Cancer risk assessment of polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in former agricultural soils of Hong Kong

被引:55
作者
Man, Yu Bon [1 ,2 ,3 ]
Lopez, Brenda Natalia [1 ,2 ]
Wang, Hong Sheng [1 ,2 ,3 ]
Leung, Anna Oi Wah [1 ,2 ]
Chow, Ka Lai [1 ,2 ,3 ]
Wong, Ming H. [1 ,2 ,3 ]
机构
[1] Hong Kong Baptist Univ, Croucher Inst Environm Sci, Hong Kong, Hong Kong, Peoples R China
[2] Hong Kong Baptist Univ, Dept Biol, Hong Kong, Hong Kong, Peoples R China
[3] Zhejiang Agr & Forestry Univ, Sch Environm & Resource Sci, Lin An 311300, Zhejiang, Peoples R China
关键词
Land use change; Farm soils; Lifetime cancer risk; PBDEs; PCBs; WASTE RECYCLING SITE; DIBENZO-P-DIOXINS; FLAME RETARDANTS; BREAST-MILK; HYDROCARBONS; PERSPECTIVE; POLLUTANTS; PULMONARY; POLLUTION; SEDIMENT;
D O I
10.1016/j.jhazmat.2011.08.010
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The major objective of this study was to evaluate the carcinogenic risk posed to humans through PBDEs and PCBs of changing agricultural land use for recycling of e-waste and open burning of municipal waste. Nine locations were selected to represent 6 different types of land use such as e-waste dismantling workshop (EW (DW)) and e-waste open burning site (EW (OBS)). The total concentrations for PBDEs and PCBs, and the bioaccessibility of PCBs were determined using Soxhlet extraction and in vitro simulated gastric solution, respectively. Both total and bioaccessible concentrations were subsequently used to establish the cancer risk probabilities in humans via ingestion, dermal contact and inhalation of soil particles. It was found that very low cancer risk in all 6 types of different land use was caused by BDE-209. Nevertheless, at the 95th centile, the concentration of PCBs in EW (DW) and EW (OBS) indicate a low cancer risk to humans of 40 and 2.1 in a million, respectively, while the same was also observed for the bioaccessible PCBs in EW (DW) of 1.71 +/- 2.96 in a million. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:92 / 99
页数:8
相关论文
共 63 条
[1]  
Allen S., 1989, CHEM ANAL ECOLOGICAL
[2]  
[Anonymous], 2007, EPA METHOD 1614
[3]  
[Anonymous], 9355 US EPA OSWER
[4]  
[Anonymous], 1997, EPA600P95002F
[5]  
ATSDR (Agency for toxic substances and disease registry), 2002, TOX PROF POL DIPH PO
[6]  
ATSDR (Agency for toxic substances and disease registry), 2004, POL DIPH ETH AG TOX
[7]  
ATSDR (New York State Department of Health under cooperative agreement with the Agency for Toxic Substances and Disease Registry) Public Health Assessment, 1995, NYD980506927 ATSDR C
[8]   Brominated flame retardants: Cause for concern? [J].
Birnbaum, LS ;
Staskal, DF .
ENVIRONMENTAL HEALTH PERSPECTIVES, 2004, 112 (01) :9-17
[9]   Levels of polybrominated diphenyl ether (PBDE) flame retardants in animals representing different trophic levels of the North Sea food web [J].
Boon, JP ;
Lewis, WE ;
Tjoen-A-Choy, MR ;
Allchin, CR ;
Law, RJ ;
de Boer, J ;
ten Hallers-Tjabbes, CC ;
Zegers, BN .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2002, 36 (19) :4025-4032
[10]   RESIDUAL PETROLEUM AND POLYCHLOROBIPHENYL OILS AS SORPTIVE PHASES FOR ORGANIC CONTAMINANTS IN SOILS [J].
BOYD, SA ;
SUN, S .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1990, 24 (01) :142-144