2013年-2017年江苏省环境空气中首要污染物变化分析研究

选择2013年-2017年环境空气质量监测数据进行统计分析,结果表明:成为影响江苏省环境空气质量的首要污染物有PM10、PM2.5、O3和NO2等;2016年,这些污染物成为首要污染物的天数占比大小依次为PM2.5 (36.8%)、O3(34.9%)、PM10(20.5%)和NO2(7.8%).秋冬季颗粒物对空气质量的影响大,春夏季则是O3污染的影响占优势.地区差异方面,苏北、苏中地区PM10作为首要污染物的天数占比总体高于苏南地区.苏南、苏中沿江部分地区NO2作为首要污染物的天数占比明显高于苏北地区.2013年-2016年,O3污染对空气质量的影响日益上升,将成为公众对于空气质量改善的另一个关注点.

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.