2013年-2017年江苏省环境空气中首要污染物变化分析研究

摘要

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.%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.