绥化市大气污染特征分析

Analysis on characteristics of air pollution in Suihua City

利用2016年1月~2018年12月绥化市城区空气质量资料,对绥化市城区大气污染特征进行分析.结果表明,2016~2018年,绥化市城区空气质量相对较好,年优良天数比例为86.7%~91.8%,总体表现为非供暖期空气质量良好,供暖期空气污染较为严重.绥化市主城区的污染天数中首要污染物主要是PM_(2.5),其次是PM_(10)和O_(3),并未出现CO、NO_(2)和SO_(2)为首要污染物的情况发生.臭氧8 h月平均质量浓度峰值主要出现在6、7月份,呈现双峰或单峰结构.其他5类污染物月平均质量浓度变化趋势呈现与臭氧8 h质量浓度相反的特点.

Using the air quality data of Suihua City from January 2016 to December 2018,the characteristics of air pollution in Suihua City were analyzed.The results showed that from 2016 to 2018,the air quality in the urban area of Suihua City was relatively good,with the percentage of good days per year being 86.7%~91.8%.The overall performance was that the air quality in the non-heating season was good,and the air pollution in the heating season was more serious.Among the pollution days in the main urban area of Suihua City,the primary pollutant was mainly PM_(2.5),followed by PM_(10) and O_(3).There was no occurrence of CO,NO_(2) and SO_(2) as the primary pollutants.The peak of the 8-hour monthly average mass concentration of ozone mainly appeared in June and July,showing a double-peak or single-peak structure.The change trend of the monthly average mass concentration of the other five types of pollutants presents the opposite characteristics of the 8-hour ozone mass concentration.