Contamination and risk assessment (based on bioaccessibility via ingestion and inhalation) of metal(loid)s in outdoor and indoor particles from urban centers of Guangzhou, China

被引：146
|
作者：
Huang, Minjuan [1 ,2 ,3 ]
Wang, Wei [1 ,2 ]
Chan, Chuen Yu [3 ]
Cheung, Kwai Chung [1 ,2 ]
Man, Yu Bong [1 ,2 ,4 ]
Wang, Xuemei [3 ]
Wong, Ming Hung [1 ,2 ,4 ]
机构：
[1] Hong Kong Baptist Univ, Croucher Inst Environm Sci, Kowloon, Hong Kong, Peoples R China
[2] Hong Kong Baptist Univ, Dept Biol, Kowloon, Hong Kong, Peoples R China
[3] Sun Yat Sen Univ, Fac Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China
[4] Hong Kong Inst Educ, Dept Sci & Environm Studies, Tai Po, Hong Kong, Peoples R China
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 2014年 / 479卷
基金：
中国国家自然科学基金;
关键词：
Metal(loid)s; Oral bioaccessibility; Respiratory bioaccessibility; Daily intake; Risk assessment; AROMATIC-HYDROCARBONS PAHS; HEAVY-METAL CONTAMINATION; TRACE-METALS; STREET DUST; HOUSE-DUST; EXPOSURE; CADMIUM; SOILS; PM2.5; LEAD;
D O I：
10.1016/j.scitotenv.2014.01.115
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Road dust, household air-conditioning (AC) filter dust and PM2.5 were collected to investigate the contamination of metal(loid)s (Cr, Mn, Ni, Cu, Zn, As, Cd, Sn, Sb, Hg and Pb) in outdoor and indoor urban environments of Guangzhou. Zinc was found to be the most abundant element in road dust and household PM2.5, while the concentration of Pb was the highest in AC filter dust. Enrichment factor (EF) was used to assess the influence of human activity on the contamination of these metal(loid)s. Ingestion and inhalation were the two exposure pathways applied for risk assessment. Physiologically based extraction test (PBET) was used to estimate the oral bioaccessibilities of metal(loid)s in road dust and AC filter dust. Respiratory bioaccessible fraction of metal(loid)s via household PM2.5 was extracted with lung simulating solution. Household AC filter dust was more hazardous to human health than road dust, especially to children. Arsenic was found to be the most risky element based on the risk assessment. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：117 / 124
页数：8
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