南非林波波省Vhembe区mulledane地区地下水重金属污染的水质评价及人类风险评估

Q1 Chemistry
Joshua Nosa Edokpayi, Abimbola Motunrayo Enitan, Ntwanano Mutileni, John Ogony Odiyo
{"title":"南非林波波省Vhembe区mulledane地区地下水重金属污染的水质评价及人类风险评估","authors":"Joshua Nosa Edokpayi,&nbsp;Abimbola Motunrayo Enitan,&nbsp;Ntwanano Mutileni,&nbsp;John Ogony Odiyo","doi":"10.1186/s13065-017-0369-y","DOIUrl":null,"url":null,"abstract":"<p><p>Groundwater is considered as good alternative to potable water because of its low turbidity and perceived low contamination. The study assessed the physio-chemical and heavy metals concentrations in eight randomly selected boreholes water at Muledane village in Limpopo Province of South Africa and the results were compared with South African National standard permissible limit. The impacts of heavy metals on human health was further determined by performing quantitative risk assessment through ingestion and dermal adsorption of heavy metals separately for adults and children in order to estimate the magnitude of heavy metals in the borehole samples. Parameters such as turbidity, nitrate, iron, manganese and chromium in some investigated boreholes did not comply with standard limits sets for domestic water use. Multivariate analyses using principal component analysis and hierarchical cluster analysis revealed natural and anthropogenic activities as sources of heavy metal contamination in the borehole water samples. The calculated non-carcinogenic effects using hazard quotient toxicity potential, cumulative hazard index and chronic daily intake of groundwater through ingestion and dermal adsorption pathways were less than a unity, which showed that consumption of the water could pose little or no significant health risk. However, maximum estimated values for an individual exceeded the risk limit of 10<sup>-6</sup> and 10<sup>-4</sup> with the highest estimated carcinogenic exposure risk (CR<sub>ing</sub>) for Cr and Pb in the groundwater. This could pose potential health risk to both adults and children in the investigated area. Therefore, precaution needs to be taken to avoid potential CR<sub>ing</sub> of people in Muledane area especially, children using the borehole water.</p>","PeriodicalId":9842,"journal":{"name":"Chemistry Central Journal","volume":"12 1","pages":"2"},"PeriodicalIF":0.0000,"publicationDate":"2018-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s13065-017-0369-y","citationCount":"80","resultStr":"{\"title\":\"Evaluation of water quality and human risk assessment due to heavy metals in groundwater around Muledane area of Vhembe District, Limpopo Province, South Africa.\",\"authors\":\"Joshua Nosa Edokpayi,&nbsp;Abimbola Motunrayo Enitan,&nbsp;Ntwanano Mutileni,&nbsp;John Ogony Odiyo\",\"doi\":\"10.1186/s13065-017-0369-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Groundwater is considered as good alternative to potable water because of its low turbidity and perceived low contamination. The study assessed the physio-chemical and heavy metals concentrations in eight randomly selected boreholes water at Muledane village in Limpopo Province of South Africa and the results were compared with South African National standard permissible limit. The impacts of heavy metals on human health was further determined by performing quantitative risk assessment through ingestion and dermal adsorption of heavy metals separately for adults and children in order to estimate the magnitude of heavy metals in the borehole samples. Parameters such as turbidity, nitrate, iron, manganese and chromium in some investigated boreholes did not comply with standard limits sets for domestic water use. Multivariate analyses using principal component analysis and hierarchical cluster analysis revealed natural and anthropogenic activities as sources of heavy metal contamination in the borehole water samples. The calculated non-carcinogenic effects using hazard quotient toxicity potential, cumulative hazard index and chronic daily intake of groundwater through ingestion and dermal adsorption pathways were less than a unity, which showed that consumption of the water could pose little or no significant health risk. However, maximum estimated values for an individual exceeded the risk limit of 10<sup>-6</sup> and 10<sup>-4</sup> with the highest estimated carcinogenic exposure risk (CR<sub>ing</sub>) for Cr and Pb in the groundwater. This could pose potential health risk to both adults and children in the investigated area. Therefore, precaution needs to be taken to avoid potential CR<sub>ing</sub> of people in Muledane area especially, children using the borehole water.</p>\",\"PeriodicalId\":9842,\"journal\":{\"name\":\"Chemistry Central Journal\",\"volume\":\"12 1\",\"pages\":\"2\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-01-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1186/s13065-017-0369-y\",\"citationCount\":\"80\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemistry Central Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1186/s13065-017-0369-y\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Chemistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemistry Central Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1186/s13065-017-0369-y","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Chemistry","Score":null,"Total":0}
引用次数: 80

