2019年遂宁市环境空气质量分析

Analysis of Ambient Air Quality in Suining City in 2019

了解遂宁市环境空气质量的现状,科学分析大气污染的成因,结果发现,2019年遂宁市环境空气质量在全国169个重点城市中排名第14位,同比上升2位,空气质量优于四川省平均水平。2019年首要污染物为臭氧,颗粒物超标天数为历年最低,空气质量优良率为93.4%,2019年空气质量最差的月份为1月,最好的是10月,O 3污染峰值为15点到17点;PM 2.5污染峰值为23点至第二天凌晨2点;PM 10污染峰值为22点至第二天凌晨2点。最后结合遂宁市的大气污染特征,提出了3条防治建议。

To understand the current situation of environmental air quality in suining city,and to scientifically analyze the causes of air pollution,it was found that in 2019,suining ranked 14th among 168 key cities in China in terms of environmental air quality,rising 2 places year on year,and the air quality was better than the average level of sichuan province.In 2019,the primary pollutant in suining is O 3,and the number of days when particulate matter exceeds the standard is the lowest in history.The rate of excellent and good air quality is 93.4%.PM 2.5 pollution peaks from 23 am to 2 am the next day;PM 10 pollution peaks between 22 am and 2 am the next day.Finally,combining with the characteristics of air pollution in suining city,five prevention and control measures are put forward.