KOPRI Repository

Pb concentrations and isotopic record preserved in northwest Greenland snow

Cited 0 time in scopus
Metadata Downloads
Title
Pb concentrations and isotopic record preserved in northwest Greenland snow
Other Titles
북서 그린랜드 눈에 나타난 납 농도와 납안정동위원소 비의 기록
Authors
Kang, Jung-Ho
Hong, Sung-Min
Kim, Seong-Joong
Hur, Soon Do
Han, Changhee
Hwang, Heejin
Subject
Environmental Sciences & Ecology
Issue Date
2017
Citation
Kang, Jung-Ho, et al. 2017. "Pb concentrations and isotopic record preserved in northwest Greenland snow". CHEMOSPHERE, 187(1): 294-301.
Abstract
We present high-resolution lead (Pb) concentrations and isotopic ratios from a northwest Greenland snow pit covering a six-year period between 2003 and 2009. Pb concentrations ranged widely from 2.7 pg g?1 to 97.3 pg g?1, with a mean concentration of 21.6 pg g?1. These values are higher than those recorded for the pre-industrial period. Pb concentrations exhibit seasonal spikes in winter?spring layers. Crustal Pb enrichment factors (EF) suggest that the northwest Greenland snow pit is highly enriched with Pb of predominantly anthropogenic origin. The 206Pb/207Pb ratios ranged from 1.144 to 1.169 with a mean value of 1.156, which fall between less radiogenic Eurasian-type and more radiogenic Canadian-type signatures. This result suggests that several potential source areas of Pb impact on northwest Greenland. Abrupt changes in Pb concentrations and Pb isotope ratios were observed and related to seasonal shifts in source regions of aerosol transport. The 206Pb/207Pb isotope ratio increased steadily between 2003 and 2009. The similarity in isotope ratios between some of our samples and Chinese urban aerosols suggests a steadily increasing contribution of Chinese Pb to northwest Greenland snow.
URI
http://repository.kopri.re.kr/handle/201206/6053
DOI
http://dx.doi.org/10.1016/j.chemosphere.2017.08.101
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