气候变化领域集成服务门户(CCPortal): Concentration level and distribution of polycyclic aromatic hydrocarbons in soil and grass around Mt. Qomolangma, China

CCPortal

DOI	10.1007/s11434-007-0184-2
	Concentration level and distribution of polycyclic aromatic hydrocarbons in soil and grass around Mt. Qomolangma, China
	Wang XiaoPing; Yao TanDong; Cong ZhiYuan; Yan XinLiang; Kang ShiChang; Zhang Yong
发表日期	2007
ISSN	1001-6538
EISSN	1861-9541
起始页码	1405
结束页码	1413
卷号	52 期号:10
英文摘要	High mountains may serve as a condenser for persistent organic pollutants. In the present study, soil and grass samples from Mt. Qomolangma region, China were collected from 4600 to 5620 m a.s.l and were analyzed for polycyclic aromatic hydrocarbons (PAHs) to determine if they are concentrated at colder, more elevated sites and to evaluate their possible resources and fractionation. The total PAHs concentration in soil samples was < 600 ng g(-1), the critical value to differentiate PAHs levels in remote and urban regions. This implied the PAHs levels at Mt. Qomolangma are relatively low and what one might expect in such a remote region of the world. These low values may represent a soil background for mid-latitude Northern Hemisphere soils away from the direct influence of an anthropogenic source. As for the distribution pattern, the low molecular weight PAHs were prone to accumulate at higher altitude, while the high molecular weight PAHs inversely related or unrelated with elevation. Based on high concentration of phenanthrene at elevated sample site and the ratios of individual PAHs, we deduced that home-heating combustion and vehicle emission may result in the constitution trait of PAHs in this mountain region. Monsoon traveling over India, Pakistan and other countries with dense population may carry contaminant to Mt. Qomolangma region.
关键词	PERSISTENT ORGANIC POLLUTANTS ORGANOCHLORINE PESTICIDES WESTERN CANADA TRANSPORT AIR CONTAMINANTS MOUNTAINS FRACTIONATION ANTARCTICA HIMALAYAS
英文关键词	Mt. Qomolangma; PAHs; long-range transport
学科领域	Science & Technology - Other Topics
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000247546100015
来源期刊	CHINESE SCIENCE BULLETIN
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/111485
推荐引用方式 GB/T 7714	Wang XiaoPing,Yao TanDong,Cong ZhiYuan,et al. Concentration level and distribution of polycyclic aromatic hydrocarbons in soil and grass around Mt. Qomolangma, China[J]. 中国科学院青藏高原研究所,2007,52(10).
APA	Wang XiaoPing,Yao TanDong,Cong ZhiYuan,Yan XinLiang,Kang ShiChang,&Zhang Yong.(2007).Concentration level and distribution of polycyclic aromatic hydrocarbons in soil and grass around Mt. Qomolangma, China.CHINESE SCIENCE BULLETIN,52(10).
MLA	Wang XiaoPing,et al."Concentration level and distribution of polycyclic aromatic hydrocarbons in soil and grass around Mt. Qomolangma, China".CHINESE SCIENCE BULLETIN 52.10(2007).