气候变化领域集成服务门户(CCPortal): Northward Extent of Atmospheric Mercury Transboundary Transport to the Himalayas and Tibetan Plateau Region

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DOI	10.1029/2022GL100948
	Northward Extent of Atmospheric Mercury Transboundary Transport to the Himalayas and Tibetan Plateau Region
	Huang, Jie; Kang, Shichang; Feng, Xinbin; Tang, Wenjun; Ram, Kirpa; Guo, Junming; Zhang, Qianggong; Sharma, Chhatra Mani; Li, Chaoliu; Tripathee, Lekhendra; Wang, Feiyue
发表日期	2023
ISSN	0094-8276
EISSN	1944-8007
卷号	50 期号:4
英文摘要	Indian monsoon circulation is the primary driver of the long-range transboundary mercury (Hg) pollution from South Asia to the Himalayas and Tibet Plateau region, yet the northward extent of this transport remains unknown. In this study, a strong delta Hg-202 signature overlapping was found between Lake Gokyo and Indian anthropogenic sources, which is an indicative of the Hg source regions from South Asia. Most of the sediment samples were characterized with relatively large positive Delta Hg-199 values (mean = 0.07 parts per thousand-0.44 parts per thousand) and small positive Delta Hg-200 values (mean = 0.03 parts per thousand-0.08 parts per thousand). Notably, the Delta Hg-199 values in the lake sediments progressively increased from southwest to northeast. Moreover, the Delta Hg-199 values peaked at Lake Tanglha (mean = 0.44 parts per thousand +/- 0.04 parts per thousand) before decreased at Lake Qinghai that is under the influence of the westerlies. Our results suggest that transboundary atmospheric transport could transport Hg from South Asia northwards to at least the Tanglha Mountains in the northern Himalaya-Tibet.
关键词	Mercury isotope composition lake sediment transboundary pollution Himalayas and Tibetan Plateau region South Asia
英文关键词	MASS-INDEPENDENT FRACTIONATION; STABLE-ISOTOPE SIGNATURES; SEA-ICE COVER; WET DEPOSITION; EMISSIONS; PRECIPITATION; CITY; ACCUMULATION; SEDIMENTS; IMPACTS
WOS研究方向	Geosciences, Multidisciplinary
WOS记录号	WOS:000949589100001
来源期刊	GEOPHYSICAL RESEARCH LETTERS
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/283591
作者单位	Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Chinese Academy of Sciences; Guiyang Institute of Geochemistry, CAS; Banaras Hindu University (BHU); Tribhuvan University; University of Manitoba
推荐引用方式 GB/T 7714	Huang, Jie,Kang, Shichang,Feng, Xinbin,et al. Northward Extent of Atmospheric Mercury Transboundary Transport to the Himalayas and Tibetan Plateau Region[J]. 中国科学院青藏高原研究所,2023,50(4).
APA	Huang, Jie.,Kang, Shichang.,Feng, Xinbin.,Tang, Wenjun.,Ram, Kirpa.,...&Wang, Feiyue.(2023).Northward Extent of Atmospheric Mercury Transboundary Transport to the Himalayas and Tibetan Plateau Region.GEOPHYSICAL RESEARCH LETTERS,50(4).
MLA	Huang, Jie,et al."Northward Extent of Atmospheric Mercury Transboundary Transport to the Himalayas and Tibetan Plateau Region".GEOPHYSICAL RESEARCH LETTERS 50.4(2023).