空气污染时空分布特点及成因——以山西省为例  

Spatial and Temporal Distribution Characteristics and Causes of Air Pollution——Shanxi Province as an Example

作　　者：王刚 吴春山[1] 刘文伟[1] 孙启元[1] WANG Gang;WU Chunshan;LIU Wenwei;SUN Qiyuan(School of Environmental Science and Engineering,Fujian Normal University,Fuzhou,Fujian 350007,China)

机构地区：[1]福建师范大学环境科学与工程学院,福建福州350007

出　　处：《福建师大福清分校学报》2021年第2期139-146,共8页Journal of Fuqing Branch of Fujian Normal University

基　　金：国家自然科学基金(No.51509037,No.52070044).

摘　　要：山西省矿产资源丰富,是典型煤烟型大气污染的地区.基于山西省大气污染整治时期(2017—2019年)SO_(2)、NO_(2)、PM_(10)、PM_(2.5)、CO、O_(3)-8h等常规环境空气质量指标的自动监测数据,探讨山西省太原市、大同市、运城市的大气污染时空分布特点与成因.结果表明:在2019年,SO_(2)、PM_(10)、PM_(2.5)、CO污染指标年平均浓度分别为24、93、48μg·m^(-3)、2.2 mg·m^(-3),与2017年下降趋势明显,降低百分比为57%、15%、19%、27%;而NO_(2)和O_(3)-8h略微降低趋势,2019年平均浓度为44、142μg·m^(-3),相比2017年上升了7%、3%,其主要原因可能与地形地貌、气候变化、燃煤供暖、锅炉烟气等有一定的关系.Shanxi Province is rich in mineral resources and is an area of typical soot-based air pollution.This study explored the spatial and temporal distribution characteristics and causes of air pollution in Taiyuan,Datong,and Yuncheng in Shanxi Province on the basis of the automatic monitoring data of SO_(2),NO_(2),PM_(10),PM_(2.5),CO,O_(3)-8h and other conventional ambient air quality indicators during the air pollution improvement period(2017-2019).The results indicated that in 2019,the annual average concentrations of SO_(2),PM_(10),PM_(2.5),and CO pollution indicators were 24,93,48μg·m^(-3),and 2.2 mg·m^(-3)respectively,which decreased by 57%,15%,19%,and 27%compared with 2017;while NO_(2)and O_(3)-8h showed a slight upward trend.Comparing with 2017,the average concentrations in 2019 were 44μg·m^(-3)and 142μg·m^(-3),an increase of 7%and 3%,which was mainly due to topography,climate change,coal-fired heating,and boiler smoke.

关 键 词：空气质量 大气污染 时空分布 成因 山西省 

分 类 号：X51[环境科学与工程—环境工程]