Soil Cd, Cu, Pb and Zn contaminants around Mount Isa city, Queensland, Australia: Potential sources and risks to human health
Soil Cd, Cu, Pb and Zn contaminants around Mount Isa city, Queensland, Australia: Potential sources and risks to human health
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DOI：
10.1016/j.apgeochem.2010.03.003
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发表时间：
2010-06-01
影响因子：
3.4
通讯作者：
Holz, Elmar
中科院分区：
文献类型：
--
作者：
Taylor, Mark P.;Mackay, Alana K.;Holz, Elmar
本文研究了澳大利亚昆士兰州伊萨山铅锌银矿和铜矿区土壤Cd、Cu、Pb和Zn污染与矿区位置和活动的关系。分析的数据主要集中在土壤铅的分布和浓度，因为它们对儿童的健康的潜在影响。Xstrata伊萨山矿区（XMIM）是澳大利亚众多污染物（包括铜和铅）的主要排放地，与采矿相关的活动与2008年的一项研究结果有因果关系，该研究显示，11.3%的当地儿童（12-60个月）血液铅含量>10微克/分升。昆士兰州政府当局和Xstrata伊萨山矿业有限公司认为，伊萨山周围环境系统中的污染物主要是近地表矿化的结果。利用地表和地下土壤化学数据、采矿和冶炼作业产生的金属污染物的大气模型以及当地地质和相关地球化学研究，调查了污染是否来自XMIM或其他可能来源的证据，例如富矿基岩的自然风化。从伊萨山的住宅、公园和学校附近采集了60个表层土壤样品，分析了180 μ m（粗）和180 μ m（粗）土壤中Cd、Cu、Pb和Zn的总可提取浓度。
This article investigates the relationship between soil Cd, Cu, Pb and Zn contaminants and the location and activities of the Pb-Zn-Ag and Cu mines at Mount Isa, Queensland, Australia. Analysis of the data focuses primarily on soil Pb distributions and concentrations because of their potential impact on children's health. The Xstrata Mount Isa Mines lease (XMIM) is Australia's leading emitter of numerous contaminants to the environment, including Cu and Pb, and the mining-related activities have been linked causally to the findings of a 2008 study that showed 11.3% of local children (12-60 months) have blood Pb levels >10 mu g/dL. Queensland government authorities and Xstrata Mount Isa Mines Pty Ltd maintain that contaminants within environmental systems around Mount Isa are largely the result of near-surface mineralization. The evidence for whether the contamination is derived from XMIM or other possible sources, such as the natural weathering of ore-rich bedrock, is investigated using data from surface and subsurface soil chemistry, atmospheric modelling of metal contaminants from mining and smelting operations and local geological and associated geochemical studies. Sixty surface soil samples collected from sites adjacent to houses, parks and schools throughout Mount Isa city were analyzed for their total extractable Cd, Cu, Pb and Zn concentrations in the 180 mu m (coarser) and