Distribution Characteristics and Health Risk Assessment of Antimony in Atmospheric Particulates in a Northern City of China

查看全文 作　　者：SHEN [1]Yiwen;ZHAO [1]Hao;ZHAO [1]Changxian;DONG [3]Shuofei;CAO [1]Yuanming;XIE [1]Jiaojao;LYU [3]Meiling;YUAN [1,2]Chungang 机构地区：[1]Hebei Key Lab of Power-plant Flue Gas Multi-pollutants Control,Department of Environmental Science&Engineering,North China Electric Power University,Baoding,071000,P.R.China;[2]Key Laboratory of Resources and Environmental Systems Optimization,Ministry of Education,College of Environmental Science and Engineering,North China Electric Power University,Beijing,102206,P.R.China;[3]Agilent Technologies Co.,Ltd.(China),Beijing,100102,P.R.China 出　　处：《Chemical Research in Chinese Universities》索引2023年第39卷第3期,共7页 基　　金：supported by the National Natural Science Foundation of China(No.22176056);the Fundamental Research Funds for the Central Universities,China(No.2017ZZD07). 摘　　要：Over the last several decades,scientists have established a wealth of evidence to demonstrate the risks posed to human health by toxic elements in atmospheric particulate matter(PM).Antimony(Sb),as one of ever ignored PM-bound heavy metals,attracts more and more attentions and has been regarded as one emerging air pollutant with the change of pollution sources of particulate matter.To study the distribution of Sb in PM with different particle sizes is of great practical significance for understanding its source and health risks.In this study,the size distributions of Sb in PM(PM_(2.5),PM_(10)and TSP)in different seasons were studied from July 2018 to May 2019.The high concentration of PM-bound Sb was found and the health risk was evaluated.Sb was enriched in fine particles and showed higher values in winter,which was probably caused by coal combustion and meteorological conditions.It was also found that traffic-related non-exhaust emissions might become another main contribution to fine particle Sb.Health risk assessment demonstrated that the hazard quotient(HQ)of Sb in PM_(2.5)and PM_(10)for children(PM_(2.5):1.54,PM_(10):1.32)exceeded the acceptable threshold and ingestion contributed the most to the HQ for both children and adults. 关 键 词：Particulate matter(PM) ANTIMONY Size distribution Health risk