High reduction of ozone and particulate matter during the 2016 G-20 summit in Hangzhou by forced emission controls of industry and traffic
High reduction of ozone and particulate matter during the 2016 G-20 summit in Hangzhou by forced emission controls of industry and traffic
复制标题
2016年G-20杭州峰会期间工业和交通强制排放控制大幅减少臭氧和颗粒物
DOI：
10.1007/s10311-017-0642-2
复制
发表时间：
2017-12-01
影响因子：
15.7
通讯作者：
Mathur, Rohit
中科院分区：
文献类型：
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作者：
Li, Pengfei;Wang, Liqiang;Mathur, Rohit
由于过去几十年的快速城市化和工业化，中国许多地区都经历了空气污染事件。本文分析了2016年G20杭州峰会期间实施的排放控制措施对空气质量的影响。排放控制措施包括强制关闭高污染工业，限制城市和周边地区的交通和建筑排放。测量了空气动力学直径小于2.5 μm的颗粒物（PM2.5）和臭氧（O3）。我们还模拟了空气质量的预测系统，包括双向耦合的天气研究和预报和社区多尺度空气质量（WRF-CMAQ）模式。结果显示，G20峰会期间杭州市PM2.5和臭氧水平明显低于G20峰会前。臭氧的预测浓度降低了25.4%，而PM2.5的预测浓度降低了56%。
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 PM2.5and 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 PM2.5were reduced by 56%.