Cancer risk assessments of Hong Kong soils contaminated by polycyclic aromatic hydrocarbons

Yu Bon Man; Yuan Kang; Hong Sheng Wang; Winifred Lau; Hui Li; Xiao Lin Sun; John P. Giesy; Ka Lai CHOW; Ming Hung WONG

doi:10.1016/j.jhazmat.2012.11.067

Cancer risk assessments of Hong Kong soils contaminated by polycyclic aromatic hydrocarbons

Yu Bon Man, Yuan Kang, Hong Sheng Wang, Winifred Lau, Hui Li, Xiao Lin Sun, John P. Giesy, Ka Lai CHOW, Ming Hung WONG^*

^*Corresponding author for this work

Department of Geography

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

141 Citations (Scopus)

Abstract

The aim of this study was to evaluate soils from 12 different land use types on human cancer risks, with the main focus being on human cancer risks related to polycyclic aromatic hydrocarbons (PAHs). Fifty-five locations were selected to represent 12 different types of land use (electronic waste dismantling workshop (EW (DW)); open burning site (OBS); car dismantling workshop (CDW) etc.). The total concentrations of 16 PAHs in terms of total burden and their bioaccessibility were analysed using GC/MS. The PAHs concentrations were subsequently used to establish cancer risks in humans via three exposure pathways, namely, accident ingestion of soil, dermal contact soil and inhalation of soil particles. When the 95th centile values of total PAH concentrations were used to derive ingestion and dermal cancer risk probabilities on humans, the CDW land use type indicated a moderate potential for cancerous development (244×10^-6 and 209×10^-6, respectively). Bioaccessible PAHs content in soil samples from CDW (3.60×10^-6) were also classified as low cancer risk. CDW soil possessed a higher carcinogenic risk based on PAH concentrations. Bioremediation is recommended to treat the contaminated soil.

Original language	English
Pages (from-to)	770-776
Number of pages	7
Journal	Journal of Hazardous Materials
Volume	261
DOIs	https://doi.org/10.1016/j.jhazmat.2012.11.067
Publication status	Published - 5 Oct 2013

Scopus Subject Areas

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

User-Defined Keywords

Bioaccessible PAHs
Car dismantling workshop
Farm soil
Lifetime cancer risk
Open burning

UN SDGs

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

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10.1016/j.jhazmat.2012.11.067

Cite this

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title = "Cancer risk assessments of Hong Kong soils contaminated by polycyclic aromatic hydrocarbons",

abstract = "The aim of this study was to evaluate soils from 12 different land use types on human cancer risks, with the main focus being on human cancer risks related to polycyclic aromatic hydrocarbons (PAHs). Fifty-five locations were selected to represent 12 different types of land use (electronic waste dismantling workshop (EW (DW)); open burning site (OBS); car dismantling workshop (CDW) etc.). The total concentrations of 16 PAHs in terms of total burden and their bioaccessibility were analysed using GC/MS. The PAHs concentrations were subsequently used to establish cancer risks in humans via three exposure pathways, namely, accident ingestion of soil, dermal contact soil and inhalation of soil particles. When the 95th centile values of total PAH concentrations were used to derive ingestion and dermal cancer risk probabilities on humans, the CDW land use type indicated a moderate potential for cancerous development (244×10-6 and 209×10-6, respectively). Bioaccessible PAHs content in soil samples from CDW (3.60×10-6) were also classified as low cancer risk. CDW soil possessed a higher carcinogenic risk based on PAH concentrations. Bioremediation is recommended to treat the contaminated soil.",

keywords = "Bioaccessible PAHs, Car dismantling workshop, Farm soil, Lifetime cancer risk, Open burning",

author = "Man, {Yu Bon} and Yuan Kang and Wang, {Hong Sheng} and Winifred Lau and Hui Li and Sun, {Xiao Lin} and Giesy, {John P.} and CHOW, {Ka Lai} and WONG, {Ming Hung}",

note = "Funding Information: The authors would like to thank the Public Policy Research (2002-PPR-3) of the Research Grants Council of Hong Kong, the Seed Collaborative Research Fund from the State Key Laboratory in Marine Pollution (SCRF0003) and National Natural Science Foundation of China (NSFC)/Research Grants Council (RGC) Joint Research Scheme (N HKBU210/11) for financial support. ",

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doi = "10.1016/j.jhazmat.2012.11.067",

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T1 - Cancer risk assessments of Hong Kong soils contaminated by polycyclic aromatic hydrocarbons

AU - Man, Yu Bon

AU - Kang, Yuan

AU - Wang, Hong Sheng

AU - Lau, Winifred

AU - Li, Hui

AU - Sun, Xiao Lin

AU - Giesy, John P.

AU - CHOW, Ka Lai

AU - WONG, Ming Hung

N1 - Funding Information: The authors would like to thank the Public Policy Research (2002-PPR-3) of the Research Grants Council of Hong Kong, the Seed Collaborative Research Fund from the State Key Laboratory in Marine Pollution (SCRF0003) and National Natural Science Foundation of China (NSFC)/Research Grants Council (RGC) Joint Research Scheme (N HKBU210/11) for financial support.

PY - 2013/10/5

Y1 - 2013/10/5

N2 - The aim of this study was to evaluate soils from 12 different land use types on human cancer risks, with the main focus being on human cancer risks related to polycyclic aromatic hydrocarbons (PAHs). Fifty-five locations were selected to represent 12 different types of land use (electronic waste dismantling workshop (EW (DW)); open burning site (OBS); car dismantling workshop (CDW) etc.). The total concentrations of 16 PAHs in terms of total burden and their bioaccessibility were analysed using GC/MS. The PAHs concentrations were subsequently used to establish cancer risks in humans via three exposure pathways, namely, accident ingestion of soil, dermal contact soil and inhalation of soil particles. When the 95th centile values of total PAH concentrations were used to derive ingestion and dermal cancer risk probabilities on humans, the CDW land use type indicated a moderate potential for cancerous development (244×10-6 and 209×10-6, respectively). Bioaccessible PAHs content in soil samples from CDW (3.60×10-6) were also classified as low cancer risk. CDW soil possessed a higher carcinogenic risk based on PAH concentrations. Bioremediation is recommended to treat the contaminated soil.

AB - The aim of this study was to evaluate soils from 12 different land use types on human cancer risks, with the main focus being on human cancer risks related to polycyclic aromatic hydrocarbons (PAHs). Fifty-five locations were selected to represent 12 different types of land use (electronic waste dismantling workshop (EW (DW)); open burning site (OBS); car dismantling workshop (CDW) etc.). The total concentrations of 16 PAHs in terms of total burden and their bioaccessibility were analysed using GC/MS. The PAHs concentrations were subsequently used to establish cancer risks in humans via three exposure pathways, namely, accident ingestion of soil, dermal contact soil and inhalation of soil particles. When the 95th centile values of total PAH concentrations were used to derive ingestion and dermal cancer risk probabilities on humans, the CDW land use type indicated a moderate potential for cancerous development (244×10-6 and 209×10-6, respectively). Bioaccessible PAHs content in soil samples from CDW (3.60×10-6) were also classified as low cancer risk. CDW soil possessed a higher carcinogenic risk based on PAH concentrations. Bioremediation is recommended to treat the contaminated soil.

KW - Bioaccessible PAHs

KW - Car dismantling workshop

KW - Farm soil

KW - Lifetime cancer risk

KW - Open burning

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ER -

Cancer risk assessments of Hong Kong soils contaminated by polycyclic aromatic hydrocarbons

Abstract

Scopus Subject Areas

User-Defined Keywords

UN SDGs

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