Assessments of the differences of atmospheric environmental capacity between strong and weak Asian monsoon years in Mengzi
YANG Qing-jian1, ZHAO Tian-liang1, ZHENG Xiao-bo2, SHI Jian-wu3, ZHANG Chao-neng3, CHANG Jia-cheng1, ZHANG Kai1, ZHONG Yao-qian3, YU Chao1
1. Joint International Research Laboratory of Climate and Environment Change, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, China;
2. Guizhou Institute of Mountainous Environment and Climate, Guiyang 550002, China;
3. Faculty of Environment Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
Atmospheric environmental capacity is an important index to support air quality management and the total quantity control of air pollutant emissions. The air quality model WRF-Chem was used to simulate and estimate the atmospheric environmental capacity under the background of Asian monsoon climate change in Mengzi over the Yunnan Plateau. 2005 and 2015 respectively was chosen as the strong and weak monsoon years according to the normalized South-Asian Monsoon Index. Concentrations of major atmospheric pollutants at all seasons (represented by January, April, July and October respectively) of 2015 and summer (represented by July) of 2005 were simulated, the atmospheric environmental capacities of CO, NO2, SO2, PM2.5 and PM10 in Mengzi were estimated with 120.31、1.127、1.875、1.267、1.688(×104t/a), respectively. The atmospheric environmental capacity of major air pollutants in winter was the smallest; and in spring was the largest excepting PM10, and the PM2.5 emissions in winter reached saturation. Compared with the 2015 summer with weak monsoon, the atmospheric environmental capacities of CO, NO2, SO2, PM2.5 and PM10 increased respectively by 4.81%, 3.86%, 12.6%, 18.4% and 8.7% in 2005 summer with strong monsoon, and the PM2.5 increased most. The interannual variation of the Asian monsoon plays an important role in regulating the air quality and atmospheric environmental capacity of the Yunnan plateau.
杨清健, 赵天良, 郑小波, 史建武, 张朝能, 常嘉成, 张凯, 钟曜谦, 于超. 亚洲季风强弱年蒙自市大气环境容量差异估算[J]. 中国环境科学, 2019, 39(10): 4054-4064.
YANG Qing-jian, ZHAO Tian-liang, ZHENG Xiao-bo, SHI Jian-wu, ZHANG Chao-neng, CHANG Jia-cheng, ZHANG Kai, ZHONG Yao-qian, YU Chao. Assessments of the differences of atmospheric environmental capacity between strong and weak Asian monsoon years in Mengzi. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(10): 4054-4064.
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