, M., Derwent, R., Fowler, D., Granier, C., Law, K. S., Mills, G. E., Stevenson, D. S., Tarasova, O., Thouret, V., von Schneidemesser, E., Sommariva, R., Wild, O., and Williams, M. L.: Tropospheric ozone and its precursors from the urban to the global scale from air quality to short-lived climate forcer, Atmos. Chem. Phys., 15, 8889–8973, https://doi.org/10.5194/acp-15-8889-2015, 2015.
Oh, I.-B., Kim, Y.-K., Hwang, M-K., Kim, C.-H., Kim, S., and Song, S.-K.:
Elevated ozone layers over the Seoul Metropolitan Region in Korea: Evidence
for long-range ozone transport from Eastern China and its contribution to
surface concentrations, J. Appl. Meteorol. Clim., 49,
203–220, https://doi.org/10.1175/2009JAMC2213.1, 2010.
Park, R. J., Oak, Y. J., Emmons, L. K., Kim, C.-H., Pfister, G. G.,
Carmichael, G. R., Saide, P. E., Cho, S.-Y., Kim, S., Woo, J.-H., Crawford,
J. H., Gaubert, B., Lee, H.-J., Park, S.-Y., Jo, Y.-J., Gao, M., Tang, B.,
Stanier, C. O., Shin, S. S., Park, H. Y., Bae, C., and Kim, E.: Multi-model
intercomparisons of air quality simulations for the KORUS-AQ campaign,
Elementa, 9, 00139, https://doi.org/10.1525/elementa.2021.00139, 2021.
Parrish, D. D., Derwent, R. G.,Steinbrecht, W., Stübi, R., VanMalderen,
R., Steinbacher, M., Trickl, T., Ries, L., and Xu, X.: Zonal similarity of
long-term changes and seasonal cycles of baseline ozone at northern
midlatitudes, J. Geophys. Res, 125, e2019JD031908,
https://doi.org/10.1029/2019JD031908, 2020.
Seo, S., Kim, S.-W., Kim, K.-M., Lamsal, L. N., and Jin, H.: Reductions in
NO2 concentrations in Seoul, South Korea detected from space and
ground-based monitors prior to and during the COVID-19 pandemic, Environ.
Res. Commun., 3, 051005, https://doi.org/10.1088/2515-7620/abed92, 2021.
Shi, X. and Brasseur, G. P.: The response in air quality to the reduction
of Chinese economic activities during the COVID-19 outbreak. Geophys. Res.
Lett., 47, e2020GL088070, https://doi.org/10.1029/2020GL088070, 2020.
Steinbrecht, W., Kubistin, D., Plass-Dülmer, C., Davies, J., Tarasick,
D. W., von der Gathen, P., Deckelmann, H., Jepsen, N., Kivi, R., Lyall, N.,
Palm, M., Notholt, J., Kois, B., Oelsner, P., Allaart, M., Piters, A., Gill,
M., van Malderen, R., Delcloo, A. W., Sussmann, R., Mahieu, E., Servais, C.,
Romanens, G., Stübi, R., Ancellet, G., Godin-Beekmann, S., Yamanouchi,
S., Strong, K., Johnson, B., Cullis, P., Petropavlovskikh, P., Hannigan, J.
W., Hernandez, J.-L., Rodriguez, A. D., Nakano, T., Chouza, F., Leblanc, T.,
Torres, C., Garcia, O., Röhling, A. N., Schneider, M., Blumenstock, T.,
Tully, M., Paton-Walsh, C., Jones, N., Querel, R., Strahan, S., Stauffer, R.
M., Thompson, A. M., Inness, A., Engelen, R., Chang, K. L., and Cooper, O.
R.: COVID-19 crisis reduces free tropospheric ozone across the Northern
Hemisphere, Geophys. Res. Lett., 48, e2020GL091987, https://doi.org/10.1029/2020GL091987, 2021.
Veefkind, J. P., Aben, I., McMullan, K., Förster, H., de Vries, J.,
Otter, G., Claas, J., Eskes, H. J., de Haan, J. F., Kleipool, Q., van Weele,
M., Hasekamp, O., Hoogeveen, R., Landgraf, J., Snel, R., Tol, P., Ingmann,
P., Voors, R., Kruizinga, B., Vink, R., Visser, H., and Levelt, P. F.:
TROPOMI on the ESA Sentinel-5 Precursor: A GMES mission for global
observations of the atmospheric composition for climate, air quality and
ozone layer applications, Remote Sens. Environ., 120,
70–83, https://doi.org/10.1016/j.rse.2011.09.027, 2012.
Wang, W., Parrish, D. D., Li, X., Shao, M., Liu, Y., Mo, Z., Lu, S., Hu, M., Fang, X., Wu, Y., Zeng, L., and Zhang, Y.: Exploring the drivers of the increased ozone production in Beijing in summertime during 2005–2016, Atmos. Chem. Phys., 20, 15617–15633, https://doi.org/10.5194/acp-20-15617-2020, 2020.
Wang, W., Parrish, D. D., Wang, S., Bao, F., Ni, R., Li, X., Yang, S., Wang, H., Cheng, Y., and Su, H.: Long-term trend of ozone pollution in China during 2014–2020: distinct seasonal and spatial characteristics and ozone sensitivity, Atmos. Chem. Phys., 22, 8935–8949, https://doi.org/10.5194/acp-22-8935-2022, 2022.
Wasserstein, R. L., Schirm, A. L., and Lazar, N. A.: Moving to a world beyond
“p < 0.05”, Am. Stat., 73, 1–19,
https://doi.org/10.1080/00031305.2019.1583913, 2019.
Yeo, M. J. and Kim Y. P.: Long-term trends of surface ozone in Korea,
J. Clean. Prod., 294, 125352,
https://doi.org/10.1016/j.jclepro.2020.125352, 2021.
Short summary
Surface ozone is a pollutant regulated for public health. This study derived surface ozone trends over South Korea from 2001 to 2021 and highlighted that South Korea has been a nonattainment area since 2010, based on the US EPA standard. However, the occurrences of high ozone condition decreased in spring during the COVID-19 pandemic, partly due to large reductions of ozone precursor concentrations in China and South Korea.
Surface ozone is a pollutant regulated for public health. This study derived surface ozone...
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