Assessment of health risk induced by heavy metal contents in drinking water

IF 1.6 4区环境科学与生态学 Q3 WATER RESOURCES

Journal of Water Sanitation and Hygiene for Development Pub Date : 2022-11-11 DOI:10.2166/washdev.2022.126

A. Shehu, M. Vasjari, S. Duka, L. Vallja, N. Broli, Sadik Cenolli

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引用次数: 2

Abstract

Investigation of the quality of drinking water was carried out aiming to evaluate health risks and toxicity arising from the content of heavy metals. Samples were analysed for the content of Pb, Cd, Cr, Ni, Cu, Fe, Zn, Al, and Mn. Water quality and health risk assessment were evaluated by comparing the obtained data with current National, EU, and WHO regulations as well as by using the hazard quotient and cancer risk (HQ and CR). Results showed that Al (in one sample) and Ni (in five samples) exceeded the maximum allowed limits. Based on the metal pollution index, MPI, it was concluded that none of the samples exhibited ‘very good quality’ (MPI > 0.3), whereas the overall quality of Glina bottled water was classified as toxic to humans and Trebeshina as moderately toxic. Selected samples exhibited no evident health risk to humans (HQ < 1). Among the toxic metals analysed, Ni, Cd, and Cr exhibited higher values of cancer risk index (CR > 10−4), whereas Pb exhibited the lowest value. Bottled water such as Qafeshtama, Lajthiza, Tepelena, Dukat, Spring, Living, and Aqua Pana as well as tap water collected in the area of Student's City in Tirana can be considered safe for human consumption.

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饮用水中重金属含量对健康的危害评价

对饮用水的质量进行了调查，旨在评估重金属含量对健康的风险和毒性。分析了样品中Pb、Cd、Cr、Ni、Cu、Fe、Zn、Al和Mn的含量。通过将获得的数据与国家、欧盟和世界卫生组织的现行法规进行比较，并使用危险系数和癌症风险（HQ和Cr）对水质和健康风险评估进行评估。结果表明，Al（在一个样品中）和Ni（在五个样本中）超过了允许的最大限度。根据金属污染指数MPI，得出的结论是，没有一个样品表现出“非常好的质量”（MPI>0.3），而Glina瓶装水的总体质量被归类为对人类有毒，Trebeshina被归类为中度有毒。所选样本对人类没有明显的健康风险（HQ＜1）。在分析的有毒金属中，Ni、Cd和Cr表现出较高的癌症风险指数值（Cr>10−4），而Pb表现出最低的值。Qafeshtama、Lajthiza、Tepelena、Dukat、Spring、Living和Aqua Pana等瓶装水以及地拉那学生城地区收集的自来水可以被认为是安全的。

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

Journal of Water Sanitation and Hygiene for Development WATER RESOURCES-

CiteScore

3.10

自引率

11.80%

发文量

审稿时长

16 weeks

期刊介绍： The Journal of Water, Sanitation and Hygiene for Development is a peer-reviewed journal devoted to the dissemination of high-quality information on the science, policy and practice of drinking-water supply, sanitation and hygiene at local, national and international levels.