2016年遂宁市主城区空气质量状况分析

摘要

根据2016年遂宁市主城区环境空气自动监测数据,分析了2016年遂宁市环境空气质量状况,研究了空气质量变化特征,并与周边市州的空气质量进行了横向比较.研究结果发现,2016年遂宁市空气质量优良率为81.4％,优良率最高的月份是4月份,最低的是8月份、其次是2月份;首要污染物为PM2.5,6种污染因子中仅PM2.5年均浓度未达到空气质量二级标准,其超标0.25倍;PM10和PM2.5月均浓度整体上呈现出“船式”变化趋势,而03呈现出与其相反的变化趋势;遂宁市2016年的空气质量较同期显著改善,并明显优于周边地区.最后结合遂宁市大气污染特征,提出了5条防治措施.%Based on ambient air monitoring data of Suining urban area in 2016,the air quality of Suining City was analyzed,the change characteristics of Suining city was studied,and the air quality was compared with that of the adjacent cities.The results demonstrated that the rate of good air quality of Suining City in 2016 was 81.4％,April had the highest rate of good air quality while August had the lowest rate,followed by February.The primary pollutant in the air was PM2.5.Among the six pollution factors,PM2.5 was the only factor that did not meet the national secondary standards,and PM2.5 concentration was 0.25 times over the national secondary standard.Overall,the monthly average concentration of PM10 and PM2.5 showed "boat form" variation trend,however,the monthly average concentration of 03 presented opposite change trend.The air quality of Suining in 2016 was better than that in 2015,and obviously better than areas adjacent cities.Finally,according to the air pollution characteristics of Suining City in 2016,five atmospheric prevention and control measures were put forward.