|
|||||
|
|
High reduction of ozone and particulate matter during the 2016 G-20 summit in Hangzhou by forced emission controls of industry and traffic |
|
| Authors: | Pengfei Li Liqiang Wang Ping Guo Shaocai Yu Khalid Mehmood Si Wang Weiping Liu John H Seinfeld Yang Zhang David C Wong Kiran Alapaty Jon Pleim Rohit Mathur |
| Institution: | 1.Research Center for Air Pollution and Health, Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences,Zhejiang University,Hangzhou,People’s Republic of China;2.Division of Chemistry and Chemical Engineering,California Institute of Technology,Pasadena,USA;3.Department of Marine, Earth and Atmospheric Sciences,North Carolina State University,Raleigh,USA;4.Computational Exposure Division,National Exposure Research Laboratory,RTP,USA;5.Systems Exposure Division,National Exposure Research Laboratory,RTP,USA |
| Abstract: | Many regions in China experience air pollution episodes because of the rapid urbanization and industrialization over the past decades. Here we analyzed the effect of emission controls implemented during the G-20 2016 Hangzhou summit on air quality. Emission controls included a forced closure of highly polluting industries, and limiting traffic and construction emissions in the cities and surroundings. Particles with aerodynamic diameter lower than 2.5 μm (PM2.5) and ozone (O3) were measured. We also simulated air quality using a forecast system consisting of the two-way coupled Weather Research and Forecast and Community Multi-scale Air Quality (WRF-CMAQ) model. Results show PM2.5 and ozone levels in Hangzhou during the G-20 Summit were considerably lower than previous to the G-20 Summit. The predicted concentrations of ozone were reduced by 25.4%, whereas the predicted concentrations of PM2.5 were reduced by 56%. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |