A094
Trend analysis of atmospheric pollutants monitored worldwide
Session ID#: 161846
Session Description:
Long-term monitoring of atmospheric pollutants related to air quality and climate impacts is essential to assessing long-term impacts of air pollution on human and ecosystem health and climate change, evaluating the effectiveness of emissions control strategies, providing data for the evaluation of chemistry transport models, and supporting various research topics (e.g., climate impact on air quality trends, atmospheric chemistry process). Monitoring networks have been established worldwide to measure a large number of atmospheric pollutants, while satellite data have also been made available for some chemical species in the recent decades. Analyses of these long-term data are indispensable to reach the goals listed above. However, accurately identifying the decadal or longer trends in the monitored pollutants ambient concentrations and associated causes is challenging due to the many different factors (e.g., emission changes, varying climate and weather conditions, special events) contributing to the trends, incompletion of the data, and methodology uncertainties, etc. This session focuses on studies analyzing atmospheric pollutants on decadal or longer scales, such as development, evaluation and intercomparison of data processing and trend analysis tools, assessment of methodology uncertainties, identification of pollutant trends and associated causes, etc.
Index Terms:
0345 Pollution: urban and regional [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0368 Troposphere: constituent transport and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3336 Numerical approximations and analyses [ATMOSPHERIC PROCESSES]
Primary Convener: Xiaohong Yao, Ocean University of China, Qingdao, China
Convener: Leiming Zhang, Environment Canada, Toronto, ON, Canada
Decoupling impacts of weather conditions on interannual variation in concentrations of criteria air pollutants in south China – constraining analysis uncertainties by using multiple analysis tools (1049741)
Xiaohong Yao, Ocean University of China, Qingdao, China, Yu Lin, ocean university of China, Sanya, China, Leiming Zhang, Environment and Climate Change Canada, Toronto, ON, Canada and He Meng, Qingdao Environmental Monitoring Center, Qingdao, China
Declines in gaseous elemental mercury concentrations in China caused by anthropogenic emission reductions as revealed by mercury stable isotopes (Invited) (1070765)
Xuewu Fu1, Xian Wu1, Hui Zhang2, Kaihui Tang1, Xun Wang1, Hui Zhang1, Qianwen Deng1 and Xinbin Feng3, (1)Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China, (2)Institute of Geochemistry, Chinese Academy of Sciences, Guiyag, China, (3)GIG Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
Decadal Trends of Criteria Pollutants and PM2.5 Components in Canadian Cities (1072106)
Leiming Zhang, Environment and Climate Change Canada, Toronto, ON, Canada, Xiaohong Yao, Ocean University of China, Qingdao, China, Huanbo Wang, Southwest University of Science and Technology, Mianyang, China, Irene Cheng, Environment and Climate Change Canada, Toronto, Canada and Ewa Dabek-Zlotorzynska, Environment and Climate Change Canada, Ottawa, Canada
Using Quantile Regression to Detect Regional and Global Signals in Atmospheric Mercury Trends (1088516)
Aryeh Feinberg1, Thandolwethu Dlamini1 and Noelle E Selin2, (1)Massachusetts Institute of Technology, Institute for Data, Systems, and Society, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Institute for Data, Systems, and Society; and Department Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, United States
Changes in particle number concentrations and their sources under largely reduced air pollutant emissions in Northern China (1099746)
Yujiao Zhu, Shandong University, Environment Research Institute, Jinan, China, Likun Xue, Shandong University, Environment Research Institute, Qingdao, China and Xiaohong Yao, Ocean University of China, Qingdao, China
Variability in persistent volcanic SO2 emissions detected by UV satellite measurements (1168087)
Nabil Nowak1, Simon A Carn2, Vitali E. Fioletov3, Chris A McLinden3, Nickolay Anatoly Krotkov4 and Can Li5, (1)Michigan Technological University, Department of Geological and Mining Engineering & Sciences, Houghton, United States, (2)Michigan Technological University, Department of Geological and Mining Engineering & Sciences, Houghton, MI, United States, (3)Environment and Climate Change Canada, Air Quality Research Division, Toronto, ON, Canada, (4)NASA Goddard Space Flight Center, Greenbelt, United States, (5)Earth System Science Interdisciplinary Center, University of Maryland, College Park, United States
