The Analysis of the Weather Conditions of a High Visibility Heavy Pollution Event in Shenyang

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Lu, Zhongyan^1 ; Wang, Yangfeng^2 ; Tian, Li^1 ; Zhang, Chenhe^1 ; Lin, Haifeng^1

Liaoning Province Meteorological Observatory, Shenyang

110166, China^1

Institute of Shenyang Atmospheric Environment CMA, Shenyang

110166, China^2

关键词: Atmospheric pollutants;    Atmospheric stability;    Atmospheric visibility;    Meteorological elements;    Moisture absorption;    Particulate Matter;    Surface layers;    Turbulent motion;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/2/022053/pdf
DOI  :  10.1088/1755-1315/199/2/022053

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

There was a high visibility heavy pollution event in Shenyang on October 21st, 2014. This paper analyzes the formation and maintenance of the heavy pollution weather from the aspects of weather situation, meteorological elements, atmospheric stability and pollutants transportation. The results show that the heavy pollution weather process is due to the surface layer atmosphere transports local atmospheric pollutants into the air by turbulent motion, and the inversion of the upper block pollutants diffuse into the sky, plus the northeaster wind transport, the heavy pollution occurs in Shenyang area. In the event of heavy pollution, the relative humidity is relatively low, and the moisture absorption effect of particulate matter in the atmosphere is limited, so the atmospheric visibility is not reduced to a lower level.