佳木斯市2010~2018年大气污染物浓度时间变化特征分析

emporal variation characteristics of air Pollutant concentration during 2010~2018 in Jiamusi

目的:分析佳木斯市市区典型大气污染物PM_(10)、PM_(2.5)、SO_(2)、NO_(2)浓度的时间特征。方法:依据环境空气质量标准(GB 3095-2012)对PM_(10)、PM_(2.5)、SO_(2)、NO_(2)的浓度进行日平均浓度、月平均浓度、季平均浓度、采暖期与非采暖期平均浓度、年平均浓度描述和评价。结果:2010~2018年PM_(10)、PM_(2.5)、SO_(2)、NO_(2)年均值、日均值均未超过国家环境空气质量二级标准;污染较重的月份集中在冬春季采暖期;污染物主要为颗粒物,污染源由固定污染源向移动污染源转变。结论:佳木斯市相关部门应结合时间因素控制源头污染。

Objective:The temporal characteristics of typical air pollutants PM_(2.5),PM_(10),SO_(2) and NO_(2) in Jiamusi were analyzed.Method:According to the environmental air quality standard(GB 3095-2012),the daily average concentration,monthly average concentration,seasonal average concentration,heating and non-heating average concentration and annual average concentration of PM_(2.5),PM_(10),SO_(2) and NO_(2) were described and evaluation.Result:The annual average,daily average of PM_(2.5),PM_(10),SO_(2) and NO_(2) during 2010~2018 did not exceed the second-level national environmental air quality standards;the heavily polluted months were concentrated in the heating period in winter and spring;the pollutants were mainly particulate matter,and the pollution sources changed from fixed pollution sources to mobile pollution sources.Conclusion:Jiamusi City,the relevant departments should be combined with the time factor to control the source of pollution.