A013
Air Pollution Mitigation and Carbon Neutrality in Megacities and Gigacities

Session ID#: 160216

Session Description:
Humanity faces a multitude of severe global environmental changes, such as climate change and global health effects. A clear example of future development is the rapid, large-scale urbanization of China. Already now about 10% of the global population is living in the area in eastern China inside a triangle confined roughly by the lines between Beijing, Shanghai, and Xian. The population is still increasing and gradually filling the less-urbanized areas between the individual cities, so that this region is becoming one gigacity, which is a grand challenge in view of the climate and air pollution. What happens there will continue to affect the entire planet and future course of the Anthropocene.

In this region, continuous improvement of air quality and associated reduction of carbon emissions have demonstrated the importance of multi-pollutant planning and coordinated control of air pollution and greenhouse gases. This session welcome contributions that (1) describe impact of clean air measures and policies on carbon neutrality and climate change, including observational evidence and model simulations; (2) identify key knowledge gap in determining the health and climate benefit of pollution controls; and (3) analyze past experiences and future solution on coordinated governance of air quality and carbon neutrality.

Index Terms:

0345 Pollution: urban and regional [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0365 Troposphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0368 Troposphere: constituent transport and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
1610 Atmosphere [GLOBAL CHANGE]

Primary Convener:  Yafang Cheng, Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
Conveners:  Markku Tapio Kulmala, University of Helsinki, Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, Helsinki, Finland, Hang Su, Max Planck Institute for Chemistry, Mainz, Germany and Dabo Guan, Tsinghua University, Department of Earth System Sciences, Beijing, China
 
Improvements, Trends, and Drivers of Black Carbon Emission in Urban and Rural Area of China from 1960 to 2017. (1071150)
Haoran Xu, Peking University, Beijing, China and Shu Tao, Peking University, College of Urban and Environmental Sciences, Beijing, China
 
Disentangling Drivers of Air Pollutant and Health Risk Changes during the COVID-19 Lockdown in China (1080809)
Fuzhen Shen, Forschungszentrum Jülich GmbH, Jülich 52428, Germany
 
Environmental and Health Impacts of Solid Fuel Use in Urban Residential Sector in China (1085128)
Wenxiao Zhang and Shu Tao, Peking University, College of Urban and Environmental Sciences, Beijing, China
 
Anthropogenic Heat Helps Rreduce PM2.5 Pollution and Related Health Burden in China (1086674)
Zehui Liu, Peking University, Beijing, China and Lin Zhang, Peking University, Department of Atmospheric and Oceanic Sciences, Beijing, China
 
Estimates of future new particle formation under different emission scenarios in Beijing (1105527)
James Brean, Alex Rowell, David Beddows, Zongbo Shi and Roy M Harrison, University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom
 
Green Growth, Decoupling and Degrowth in Chinese Cities (1105557)
Klaus Hubacek1, Yuli Shan1,2, Yuru Guan3 and Dabo Guan4, (1)University of Groningen, Groningen, Netherlands, (2)University of Birmingham, Birmingham, United Kingdom, (3)University of Groningen, Integrated Research for Energy, Environment and Society, Groningen, Netherlands, (4)University College London, London, United Kingdom
 
Spring Festival points the way to cleaner air in China (1108764)
Siwen Wang1, Hang Su1, David G Streets2, C Huang3, Qiang Zhang4, Zifeng Lu2, Kebin He5, Meinrat O Andreae1,6, Ulrich Poeschl1 and Yafang Cheng7, (1)Max Planck Institute for Chemistry, Mainz, Germany, (2)Argonne National Laboratory, Argonne, IL, United States, (3)Shanghai Academy of Environmental Sciences, Shanghai, China, (4)Tsinghua University, Beijing, China, (5)Tsinghua University, School of Environment, Beijing, China, (6)Scripps Institution of Oceanography, UCSD, La Jolla, United States, (7)Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
 
Health Benefits of Vehicular Pollution Mitigation Programs in China's Urban Agglomerations (1141088)
Haikun Wang, Nanjing University, School of Atmospheric Sciences, Nanjing, China
 
Highly Resolved Dynamic Emissions of Air Pollutants and Greenhouse Gas CO2 during COVID-19 Pandemic in East China (1143402)
C Huang1, Jingyu An1, Hongli Wang Miss1 and Hang Su2, (1)Shanghai Academy of Environmental Sciences, Shanghai, China, (2)Max Planck Institute for Chemistry, Mainz, Germany
 
The reduction of atmospheric CO2 concentrations in East China during COVID-19 pandemic: Evidence from observation and simulations (1144937)
Yanyu Wang and C Huang, Shanghai Academy of Environmental Sciences, Shanghai, China
 
Long-term trend of ozone pollution in China during 2014-2020: distinct seasonal and spatial characteristics (1147330)
Wenjie Wang1, Hang Su1 and Yafang Cheng2, (1)Max Planck Institute for Chemistry, Mainz, Germany, (2)Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
 
Ozone pollution mitigation over the Guangdong-Hong Kong-Macao Greater Bay Area under the ‘Dual-Carbon’ scenario (1150342)
Danyang Li1, Lin Zhang1, Xiaorui Liu2, Chaoyi Guo2, Kai Wu2 and Hancheng Dai2, (1)Peking University, Department of Atmospheric and Oceanic Sciences, Beijing, China, (2)College of Environmental Sciences and Engineering, Peking University, Beijing, China
 
Types of High oxygenated organic molecules Observed in Megacity City Shanghai (1158918)
Yingge Ma1, Matthieu Riva2, Dandan Li2, Dan Dan Huang1, Hui Chen3, Chen Jianmin4, Christian George5 and C Huang1, (1)Shanghai Academy of Environmental Sciences, Shanghai, China, (2)Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, Villeurbanne, France, (3)Huichen@Shu.Edu.Cn, Shanghai, China, (4)Jmchen@Fudan.Edu.Cn, Shanghai, China, (5)University Claude Bernard Lyon 1, CNRS, Villeurbanne, France
 
Roadmap of Coordinated Control of PM2.5 and Ozone in Yangtze River Delta (1185619)
Haixia Dai, Jingyu An and C Huang, Shanghai Academy of Environmental Sciences, Shanghai, China
 
Pathways of China’s PM2.5 air quality 2015-2060 in the context of carbon neutrality (Invited) (1194583)
Kebin He, Tsinghua University, School of Environment, Beijing, China, Jing CHENG, Department of Earth System Science,Tsinghua University, Beijing, China, Dan Tong, Center for Earth System Science, Tsinghua University, Beijing, China, Yang Liu, Department of Earth System Science, Tsinghua University, Beijing, China and Qiang Zhang, Tsinghua University, Beijing, China
 
Reducing Ozone Concentrations in the year 2050 under a Greenhouse Gas (GHG) Energy Scenario in California (1052938)
Yusheng Zhao, University of California Davis, Davis, CA, United States and Michael Kleeman, University of California Davis, Davis, United States
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