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首页> 美国卫生研究院文献>Scientific Reports >Source Spatial Distribution and Pollution Assessment of Pb Zn Cu and Pb Isotopes in urban soils of Ahvaz City a semi-arid metropolis in southwest Iran
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Source Spatial Distribution and Pollution Assessment of Pb Zn Cu and Pb Isotopes in urban soils of Ahvaz City a semi-arid metropolis in southwest Iran

机译：伊朗西南半干旱大都市阿瓦兹市城市土壤中铅锌铜和铅同位素的来源空间分布和污染评估

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This study examined the status of toxic metal contamination of the urban industrial city of Ahvaz in Iran. Two hundred and twenty-seven surface soils from a depth horizon of 0–10 cm were collected from urban areas. In addition, 15 soil samples were collected to recognise the sources of Pb in urban topsoils in Ahvaz city. Mean concentration of Pb, Zn, Cu and As were 181 ± 167, 123 ± 118, 185 ± 167 and 6.9 ± 8.9 mg.kg−1, respectively. Results of inter-element relationship among studied toxic metals revealed that Pb, Zn and Cu may have the same anthropogenic origin, whilst As originated from different sources. The results of pollution index (PI) and Nemerow pollution index (NPI) implied that Pb, Zn, and Cu had a moderate to high level of pollution. The Pb isotopic composition analysis suggested clear anthropogenic origins of Pb including industrial emission, vehicle exhaust and dust storm with the mean contributions of 47%, 15% and 7%, respectively, by a four-end member model.
机译：这项研究检查了伊朗城市工业城市阿瓦士的有毒金属污染状况。从市区收集了207个深度范围为0-10cm的表层土壤。此外，还收集了15个土壤样品以识别阿瓦士市城市表层土壤中的Pb来源。 Pb，Zn，Cu和As的平均浓度分别为181±，167、123±，118、185±167和6.9±8.9upmg.kg -1 。研究的有毒金属之间的元素间关系结果表明，Pb，Zn和Cu可能具有相同的人为来源，而As来自不同的来源。污染指数（PI）和Nemerow污染指数（NPI）的结果表明，铅，锌和铜的污染程度为中到高。铅同位素组成分析表明，铅的明确人为起源包括工业排放，汽车尾气和沙尘暴，四端成员模型的平均贡献分别为47％，15％和7％。

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