Pollution Characteristics and Health Risk Assessment of PM2.5 Heavy Metals in Tianjin and Qingdao in Winter of 2018-2019

被引：0

作者：

Zhao M.-S. ^{[1
,2
]}

Ren L.-H. ^{[1
]}

Li G. ^{[1
]}

Liu Y.-N. ^{[2
]}

Zhao G. ^{[1
,3
]}

Zhang J.-H. ^{[1
]}

Gao Y.-G. ^{[1
]}

Yang X.-Y. ^{[1
]}

机构：

[1] State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing

[2] School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou

[3] School of Mining Engineering, North China University of Science and Technology, Tangshan

来源：

Huanjing Kexue/Environmental Science | 2022年 / 43卷 / 12期

关键词：

ecological risk; enrichment factor; health risk assessment; heavy metals; PM[!sub]2.5[!/sub;

D O I：

10.13227/j.hjkx.202205143

中图分类号：

学科分类号：

摘要：

PM2.5 filter samples were collected in Tianjin and Qingdao from December 18, 2018 to January 22, 2019. The mass concentrations of 18 elements (Na, Mg, Al, K, Ca, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Mo, Cd, Ba, and Pb) were determined using inductively coupled plasma mass spectrometry (ICP-MS). The enrichment factor was used to discuss the enrichment degree in PM2.5. The ecological risk and health risk of heavy metals in PM2.5 were evaluated. The results showed that the average concentrations of PM2.5 in Tianjin and Qingdao were (93.6 ±53.5)μg·m -3 and (85.5 ± 60.3)μg·m -3, respectively. Zn had the highest concentration among the trace elements. The enrichment factor results showed that the Se, Cd, Zn, Pb, Mo, Cu, and As elements were highly enriched and polluted, which were mainly affected by anthropogenic activities. The potential ecological risk indexes of heavy metals in Tianjin were as follows: Cd > Mo > Se > Pb > As > Cu > Zn > Ni > Cr > V; in Qingdao, the order was Cd > Se > Mo > As > Pb > Zn > Cu > Ni > Cr > V. Cd contributed most to the ecological risk, with 67% and 86%, respectively, in Tianjin and Qingdao, indicating an extremely strong risk level. The health risk assessment showed that oral and manual ingestion was the main exposure route causing non-carcinogenic and carcinogenic risks, and both the non-carcinogenic and carcinogenic risks in children were higher than those in adults. The comprehensive non-carcinogenic risk (HI) values of heavy metals in Tianjin and Qingdao were 5.38 and 5.40 for children and 1.04 and 1.02 for adults, with both higher than 1. This indicated that both adults and children had obvious non-carcinogenic risks, and As and Pb posed the highest non-carcinogenic risks. The order of carcinogenic risk (CR) of heavy metals was As > Cr > Pb. As posed carcinogenic risk in children in Tianjin and Qingdao, and Cr and Pb had potential carcinogenic risk. © 2022 Science Press. All rights reserved.

引用

页码：5376 / 5386

页数：10

共 44 条

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