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首页> 外文期刊>Fresenius environmental bulletin >FORM DISTRIBUTION AND POTENTIAL ECOLOGICAL RISK ASSESSMENT OF HEAVY METALS IN SOILS FROM HANDAN AND XINGTAI, CHINA
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FORM DISTRIBUTION AND POTENTIAL ECOLOGICAL RISK ASSESSMENT OF HEAVY METALS IN SOILS FROM HANDAN AND XINGTAI, CHINA

机译：邯郸和邢台地区土壤中重金属的形态分布及潜在的生态风险评估

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摘要

We investigated the distribution of seven forms of heavy metals (As, Cd, Cr, Cu, and Zn) in Handan and Xingtai soils and calculated the geoaccumulation index and the potential ecological risk index, with the aim to assess the potential risk induced by heavy metals in the soil. The average heavy metal concentrations were all below the values stated for Level I of the State Soil Environmental Quality Standards, except for Cd, whose average concentration (0.22 g/kg) exceeded the threshold level. Heavy metals were mainly present in the residual form, with small proportions as available forms. The forms were considerably affected by soil pH, organic matter, and total heavy metal concentrations. Overall, the potential ecological risk index was 79.17, which is below the RI limit of 150. However, the potential risk of Cd was at a medium level. Based on our results, the soils of the study region are not contaminated with the evaluated heavy metals.
机译：我们调查了邯郸和邢台土壤中7种形式的重金属（As，Cd，Cr，Cu和Zn）的分布，并计算了地质累积指数和潜在的生态风险指数，旨在评估重金属引起的潜在风险。土壤中的金属。重金属的平均含量均低于国家土壤环境质量标准I级规定的值，但Cd的平均浓度（0.22 g / kg）超过阈值水平。重金属主要以残留形式存在，少量为可利用形式。形态受到土壤pH，有机物和总重金属浓度的很大影响。总体而言，潜在的生态风险指数为79.17，低于RI限值150。但是，Cd的潜在风险处于中等水平。根据我们的结果，研究区域的土壤没有被评估的重金属污染。

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