气候变化领域集成服务门户(CCPortal): Characteristics and potential health risk of rural Tibetans' exposure to polycyclic aromatic hydrocarbons during summer period

CCPortal

DOI	10.1016/j.envint.2018.05.024
	Characteristics and potential health risk of rural Tibetans' exposure to polycyclic aromatic hydrocarbons during summer period
	Huang, Zhi-Yong; Wu, Chen-Chou; Bao, Lian-Jun; Wang, Xiao-Ping; Muir, Derek; Zeng, Eddy Y.
通讯作者	Zeng, EY (通讯作者)
发表日期	2018
ISSN	0160-4120
EISSN	1873-6750
起始页码	70
结束页码	77
卷号	118
英文摘要	Biomass fuels remain main energy sources in many remote rural regions, but potential health hazards from exposure to biomass combustion fumes have not been adequately assessed. Combustion of biomass fuels generates abundant polycyclic aromatic hydrocarbons (PAHs); hence residential exposure to PAHs can be used to evaluate the potential health risk to remote rural populations. The present study selected rural Tibetans to address the above-mentioned issue. Samples of indoor air and dust, human urine and local foods (Tsampa flour and buttered tea) were collected from five rural households in Langkazi County, an agricultural and pasturing region in Tibet of China in the summer season, which represented the best-case scenario as no heating was required. Residential exposure to PAHs by adults amounted to benzo[a] pyrene equivalent (BaPeq) dosages of 110-760, 1.2-50 and 0.5-23 ng d(-1) for ingestion, inhalation and dermal contact, respectively. Daily intakes of naphthalene, fluorene, phenanthrene and pyrene estimated from urinary monohydroxy PAH metabolites and from diet and inhalation exposure to PAHs were comparable (3.9, 1.9, 12 and 3.3 mu g d(-1) versus 9.5, 2.5, 5.1 and 1.1 mu g d(-1)), indicating the utility of external exposure in assessing daily intake of PAHs. The median incremental lifetime cancer risk was 32 x 10(-6) (95% confidence interval: 0.7-73 x 10(-6)) for ingestion and 2.4 x 10(-6) (95% confidence interval: 0.02-12 x 10(-6)) for inhalation and dermal contact combined, indicating moderate to slight potential cancer risk. Diet is the dominant source of health hazards for rural Tibetans, but cooking fumes also present a meaningful concern. The present study demonstrates that the pristine lifestyles of remote rural residents may be of global health concern, and merit further investigations.
关键词	INDOOR AIR-POLLUTION INHALATION EXPOSURE DIETARY EXPOSURE BIOMASS COOKING CANCER-RISK PAHS METABOLITES 1-HYDROXYPYRENE PARTICULATE POLLUTANTS
英文关键词	Biomass fuel; Rural Tibet; Polycyclic aromatic hydrocarbons; Health risk; Life style
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000438183000009
来源期刊	ENVIRONMENT INTERNATIONAL
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259171
推荐引用方式 GB/T 7714	Huang, Zhi-Yong,Wu, Chen-Chou,Bao, Lian-Jun,et al. Characteristics and potential health risk of rural Tibetans' exposure to polycyclic aromatic hydrocarbons during summer period[J]. 中国科学院青藏高原研究所,2018,118.
APA	Huang, Zhi-Yong,Wu, Chen-Chou,Bao, Lian-Jun,Wang, Xiao-Ping,Muir, Derek,&Zeng, Eddy Y..(2018).Characteristics and potential health risk of rural Tibetans' exposure to polycyclic aromatic hydrocarbons during summer period.ENVIRONMENT INTERNATIONAL,118.
MLA	Huang, Zhi-Yong,et al."Characteristics and potential health risk of rural Tibetans' exposure to polycyclic aromatic hydrocarbons during summer period".ENVIRONMENT INTERNATIONAL 118(2018).