气候变化领域集成服务门户(CCPortal): Historical Reconstruction of Mercury Pollution Across the Tibetan Plateau Using Lake Sediments

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DOI	10.1021/es9030408
	Historical Reconstruction of Mercury Pollution Across the Tibetan Plateau Using Lake Sediments
	Yang, Handong; Battarbee, Richard W.; Turner, Simon D.; Rose, Neil L.; Derwent, Richard G.; Wu, Guangjian; Yang, Ruiqiang
通讯作者	Yang, HD (通讯作者)
发表日期	2010
ISSN	0013-936X
EISSN	1520-5851
起始页码	2918
结束页码	2924
卷号	44 期号:8
英文摘要	The Tibetan Plateau is described as the Roof of the World averaging over 4000 m above sea level; it is remote, isolated, and presumed to be a pristine region. In order to study the history of atmospheric mercury (Hg) pollution and its spatial variation across the Plateau, lakes were chosen from three areas forming a north to south transect Sediment cores were taken from three sites in each area and dated using the radionuclides Pb-210 and Cs-137. Analysis of the cores yielded the first comprehensive Hg reconstructions for the Plateau, showing clear Hg pollution at all sites. The first indication of Hg pollution is much earlier than the onset of the industrial revolution in Europe, but the most significant pollution increase is from the 1970s, followed by a further marked increase from the 1990s. The mean post-2000 atmospheric pollution Hg accumulation rates for the sampling sites were estimated at between 5.1 and 7.9 mu g m(-2) yr(-1). The increase in Hg pollution over the last few decades is synchronous with the recent economic development in Asia (especially China and India), and pollution Hg levels continue to increase. Furthermore, contemporary sediment Hg accumulation rate data are in broad agreement with Hg deposition values derived from global models that attribute pollution to sources mainly within southeast Asia. As most of the sites are exceptionally remote and situated above the atmospheric boundary layer, these results underline the need to understand the local Hg cycle in both regional and global context.
关键词	GASEOUS MERCURY ATMOSPHERIC DEPOSITION TROPOSPHERIC OZONE EMISSION ACCUMULATION TRANSPORT AIR CHEMISTRY RATES SNOW
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000276556000029
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
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/257779
推荐引用方式 GB/T 7714	Yang, Handong,Battarbee, Richard W.,Turner, Simon D.,et al. Historical Reconstruction of Mercury Pollution Across the Tibetan Plateau Using Lake Sediments[J]. 中国科学院青藏高原研究所,2010,44(8).
APA	Yang, Handong.,Battarbee, Richard W..,Turner, Simon D..,Rose, Neil L..,Derwent, Richard G..,...&Yang, Ruiqiang.(2010).Historical Reconstruction of Mercury Pollution Across the Tibetan Plateau Using Lake Sediments.ENVIRONMENTAL SCIENCE & TECHNOLOGY,44(8).
MLA	Yang, Handong,et al."Historical Reconstruction of Mercury Pollution Across the Tibetan Plateau Using Lake Sediments".ENVIRONMENTAL SCIENCE & TECHNOLOGY 44.8(2010).