Analysis of the Temporal and Spatial Distribution of Haze and its Influencing Factors in Shanghai

Ma Jing-hui, Mao Zhuo-cheng, Yu Zhong-qi, Qu Yuan-hao, Geng Fu-hai, Xu Jian-ming, Chen Min
2016 Polish Journal of Environmental Studies  
The aim of this paper is to assess the influence of meteorological conditions on the variability of haze in Shanghai during 1981-2013. Based on the observational data of haze and air quality in Shanghai during this period and on the National Centers for Environmental Prediction final analysis data, the long-term variability and the spatial distribution of the haze was analyzed as well as with relationship between haze and atmospheric variables, including visibility, relative humidity, and air
more » ... humidity, and air quality. Temporal evolution showed that the annual number of haze days in Shanghai represented a rapid decline in the last decade, which was caused by the direct effects of relative humidity and visibility. Global warming-induced changes, such as a warmer temperature, lower relative humidity, and wind speed in winter, were other important factors in the decline. Spatial distribution showed that the annual number of haze days in mid-western Shanghai was higher than those in the southeastern suburbs.
doi:10.15244/pjoes/62128 fatcat:fckoszpck5hdfnzdj4a77adog4