KOPRI Repository

Evidence of Global-Scale As, Mo, Sb, and Tl Atmospheric Pollution in the Antarctic Snow

Cited 24 time in scopus
Metadata Downloads
Title
Evidence of Global-Scale As, Mo, Sb, and Tl Atmospheric Pollution in the Antarctic Snow
Other Titles
남극 눈을 이용한 대기 As, Mo, Sb, Tl 오염 평가 연구
Authors
Tseren-Ochir, Soyol-Erdene
Hidaeki Motoyama
Hong, Sang-Bum
Hwang, Heejin
Hong, Sung-Min
Hur, Soon Do
Subject
Engineering; Environmental Sciences & Ecology
Keywords
Antarctica; pollution; trace elements
Issue Date
2012
Publisher
American Chemical Society
Citation
Tseren-Ochir, Soyol-Erdene, et al. 2012. "Evidence of Global-Scale As, Mo, Sb, and Tl Atmospheric Pollution in the Antarctic Snow". ENVIRONMENTAL SCIENCE & TECHNOLOGY, 46(21): 11550-11557.
Abstract
We report the first comprehensive and reliable time series for As, Mo, Sb, and Tl in the snowpack from Dome Fuji in the central East Antarctic Plateau. Our results show significant enrichment of these elements due to either anthropogenic activities or large volcanic eruptions during the past 50 years. With respect to the values reported from 1960 to 1964, we observed the maximum increases in crustal enrichment factors (EFs) for As (a factor of ∼15), Mo (∼4), Sb (∼4), and Tl (∼2) during the period between the 1970s and 1990s, reflecting the global dispersion of anthropogenic pollutants of these elements, even to the most remote areas on Earth. Such enrichments are likely related to emissions of trace elements from nonferrous metal smelting and fossil fuel combustion processes in South America, especially in Chile. A drastic decrease in the As concentration and its EF values was observed after the year 2000 in response to the introduction of environmental regulations in the 1990s to reduce As emissions from the copper industry, primarily in Chile. The observed decrease suggests that governmental regulations for pollution control are effective in reducing air pollution at both the regional and global level.c activities or large volcanic eruptions during the past 50 years. With respect to the values reported from 1960 to 1964, we observed the maximum increases in crustal enrichment factors (EFs) for As (a factor of ∼15), Mo (∼4), Sb (∼4), and Tl (∼2) during the period between the 1970s and 1990s, reflecting the global dispersion of anthropogenic pollutants of these elements, even to the most remote areas on Earth. Such enrichments are likely related to emissions of trace elements from nonferrous metal smelting and fossil fuel combustionprocesses in South America, especially in Chile. A drastic decrease in the As concentration and its EF values was observed after the year 2000 in response to the introduction of environmental
URI
http://repository.kopri.re.kr/handle/201206/6026
DOI
http://dx.doi.org/10.1021/es303086c
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse