Children′s non-carcinogenic health risk assessment of heavy metals exposure to residential indoor dust around an e-waste dismantling area in South China
10.3760/cma.j.issn.0253-9624.2019.04.006
- VernacularTitle: 华南某电子垃圾拆解区周边住宅室内灰尘重金属对儿童的非致癌健康风险评估
- Author:
Xichao CHEN
1
;
Xiaohui ZHU
;
Bigui LIN
;
Liangzhong LI
;
Ziling YU
;
Mingdeng XIANG
;
Yunjiang YU
Author Information
1. State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Science, Guangzhou 510655, China
- Publication Type:Journal Article
- Keywords:
Air pollution, indoor;
Metals, heavy;
Risk assessment;
Target-organ toxicity dose;
Binary weight-of-evidence analysis
- From:
Chinese Journal of Preventive Medicine
2019;53(4):360-364
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the non-carcinogenic health risk of heavy metals (As, Cd, Cr, Cu, Mn, Pb and Zn) in residential indoor dust for young children around an e-waste dismantling area in South China.
Methods:A village around an e-waste dismantling area in South China was selected as a research site in October 2016. Convenience sampling method was used to select 36 houses in the village and 36 dust samples were collected by vacuum cleaner. The concentrations of heavy metals (Cd, Cr, Cu, Mn, Pb and Zn) in each sample were determined and expressed by the average value. Non-carcinogenic health risk assessment was conducted using the US Environmental Protection Agency (EPA) Health Risk Assessment (HRA) model, the American Toxicology and Disease Registry (ATSDR) Target-organ Toxicity Dose (TTD) approach and the ATSDR Binary Weight-of-Evidence (BINWOE) model.
Results:The mean ± SD of concentrations of As, Cd, Cr, Cu, Mn, Pb and Zn were (48.90±33.91), (5.95±3.89), (173.57±580.37), (412.71±1 190.00), (612.82±540.70), (297.41±293.22) and (1 052.81±1 156.48) mg/kg, respectively. The HI value of TTD (2.670) and BINWOE (2.933) were higher than the safety threshold of EPA recommended non-carcinogenic health risk. The HI value of TTD and BINWOE were 1.93 and 2.12 times higher than the HI value of HRA (1.386).
Conclusion:There was non-carcinogenic health risk of heavy metals (As, Cd, Cr, Cu, Mn, Pb and Zn) via residential indoor dust around the e-waste dismantling area for local children.
