Distributions Characteristics and Causes of SO2 Pollution in China during 2014
WANG Xiao
CAO Nianwen
DUAN Xiaotong
YANG Sipeng
SONG Xiuyu
Abstract：Based on the database of daily monitoring data of SO2 collected in 161 cities of China during 2014,this paper analyzed the regional and temporal distribution characteristics and causes of SO2 pollution by using ArcGIS and SPSS with spatial interpolation and correlation methods.The analysis suggested that the concentration of SO2 ranged from 2.158 to 117.892 μg/m3 and yearly average concentration was 34.253 μg/m3;the SO2 pollution in China was characterized by temporal and regional distdbution:SO2 pollution during winter and the heating period was more serious than that in summer,the north more serious than in the south,especially in Shandong,Hebei,Shanxi and Liaoning provinces as well as the region along the Yellow River in Ningxia and Inner Mongolia,and typical cases of the above heavy polluted areas were then analyzed.In conclusion,regional distribution of SO2 pollution was mainly decided by the strength of human activities (industrial pollution and domestic pollution) and natural factors (weather and terrain conditions).
Keywords：SO2temporal distributionregional distributionheating periodcoal fired
Publication Date：2017-01-01
Pages：8( 115-122 )