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Isotopic signatures for natural versus anthropogenic Pb in high-altitude Mt. Everest ice cores during the past 800 years

Cited 22 time in scopus
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Title
Isotopic signatures for natural versus anthropogenic Pb in high-altitude Mt. Everest ice cores during the past 800 years
Other Titles
에베레스트 빙하코어에서의 지난 800년간의 납 동위원소의 자연적-인위적 특성
Authors
Lee, Khanghyun
Hong, Sung-Min
L.J. Burn-Nunes
K.J.R. Rosman
C.Boutron
C.Barbante
S.Hou
Hur, Soon Do
Subject
Environmental Sciences & Ecology
Keywords
Anthrogenic Pb contamination; Ice Cores; Leaded gasoline; Mt. Everest; Pb isotopes
Issue Date
2011
Publisher
Elsevier
Citation
Lee, Khanghyun, et al. 2011. "Isotopic signatures for natural versus anthropogenic Pb in high-altitude Mt. Everest ice cores during the past 800 years". SCIENCE OF THE TOTAL ENVIRONMENT, 412-413(1): 194-202.
Abstract
A long-term record, extending back 800 years (1205 to 2002 AD), of the Pb isotopic composition (206Pb/207Pb and 208Pb/207Pb) as well as Pb concentrations from high altitude Mt. Everest ice cores has the potential to identify sources and source regions affecting natural and anthropogenic Pb deposition in central Asia. The results show that the regional natural background Pb isotope signature (~1.20 for 206Pb/207Pb and ~2.50 for 208Pb/207Pb) in the central Himalayas was dominated by mineral dust over the last ~750 years from 1205 to 1960s,mostly originating from local sources with occasional contributions of long-range transported dust probably from Sahara desert and northwestern India. source regions affecting natural and anthropogenic Pb deposition in central Asia. The results show that the regional natural background Pb isotope signature (~1.20 for 206Pb/207Pb and ~2.50 for 208Pb/207Pb) in the central Himalayas was dominated by mineral dust over the last ~750 years from 1205 to 1960s,mostly originating from local sources with occasional contributions of long-range transported dust probably from Sahara desert and northwestern India.
URI
http://repository.kopri.re.kr/handle/201206/6308
DOI
http://dx.doi.org/10.1016/j.scitotenv.2011.10.002
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