摘要
本文利用PM_(2.5)在线监测仪、在线气体/气溶胶监测仪(Marga)及单颗粒气溶胶质谱(SPAMS)等仪器分析了冬奥会期间太原市PM_(2.5)浓度、组分变化特征及其来源,研究表明,冬奥会期间太原市PM_(2.5)浓度下降明显,降幅达47.2%,同其他城市相比,太原市环境空气质量改善明显。与冬奥会前相比,PM_(2.5)各组分浓度均有不同程度的降低,其中,SO_(4)^(2-)浓度下降最为明显。PM_(2.5)在线来源解析结果表明,冬奥会期间燃煤源、工业工艺源、机动车尾气源占比均有不同程度的降低。
The variation characteristics of PM_(2.5)concentration,components and the source of PM_(2.5)were studied by online instrument of PM_(2.5),online gas and aerosol monitoring instrument(Marga)and single particle aerosol mass spectrometer(SPAMS)during the Beijing winter olympic games in Taiyuan.Results showed that the average concentration values of PM_(2.5)decreased by 47.2%during the winter olympic games.A significant improvement on ambient air quality was founds compared with other cities.The results showed the the composition concentration in PM_(2.5)reduced in different degree,the concentration of SO_(4)^(2-)decreases most quicky in all components of PM_(2.5).The results of fast source apportionment indicates that the ratio of industry,coalcombusion and vehicle emissions source reduced in different degree during the winter olympic games.
作者
张国斌
Zhang Guobin(Shanxi Taiyuan Ecological Environment Monitoring Center,Taiyuan Shanxi 030002,China)
出处
《山西化工》
CAS
2023年第6期214-216,共3页
Shanxi Chemical Industry
