Pollution Characteristics and Health Risk Assessment of Heavy Metals in Road Dust from Non-ferrous Smelting Parks

被引：7

作者：

Feng Y.-Y. ^{[1
]}

Shi J.-W. ^{[1
]}

Zhong Y.-Q. ^{[1
]}

Han X.-Y. ^{[2
]}

Feng Y.-C. ^{[1
]}

Ren L. ^{[1
]}

机构：

[1] Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming

[2] Faculty of Architectural Engineering, Kunming University of Science and Technology, Kunming

来源：

Huanjing Kexue/Environmental Science | 2020年 / 41卷 / 08期

关键词：

Enrichment factor; Health risk assessment; Heavy metals; Non-ferrous smelting industry; Road dust;

D O I：

10.13227/j.hjkx.201911084

中图分类号：

学科分类号：

摘要：

In order to explore the pollution characteristics and health risks of heavy metals in dust from roads around non-ferrous smelting activities in different regions, dust samples from urban roads, non-ferrous smelting industry park roads, and tunnel roads were collected from the Mengzi area of Yunnan Province. The dust samples were suspended on Teflon filters by re-suspension equipment to obtain PM2.5 and PM10 samples. Eight heavy metals (Cr, Mn, Ni, Cu, Zn, As, Cd, and Pb) were analyzed by ICP-MS. The results showed that the average content of the total heavy metals in PM2.5 was higher than that in PM10. The average contents of Pb, Cd, As, and Zn were highest in all three types of road dust, and the difference in the total average content in different types of road dust was ranked as: tunnel roads>non-ferrous smelting industrial park roads>urban roads. The average contents of Pb and As in PM2.5 from the tunnel road dust were higher than other heavy metals, and reached up to 92 338.3 mg•kg-1 and 12 457.7 mg•kg-1, respectively. The average contents of Pb and Zn in PM2.5from the industrial park road dust were the highest of all heavy metals (4 381. 7 mg•kg-1 and 4 685.0 mg•kg-1, respectively). The average content of Zn and Pb in PM2.5were the highest of all the heavy metals in the urban road dust (1 952.6 mg•kg-1 and 1 944.8 mg•kg-1, respectively). The average contents of Cu, Zn, As, Cd, and Pb in the different types of road dust were all higher than their background values in Yunnan Province. The results of the enrichment factor analysis and principal component analysis indicated that Cu, Zn, As, Cd, and Pb were obviously enriched in all three types of road dust, which were significantly affected by the non-ferrous smelting industry and traffic sources. In contrast, Cr, Mn, and Ni were not obviously enriched in the three types of road dust and were less affected by anthropogenic sources. The results of the health risk assessment testified that ingestion was the main exposure route, and that the children's non-carcinogenic risk was higher than that of adults. In PM2.5, As, Cd, and Pb in all types of road dust were associated with non-carcinogenic risks for adults and children. In PM10, As, Cd, and Pb in dust from the non-ferrous smelting industry park roads and tunnel roads had non-carcinogenic risks for humans. As in PM10 from the urban road dust was associated with a non-carcinogenic risk for children, whereas As in dust from the tunnel roads had carcinogenic risks. © 2020, Science Press. All right reserved.

引用

页码：3547 / 3555

页数：8

共 34 条

[1]

Hou S N, Zheng N, Tang L, Et al., Pollution characteristics, sources, and health risk assessment of human exposure to Cu, Zn, Cd and Pb pollution in urban street dust across China between 2009 and 2018, Environment International, 128, pp. 430-437, (2019)

[2]

Li H H, Chen L J, Yu L, Et al., Pollution characteristics and risk assessment of human exposure to oral bioaccessibility of heavy metals via urban street dusts from different functional areas in Chengdu, China, Science of the Total Environment, 586, pp. 1076-1084, (2017)

[3]

Cai K, Li C., Street dust heavy metal pollution source apportionment and sustainable management in a typical city-Shijiazhuang, China, International Journal of Environmental Research and Public Health, 16, 14, (2019)

[4]

Eqani S A M A S, Kanwal A, Bhowmik A K, Et al., Spatial distribution of dust-bound trace elements in Pakistan and their implications for human exposure, Environmental Pollution, 213, pp. 213-222, (2016)

[5]

Men C, Liu R M, Xu L B, Et al., Source-specific ecological risk analysis and critical source identification of heavy metals in road dust in Beijing, China, Journal of Hazardous Materials, 388, (2020)

[6]

Kim J A, Park J H, Hwang W J., Heavy metal distribution in street dust from traditional markets and the human health implications, International Journal of Environmental Research and Public Health, 13, 8, (2016)

[7]

Zheng L G, Tang Q, Fan J M, Et al., Distribution and health risk assessment of mercury in urban street dust from coal energy dominant Huainan city, China, Environmental Science and Pollution Research, 22, 12, pp. 9316-9322, (2015)

[8]

Rahman M S, Khan M D H, Jolly Y N, Et al., Assessing risk to human health for heavy metal contamination through street dust in the southeast Asian megacity: Dhaka, Bangladesh, Science of the Total Environment, 660, pp. 1610-1622, (2019)

[9]

Lin M N, Gui H R, Wang Y, Et al., Pollution characteristics, source apportionment, and health risk of heavy metals in street dust of Suzhou, China, Environmental Science and Pollution Research, 24, 2, pp. 1987-1998, (2017)

[10]

Zglobicki W, Telecka M, Skupinski S, Et al., Assessment of heavy metal contamination levels of street dust in the city of Lublin, E Poland, Environmental Earth Sciences, 77, 23, (2018)

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