Baseline values for metals in soils on Fildes Peninsula, King George Island, Antarctica: the extent of anthropogenic pollution

被引：0
作者：
Zhibo Lu
Minghong Cai
Juan Wang
Haizhen Yang
Jianfeng He
机构：
[1] Tongji University,College of Environmental Science and Engineering
[2] Polar Research Institute of China,SOA Key Laboratory for Polar Science
来源：
Environmental Monitoring and Assessment | 2012年 / 184卷
关键词：
Baseline metal values; Anthropogenic metal contamination; Soil; Antarctica;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Metal contents (Al, Ca, Cd, Cr, Cu, Fe, Hg, Mg, Mn, Ni, Pb, Ti, and Zn) have been measured in 30 surface soils on Fildes Peninsula, King George Island, Antarctica, yielding values (in milligrams kilogram−1) of 41.57–80.65 (Zn), 2.76–60.52 (Pb), 0.04–0.34 (Cd), 7.18–25.03 (Ni), 43,255–70,534 (Fe), 449–1,401 (Mn), 17.10–64.90 (Cr), 1,440–25,684 (Mg), 10,941–49,354 (Ca), 51.10–176.50 (Cu), 4,388–12,707 (Ti), 28,038–83,849 (Al), and for Hg (in nanograms gram−1) 0.01–0.06. Relative cumulative frequency analysis was used to determine the baseline values for the 13 metals. Compared with adjacent areas in Antarctica, Mg and Ni are significantly lower, but Cu is significantly higher than that of McMurdo Station. Enrichment factor analysis and the geo-accumulation index method were applied in order to determine the extent of anthropogenic contamination, and both show that Pb, Cd, and Hg have been significantly increased by human activities. Principal component analysis was used to identify the sources of metals in these soil samples.
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页码：7013 / 7021
页数：8
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