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Anthropogenic lead in polar snow and ice archives.

Cited 11 time in wos
Cited 12 time in scopus
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Anthropogenic lead in polar snow and ice archives.
Other Titles
극지 빙하에 기록된 인위적 납 오염사
C.F. Boutron
K. Rosman
C. Ferrari
C. Barbante
Hong, Sung-Min
F. Adams
M. Bolshov
Environmental Sciences & Ecology; Physical Geography; Geology
Lead; pollution; snow and ice; speciation; trace analysis
Issue Date
C.F. Boutron, et al. 2004. "Anthropogenic lead in polar snow and ice archives.". COMPTES RENDUS GEOSCIENCE, 336(10): 847-867.
The investigation of the occurrence of lead in dated snow and ice from Greenland and Antarctica has played a major role in our understanding of the history of the pollution of the atmosphere of our planet by this metal. Such studies have however proved to be very demanding, mainly because of the extreme purity of polar snow and ice. Reliable measurements can be obtained only if ultra-clean and highly sensitive procedures are used, as pioneered by Clair Patterson. The Greenland data show evidence of large-scale pollution of the atmosphere of the Northern Hemisphere for lead as early as two millennia ago during Greco-Roman times, especially because of mining and smelting activities in southern Spain. It peaked at the end of the 1960s, with lead concentrations in snow about 200 times higher than natural values, before declining during recent times because of the fall in the use of leaded gasoline. Lead pollution in Antarctica was already significant at the end of the 19th century as a consequence of whaling activities, the traffic of coal-powered ships crossing the Cape Horn, and mining activities in South America, South Africa and Australia. After declining because of the opening of the Panama Canal, the great economic depression and World War II, it reached a maximum during the 1980s, with lead concentrations 20 times higher than natural values. Other studies focus on past natural variations of lead in ancient ice dated from the last climatic cycles. (C) 2004 Academie des sciences. Publie par Elsevier SAS. Tons droits reserves.
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