臭氧对南京市环境空气质量的影响研究

作者选取了2015年南京市国控空气自动监测站点的臭氧监测数据,通过不同角度分析,探讨了臭氧对南京市环境空气质量的影响.研究表明:南京市O3-8第90百分位数全年平均为171μg/m3,超出标准限值0.07倍;其中夏季数值最高,春末和秋初次之,冬季最低;南京O3逐时日变化呈明显"单峰型"特征,且不同季节曲线趋势基本一致,夏季、春季和秋季小时样本数均有超标,冬季全部达标;南京市全年O3-8超标率13.7%,O3是仅次于PM2.5的影响南京市环境空气质量的首要污染物,夏季尤为明显.

Study on Effect of Ozone on Air Quality in Nanjing City

Theozone monitoring data of Nanjing city in 2015 were selected and the influences of ozone on the environmental air quality in Nanjing city were analyzed by different angles. The study shows that:The annual average of O3 -8 the 90th percen-tile data was 171μg/m3 , 0. 07 times higher than the standard limit value; the highest in summer, late spring and early autumn were the second, and the lowest in winter;the hourly data of O3 by days showed a single peak type characteristics and the trend curve in different seasons consistent. The data in summer, spring and autumn had exceeded the standardlimit value, butnot in win-ter;the exceeded rate of O3 -8 was 13. 7%, O3 was one of the primary pollutant that affected the air quality of Nanjing city, es-pecially in summer.