摘要

地下水由于其低浊度和低污染被认为是饮用水的良好替代品。本研究对南非林波波省Muledane村随机选取的8个钻孔水中的理化和重金属浓度进行了评估,并将结果与南非国家标准允许限量进行了比较。通过分别对成人和儿童摄入和皮肤吸附重金属进行定量风险评估,进一步确定重金属对人体健康的影响,以估计钻孔样品中重金属的含量。一些被调查钻孔的浊度、硝酸盐、铁、锰和铬等参数不符合生活用水的标准限值。采用主成分分析和层次聚类分析的多变量分析表明,自然和人为活动是井水样品重金属污染的来源。利用危害商毒性潜势、累积危害指数和地下水长期日摄入量通过摄入和皮肤吸附途径计算出的非致癌效应小于1,表明饮用地下水可能产生很少或没有显著的健康风险。然而,个人的最大估计值超过了地下水中Cr和Pb的最高致癌暴露风险(CRing)的风险限值10-6和10-4。这可能对调查地区的成人和儿童构成潜在的健康风险。因此,需要采取预防措施,以避免mulledane地区人民特别是儿童使用钻孔水的潜在危险。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Evaluation of water quality and human risk assessment due to heavy metals in groundwater around Muledane area of Vhembe District, Limpopo Province, South Africa.

Evaluation of water quality and human risk assessment due to heavy metals in groundwater around Muledane area of Vhembe District, Limpopo Province, South Africa.

Evaluation of water quality and human risk assessment due to heavy metals in groundwater around Muledane area of Vhembe District, Limpopo Province, South Africa.

Evaluation of water quality and human risk assessment due to heavy metals in groundwater around Muledane area of Vhembe District, Limpopo Province, South Africa.

Groundwater is considered as good alternative to potable water because of its low turbidity and perceived low contamination. The study assessed the physio-chemical and heavy metals concentrations in eight randomly selected boreholes water at Muledane village in Limpopo Province of South Africa and the results were compared with South African National standard permissible limit. The impacts of heavy metals on human health was further determined by performing quantitative risk assessment through ingestion and dermal adsorption of heavy metals separately for adults and children in order to estimate the magnitude of heavy metals in the borehole samples. Parameters such as turbidity, nitrate, iron, manganese and chromium in some investigated boreholes did not comply with standard limits sets for domestic water use. Multivariate analyses using principal component analysis and hierarchical cluster analysis revealed natural and anthropogenic activities as sources of heavy metal contamination in the borehole water samples. The calculated non-carcinogenic effects using hazard quotient toxicity potential, cumulative hazard index and chronic daily intake of groundwater through ingestion and dermal adsorption pathways were less than a unity, which showed that consumption of the water could pose little or no significant health risk. However, maximum estimated values for an individual exceeded the risk limit of 10-6 and 10-4 with the highest estimated carcinogenic exposure risk (CRing) for Cr and Pb in the groundwater. This could pose potential health risk to both adults and children in the investigated area. Therefore, precaution needs to be taken to avoid potential CRing of people in Muledane area especially, children using the borehole water.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Chemistry Central Journal
Chemistry Central Journal 化学-化学综合
CiteScore
4.40
自引率
0.00%
发文量
0
审稿时长
3.5 months
期刊介绍: BMC Chemistry is an open access, peer reviewed journal that considers all articles in the broad field of chemistry, including research on fundamental concepts, new developments and the application of chemical sciences to broad range of research fields, industry, and other disciplines. It provides an inclusive platform for the dissemination and discussion of chemistry to aid the advancement of all areas of research. Sections: -Analytical Chemistry -Organic Chemistry -Environmental and Energy Chemistry -Agricultural and Food Chemistry -Inorganic Chemistry -Medicinal Chemistry -Physical Chemistry -Materials and Macromolecular Chemistry -Green and Sustainable Chemistry
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信