沈阳市2016—2018年大气PM2.5污染状况及来源分析  

Analysis on pollution status and source apportionments of PM in atmosphere in Shenyang City,2016-2018

作　　者：王俊龙[1] 孙莹 赵晨凯 孙丽 崔仲明[1] 朱京海 贺淼[2,3] WANG Junlong;SUN Ying;ZHAO Chenkai;SUN Li;CUI Zhongming;ZHU Jinghai;HE Miao(Liaoning Center for Disease Control and Prevention,Shenyang,Liaoning 110005,China;School of Public Health,China Medical University,Shenyang,Liaoning 110122,China;Key Laboratory of Environmental Health Damage Research and Assessment,Shenyang,Liaoning 110122,China)

机构地区：[1]辽宁省疾病预防控制中心,辽宁沈阳110005 [2]中国医科大学公共卫生学院,辽宁沈阳110122 [3]辽宁省环境健康损害研究与评价重点实验室,辽宁沈阳110122

出　　处：《海峡预防医学杂志》2021年第1期1-4,共4页Strait Journal of Preventive Medicine

基　　金：辽宁省自然科学基金重点项目(20170541038);沈阳市自然科学基金(17-231-1-48)。

摘　　要：目的分析沈阳市大气中PM2.5污染水平及其来源。方法采集沈阳市和平区和沈河区2016年1月至2018年12月的大气PM2.5样品,检测PM2.5浓度、多环芳烃、重金属和水溶性离子含量并用正矩阵因子分析法分析来源。结果沈阳市2016—2018年和平区和沈河区PM2.5年均浓度呈下降趋势,平均浓度分别为59.2μg/m3和68.1μg/m3。PM2.5中多环芳烃的来源为燃煤、机动车排放、石油挥发泄露和工业排放;金属元素和水溶性离子来源为燃煤源、二次污染源、土壤扬尘和工业排放。结论沈阳市2016—2018年大气PM2.5污染得到改善,其主要来源是燃煤、机动车尾气排放和二次源复合污染。Objective To analyze the pollution status and source apportionment of PM2.5 in atmosphere in Shenyang City,2016-2018. Methods PM2.5 samples in atmosphere were collected from Jan.2016 to Dec.2018 in Heping and Shenhe District of Shenyang City. The concentrations of PM2.5, polycyclic aromatic hydrocarbons(PAHs),heavy metal and water-soluble ion were detected and the sources of PM2.5 were analyzed by using positive matrix factorization(PMF) method. Results The mean annual concentrations of PM2.5 in Heping and Shenhe district were in decreasing tendency, they were 59.2μg/m3 and 68.1μg/m3 respectively. The sources of PAHs in PM2.5 were from coal combustion,vehicle exhaust, petroleum oil volatilization and industrial emissions. The sources of metal element and water-soluble ion were from coal combustion,secondary pollution sources,soil dust and industrial emissions. Conclusion The PM2.5 pollution status in atmosphere in Shenyang City was ameliorated from 2016 to 2018. The main sources of pollutants are from coal combustion,vehicle exhaust and secondary pollution sources.

关 键 词：PM2.5 多环芳烃 重金属 水溶性离子 源解析 

分 类 号：R122.1[医药卫生—环境卫生学]