Health risk assessment consequent to wastewater irrigation in Pakistan

IF 0.4 Q4 SOIL SCIENCE Soil & Environment Pub Date : 2020-05-25 DOI:10.25252/se/19/71758

M. Sabeen, Q. Mahmood, A. Ebadi, Z. A. Bhatti, F. Faridullah, M. Irshad, Allauddin Kakar, M. Bilal, H. Arshad, N. Shahid

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引用次数: 9

Abstract

The aim of this study was to investigate the uptake and accumulation of heavy metals including cadmium, chromium, iron, nickel, and lead in 8 food crops irrigated with industrial wastewater and correlate the levels with potential human health risks. The concentrations of these metals in the food crops irrigated with wastewater decreased in the order iron (Fe) ˃ chromium (Cr) ˃ cadmium (Cd) ˃ nickel (Ni) ˃ lead (Pb). In all cases, the metallic contents in the vegetables exceeded the safe limits recommended by FAO/WHO. The highest bioaccumulation factor was recorded for cadmium. Further, the health risk indices of cadmium and lead were greater than 1 in seven food crops. For nickel, health risk was exceeded only for Pisum sativum and Solanum tuberosum. The indices for various food crops were in decreasing order: Cd > Pb > Ni > Cr > Fe. Out of 8 food crops, only Cantiquorum antiquorum showed risk indices lower than 1 for all 5 metals. Data demonstrated that food crops irrigated with wastewater in this study area are highly metal contaminated and may constitute a serious health risk to the local human and animal populations.

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巴基斯坦废水灌溉的健康风险评估

本研究的目的是调查用工业废水灌溉的8种粮食作物中镉、铬、铁、镍和铅等重金属的吸收和积累情况，并将其水平与潜在的人类健康风险相关联。这些金属在用废水灌溉的粮食作物中的浓度按铁（Fe）铬（Cr）镉（Cd）镍（Ni）铅（Pb）的顺序降低。在所有情况下，蔬菜中的金属含量都超过了粮农组织/世界卫生组织建议的安全限值。镉的生物累积因子最高。此外，镉和铅的健康风险指数大于七分之一的粮食作物。对于镍，健康风险仅超过豌豆和茄属块茎。不同粮食作物的各项指标依次为：Cd＞Pb＞Ni＞Cr＞Fe。在8种粮食作物中，只有抗昆虫病的5种金属的风险指数均低于1。数据表明，该研究区域用废水灌溉的粮食作物受到高度金属污染，可能对当地人类和动物种群构成严重的健康风险。

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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