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An 800-year record of atmospheric As, Mo, Sn, and Sb in central Asia in high-altitude ice cores from Mt. Qomolangma (Everest), Himalayas

Cited 52 time in scopus
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Title
An 800-year record of atmospheric As, Mo, Sn, and Sb in central Asia in high-altitude ice cores from Mt. Qomolangma (Everest), Himalayas
Other Titles
에베레스트 빙하코어를 이용한 과거 800년 동안의 대기 As, Mo, Sn, Sb 변화 기록
Authors
S. Hou
K.J.R. Rosman
Hong, Sung-Min
C. Barbante
Lee, Khanghyun
C.F. Boutron
L.J. Burn
J. Ren
Hur, Soon Do
Subject
Engineering; Environmental Sciences & Ecology
Keywords
Atmospheric pollution; Human activity; Ice core; Mt. Everest; Trace element
Issue Date
2009
Publisher
American chemical Society
Citation
S. Hou, et al. 2009. "An 800-year record of atmospheric As, Mo, Sn, and Sb in central Asia in high-altitude ice cores from Mt. Qomolangma (Everest), Himalayas". Environmental Science & Technology, 43(21): 8060-8065.
Abstract
As, Mo, Sn, and Sb have been determined by inductively coupled plasma sector field mass spectrometry (ICP-SFMS) in 143 depth intervals of high-altitude ice cores from Mt. Everest, covering an 800-year time period from 1205 to 2002 AD. The results clearly demonstrate the long-term historical record of atmospheric transport and deposition of As, Mo, Sn, and Sb that has prevailed at high altitudes in the central Himalayas. Natural contributions, mainly from mineral dust, have dominated the atmospheric cycles of As, Mo, Sn, and to some extent Sb during the 700 years prior to the 20th century. Compared to those of the pre-1900 period, pronounced increases of both concentrations and crustal enrichment factors are observed since the 1970s, with the highest increase factor for Sn and the least for As. Such increases are attributed to anthropogenic emissions of these elements, largely from stationary fossil fuel combustion and non-ferrous metals production, particularly in India. Our central Himalayan ice core record provides an explicit recognition of rising atmospheric As, Mo, Sn, and Sb pollution in response to rapid economic growth in central Asia.
URI
http://repository.kopri.re.kr/handle/201206/6334
DOI
http://dx.doi.org/10.1021/es901685u
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