Quantitative source tracking of heavy metals contained in urban road deposited sediments

Nian Hong; Yingjie Guan; Bo Yang; Jie Zhong; Panfeng Zhu; Yong Sik Ok; Deyi Hou; Daniel C.W. Tsang; Yuntao Guan; An Liu

doi:10.1016/j.jhazmat.2020.122362

Quantitative source tracking of heavy metals contained in urban road deposited sediments

Nian Hong, Yingjie Guan, Bo Yang, Jie Zhong, Panfeng Zhu, Yong Sik Ok, Deyi Hou, Daniel C.W. Tsang, Yuntao Guan, An Liu

Research output: Contribution to journal › Article › peer-review

69 Citations (Scopus)

Abstract

Source tracking for heavy metals contained in road deposited sediments (RDS) is essential for pollution control and human health risk management. Previous studies on tracking sources for heavy metals have mostly been qualitative or semi-quantitative. This study quantitatively assessed the relative contributions of eight sources to five typical heavy metals in the urban environment using a chemical mass-balance based stochastic method. The results indicated that tire wear contributed the most masses to RDS (33 ± 26 %) while brake lining dusts contributed the least. Urban soil, tire wear, and brake lining dusts contributed the most to Pb (41 ± 32 %), Zn (28 ± 25 %), and Cu (59 ± 30 %), respectively, while gasoline engine exhaust was the main source of both Cr (29 ± 28 %) and Ni (20 ± 23 %). The outcomes also showed that tire wear and diesel engine exhaust have higher potential to threaten human health risk because they generate high amounts of heavy metals with high bioaccessibility. The research results can also provide a quantitative guidance for taking remediation actions of heavy metal control on urban road surfaces and measuring the effectiveness of those actions.

Original language	English
Article number	122362
Journal	Journal of hazardous materials
Volume	393
DOIs	https://doi.org/10.1016/j.jhazmat.2020.122362
Publication status	Published - 2020 Jul 5

Bibliographical note

Funding Information:
We thank Key-Area Research and Development Program of Guangdong Province (2019B110205003), National Natural Science Foundation of China (21806110), Guangdong Basic and Applied Basic Research Foundation (2019A1515010843) and the Development and Reform Commission of Shenzhen Municipality (urban water recycling and environment safety program) to support this research study.

Funding Information:
We thank Key-Area Research and Development Program of Guangdong Province ( 2019B110205003 ), National Natural Science Foundation of China ( 21806110 ), Guangdong Basic and Applied Basic Research Foundation ( 2019A1515010843 ) and the Development and Reform Commission of Shenzhen Municipality (urban water recycling and environment safety program) to support this research study.

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

Environmental pollution
Human health risk
Metals bioaccessibility
Source apportionment
Sustainable development

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jhazmat.2020.122362

Cite this

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title = "Quantitative source tracking of heavy metals contained in urban road deposited sediments",

abstract = "Source tracking for heavy metals contained in road deposited sediments (RDS) is essential for pollution control and human health risk management. Previous studies on tracking sources for heavy metals have mostly been qualitative or semi-quantitative. This study quantitatively assessed the relative contributions of eight sources to five typical heavy metals in the urban environment using a chemical mass-balance based stochastic method. The results indicated that tire wear contributed the most masses to RDS (33 ± 26 %) while brake lining dusts contributed the least. Urban soil, tire wear, and brake lining dusts contributed the most to Pb (41 ± 32 %), Zn (28 ± 25 %), and Cu (59 ± 30 %), respectively, while gasoline engine exhaust was the main source of both Cr (29 ± 28 %) and Ni (20 ± 23 %). The outcomes also showed that tire wear and diesel engine exhaust have higher potential to threaten human health risk because they generate high amounts of heavy metals with high bioaccessibility. The research results can also provide a quantitative guidance for taking remediation actions of heavy metal control on urban road surfaces and measuring the effectiveness of those actions.",

keywords = "Environmental pollution, Human health risk, Metals bioaccessibility, Source apportionment, Sustainable development",

author = "Nian Hong and Yingjie Guan and Bo Yang and Jie Zhong and Panfeng Zhu and Ok, {Yong Sik} and Deyi Hou and Tsang, {Daniel C.W.} and Yuntao Guan and An Liu",

