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南极乔治王岛 Admiralty 湾沉积物剖面中的砷和痕量金属含量。

Arsenic and trace metal contents in sediment profiles from the Admiralty Bay, King George Island, Antarctica.

机构信息

Instituto Oceanográfico da Universidade de São Paulo, Praça do Oceanográfico, 191, 05508-120 São Paulo - SP, Brazil.

出版信息

Mar Pollut Bull. 2011 Jan;62(1):192-6. doi: 10.1016/j.marpolbul.2010.10.014. Epub 2010 Nov 18.

DOI:10.1016/j.marpolbul.2010.10.014
PMID:21092998
Abstract

Admiralty Bay (Antarctica) hosts three scientific stations (Ferraz, Arctowski and Macchu Picchu), which require the use of fossil fuel as an energy source. Fossil fuels are also considered the main source of pollution in the area, representing important inputs of major pollutants (organic compounds) and trace metals and metalloids of environmental interest. Accordingly, this work presents the results of As, Cd, Cr, Cu, Ni, Pb and Zn in sediment profiles from Admiralty Bay. The sediment results from Ferraz station were slightly higher than the other sampling sites. The highest contents were observed for Cu and Zn (from 44 to 89 mg kg(-1)). Otherwise, by using enrichment factors and geochronology analysis, the most relevant enrichment was observed for As in the samples collected close to the Ferraz station, indicating that increasing As content may be associated with the activities associated with this site.

摘要

阿德默勒尔蒂湾(南极洲)拥有三个科学站(费拉兹、阿特沃斯基和马丘比丘),这些科学站需要使用化石燃料作为能源。化石燃料也被认为是该地区污染的主要来源,它们代表着主要污染物(有机化合物)和痕量金属和类金属的重要输入,这些物质对环境具有重要影响。因此,本工作介绍了来自阿德默勒尔蒂湾沉积物剖面的 As、Cd、Cr、Cu、Ni、Pb 和 Zn 的结果。费拉兹站的沉积物结果略高于其他采样点。Cu 和 Zn 的含量最高(44 至 89mgkg(-1))。此外,通过使用富集因子和地球年代学分析,在靠近费拉兹站采集的样品中观察到了最相关的 As 富集,这表明 As 含量的增加可能与该站点的相关活动有关。

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