标题: Pollution Characteristics, Chemical Compositions, and Population Health Risks during the 2018 Winter Haze Episode in Jianghan Plain, Central China
作者: Jiang, HM (Jiang, Huimeng); Lei, XW (Lei, Xiaowei); Xiao, H (Xiao, Han); Chen, DH (Chen, Danhong); Zeng, P (Zeng, Pei); Yang, XY (Yang, Xingyun); Wang, ZW (Wang, Zuwu); Cheng, HR (Cheng, Hairong)
来源出版物: ATMOSPHERE 卷: 11 期: 9 文献号: 954 DOI: 10.3390/atmos11090954 出版年: SEP 2020
摘要: To determine the pollution characteristics, chemical compositions, and population health risks of PM2.5 at different pollution levels, PM2.5 samples were intensively collected during the long-lasting winter haze episode from 13-23 January 2018 in Xiantao in Jianghan Plain (JHP), central China. The higher PM2.5 levels during the severe pollution period were dominated by the WNW-NNE air-masses, whereas the lower PM2.5 concentrations during other pollution periods were mainly affected by the NE, S, and NW air-masses. The NO3-/SO42- and OC/EC ratios indicated a mixed contribution of intensive vehicle exhaust and secondary formation. The enrichment factor and geo-accumulation index for assessing the PM2.5-bound metal(loid)s contamination levels were positively correlated. Ingestion is the dominant exposure pathway of PM2.5-bound metal(loid)s for children and adults, followed by inhalation and dermal contact. As, Cr, and Pb may pose carcinogenic and non-carcinogenic risks, whereas Sb and V may only pose non-carcinogenic risks for children and adults. The population health risks may not depend on the pollution levels but depend on the PM2.5-bound metal(loid)s concentrations. PM2.5-bound metal(loid)s may pose much higher population health risks for adults compared to children. More attentions should be paid to the population health risks of PM2.5-bound metal(loid)s during a long-lasting winter haze episode in JHP.
作者关键词: PM2.5; winter haze episode; metal(loid)s; population health risk; Xiantao; Jianghan Plain
地址: [Jiang, Huimeng; Lei, Xiaowei; Xiao, Han; Chen, Danhong; Zeng, Pei; Wang, Zuwu; Cheng, Hairong] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.
[Yang, Xingyun] Xiantao Municipal Ecol Environm Bur, Xiantao 433000, Peoples R China.
通讯作者地址: Wang, ZW; Cheng, HR (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.
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