气候变化领域集成服务门户(CCPortal): Tracing the Transboundary Transport of Mercury to the Tibetan Plateau Using Atmospheric Mercury Isotopes

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DOI	10.1021/acs.est.1c05816
	Tracing the Transboundary Transport of Mercury to the Tibetan Plateau Using Atmospheric Mercury Isotopes
	Yu, Ben; Yang, Lin; Liu, Hongwei; Xiao, Cailing; Bu, Duo; Zhang, Qiangying; Fu, Jianjie; Zhang, Qianggong; Cong, Zhiyuan; Liang, Yong; Hu, Ligang; Yin, Yongguang; Shi, Jianbo; Jiang, Guibin
通讯作者	Shi, JB (通讯作者)
发表日期	2022
ISSN	0013-936X
EISSN	1520-5851
起始页码	1568
结束页码	1577
卷号	56 期号:3
英文摘要	Deposition of atmospheric mercury (Hg) is the most important Hg source on the high-altitude Himalayas and Tibetan Plateau. Herein, total gaseous Hg (TGM) at an urban and a forest site on the Tibetan Plateau was collected respectively from May 2017 to October 2018, and isotopic compositions were measured to clarify the influences of landforms and monsoons on the transboundary transport of atmospheric Hg to the Tibetan Plateau. The transboundary transported anthropogenic emissions mainly originated over Indo-Gangetic Plain and carried over the Himalayas by convective storms and mid-tropospheric circulation, contributing over SO% to the TGM at the Lhasa urban site, based on the binary mixing model of isotopes. In contrast, during the transport of TGM from South Asia with low altitude, the uptake by evergreen forest in Yarlung Zangbo Grand Canyon largely decreased the TGM level and shifted isotopic compositions in TGM at the Nyingchi forest site, which are located at the high-altitude end of the canyon. Our results provided direct evidence from Hg isotopes to reveal the distinct patterns of transboundary transport to the Tibetan Plateau shaped by landforms and climates, which is critical to fully understand the biogeochemical cycling of Hg in the high-altitude regions.
关键词	GASEOUS ELEMENTAL MERCURY MASS-INDEPENDENT FRACTIONATION HIGH-PRECISION MEASUREMENT HG ISOTOPES VAPOR PRECIPITATION DEPOSITION PROTOCOL MOUNTAIN SAMPLES
英文关键词	mercury isotopes; convective storm; forest uptake; mid-tropospheric circulation; Tibetan plateau
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:000797926700011
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/260707
推荐引用方式 GB/T 7714	Yu, Ben,Yang, Lin,Liu, Hongwei,et al. Tracing the Transboundary Transport of Mercury to the Tibetan Plateau Using Atmospheric Mercury Isotopes[J]. 中国科学院青藏高原研究所,2022,56(3).
APA	Yu, Ben.,Yang, Lin.,Liu, Hongwei.,Xiao, Cailing.,Bu, Duo.,...&Jiang, Guibin.(2022).Tracing the Transboundary Transport of Mercury to the Tibetan Plateau Using Atmospheric Mercury Isotopes.ENVIRONMENTAL SCIENCE & TECHNOLOGY,56(3).
MLA	Yu, Ben,et al."Tracing the Transboundary Transport of Mercury to the Tibetan Plateau Using Atmospheric Mercury Isotopes".ENVIRONMENTAL SCIENCE & TECHNOLOGY 56.3(2022).