note = "Funding Information: We thank Key-Area Research and Development Program of Guangdong Province (2019B110205003), National Natural Science Foundation of China (21806110), Guangdong Basic and Applied Basic Research Foundation (2019A1515010843) and the Development and Reform Commission of Shenzhen Municipality (urban water recycling and environment safety program) to support this research study. Funding Information: We thank Key-Area Research and Development Program of Guangdong Province ( 2019B110205003 ), National Natural Science Foundation of China ( 21806110 ), Guangdong Basic and Applied Basic Research Foundation ( 2019A1515010843 ) and the Development and Reform Commission of Shenzhen Municipality (urban water recycling and environment safety program) to support this research study. Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

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doi = "10.1016/j.jhazmat.2020.122362",

language = "English",

volume = "393",

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T1 - Quantitative source tracking of heavy metals contained in urban road deposited sediments

AU - Hong, Nian

AU - Guan, Yingjie

AU - Yang, Bo

AU - Zhong, Jie

AU - Zhu, Panfeng

AU - Ok, Yong Sik

AU - Hou, Deyi

AU - Tsang, Daniel C.W.

AU - Guan, Yuntao

AU - Liu, An

N1 - Funding Information: We thank Key-Area Research and Development Program of Guangdong Province (2019B110205003), National Natural Science Foundation of China (21806110), Guangdong Basic and Applied Basic Research Foundation (2019A1515010843) and the Development and Reform Commission of Shenzhen Municipality (urban water recycling and environment safety program) to support this research study. Funding Information: We thank Key-Area Research and Development Program of Guangdong Province ( 2019B110205003 ), National Natural Science Foundation of China ( 21806110 ), Guangdong Basic and Applied Basic Research Foundation ( 2019A1515010843 ) and the Development and Reform Commission of Shenzhen Municipality (urban water recycling and environment safety program) to support this research study. Publisher Copyright: © 2020 Elsevier B.V.

PY - 2020/7/5

Y1 - 2020/7/5

N2 - Source tracking for heavy metals contained in road deposited sediments (RDS) is essential for pollution control and human health risk management. Previous studies on tracking sources for heavy metals have mostly been qualitative or semi-quantitative. This study quantitatively assessed the relative contributions of eight sources to five typical heavy metals in the urban environment using a chemical mass-balance based stochastic method. The results indicated that tire wear contributed the most masses to RDS (33 ± 26 %) while brake lining dusts contributed the least. Urban soil, tire wear, and brake lining dusts contributed the most to Pb (41 ± 32 %), Zn (28 ± 25 %), and Cu (59 ± 30 %), respectively, while gasoline engine exhaust was the main source of both Cr (29 ± 28 %) and Ni (20 ± 23 %). The outcomes also showed that tire wear and diesel engine exhaust have higher potential to threaten human health risk because they generate high amounts of heavy metals with high bioaccessibility. The research results can also provide a quantitative guidance for taking remediation actions of heavy metal control on urban road surfaces and measuring the effectiveness of those actions.

AB - Source tracking for heavy metals contained in road deposited sediments (RDS) is essential for pollution control and human health risk management. Previous studies on tracking sources for heavy metals have mostly been qualitative or semi-quantitative. This study quantitatively assessed the relative contributions of eight sources to five typical heavy metals in the urban environment using a chemical mass-balance based stochastic method. The results indicated that tire wear contributed the most masses to RDS (33 ± 26 %) while brake lining dusts contributed the least. Urban soil, tire wear, and brake lining dusts contributed the most to Pb (41 ± 32 %), Zn (28 ± 25 %), and Cu (59 ± 30 %), respectively, while gasoline engine exhaust was the main source of both Cr (29 ± 28 %) and Ni (20 ± 23 %). The outcomes also showed that tire wear and diesel engine exhaust have higher potential to threaten human health risk because they generate high amounts of heavy metals with high bioaccessibility. The research results can also provide a quantitative guidance for taking remediation actions of heavy metal control on urban road surfaces and measuring the effectiveness of those actions.

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Quantitative source tracking of heavy metals contained in urban road deposited sediments

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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