Persistence of heavy metals and human health risk assessment in the South Indian industrial area

IF 2.1 4区 环境科学与生态学 Q2 ENGINEERING, CIVIL
K. Arunakumari, Farveen Begum, L. Surinaidu, M. J. Nandan, Umamaheswari Alapati
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引用次数: 0

Abstract

The present study provided a comprehensive evaluation of heavy metal contamination from soil to groundwater and the associated risk to human health in an industrial area situated in Telangana state, South India. Soils at three depth levels (0, 20, and 80 cm) and groundwater samples at 32 locations have been collected in the area. The samples have been analyzed for trace metals (Mn, B, Zn, Cr, Pb, Ni, Hg, Cd, and As) to understand the heavy metal contamination. Furthermore, geo-accumulation (Igeo) of heavy metals, contamination factor, pollution index, and human health risks due to prolonged exposure to contaminated water are estimated. The results indicated that soils are moderately contaminated at 18.5, 25.9, 7.4, 14.8, and 7.1% of locations by B, Zn, Cr, Pb, Ni, and Cd, respectively, as per Igeo at 80-cm depth. However, the contamination factor indicated that 14.8% of the locations were contaminated by Mn and Zn and 7.4, 70.3, 66.6, 74, and 3.7% by B, Cr, Pb, Ni, and Cd, respectively. However, groundwater is only contaminated when groundwater levels are less than 3 m below ground level. The results also indicated higher carcinogenetic health risks if groundwater is used for a longer time.
南印度工业区重金属持续存在与人类健康风险评估
本研究对位于印度南部特伦甘纳邦的一个工业区从土壤到地下水的重金属污染及其对人类健康的相关风险进行了全面评价。在该地区收集了三个深度(0、20和80厘米)的土壤和32个地点的地下水样本。对样品进行了微量金属(Mn, B, Zn, Cr, Pb, Ni, Hg, Cd和As)分析,以了解重金属污染情况。此外,还估计了重金属的地质累积(Igeo)、污染因子、污染指数以及长期暴露于受污染的水所造成的人类健康风险。结果表明,在80 cm深度,18.5%、25.9%、7.4、14.8%和7.1%的土壤受到B、Zn、Cr、Pb、Ni和Cd的中度污染。然而,污染因子表明,14.8%的地点受到Mn和Zn的污染,7.4、70.3、66.6、74和3.7%的地点受到B、Cr、Pb、Ni和Cd的污染。然而,地下水只有在地下水位低于地面3米时才会受到污染。研究结果还表明,地下水使用时间越长,致癌健康风险越高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.10
自引率
21.10%
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0
审稿时长
20 weeks
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