[Sources and Health Risks of Heavy Metals in Atmospheric PM<sub>2.5</sub> Based on APCS-MLR and PMF Models].
摘要
in the study area mainly fell into four categories: motor vehicle sources, industrial sources, coal burning sources, and natural sources; Mn, Cu, and Zn were mainly from motor vehicle sources; Co was mainly from industrial sources represented by the furniture factory; As, Cd, and Pb were mainly from coal burning; and Fe and Ba were mainly from natural sources. APCS-MLR and PMF model analysis showed that the pollution sources caused by human activities (motor vehicle sources, industrial sources, and coal sources) had a higher contribution rate, and the contribution rate of coal sources in the two models ranged from 20-40%. Health risk assessment analysis showed that Cu, Pb, Zn, Mn, Cd, Co, and As did not have non-carcinogenic risks, and the non-carcinogenic risks were in the order of children > adult men > adult women. As and Mn had potential carcinogenic risks for all three groups, and the carcinogenic risk for adult men was the highest.