Analysis on Change of Primary Pollutant in Ambient Air of Jiangsu Province during 2013 and 2017
The environmental air quality monitoring data from 2013 to 2017 was analyzed. The results showed that:the prima-ry pollutants that affect the air quality in Jiangsu province have been PM10,PM2.5,NO2and O3. In 2016,their proportion as the primary pollutant was 36.8%(PM2.5),34.9%(O3),20.5%(PM10)and 7.8%(NO2). The major impact on air quality in au-tumn and winter is particle pollutant,while in spring and summer it is O3.In terms of regional differences,the proportion of the days that PM10became the primary pollutant in the north-central region was greater than that inthe southern area. The proportion of the days that NO2became the primary pollutant in the south-central region was significantly greater than that in the northern ar-ea.During 2013 and 2016,the O3pollution impact on air quality is rising, and may become another public concern for the im-provement of air quality.