Search: id:"swepub:oai:DiVA.org:uu-516221" >
Quantitative assess...
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Ngubane, Zesizwe
(author)
Quantitative assessment of human health risks from chemical pollution in the uMsunduzi River, South Africa
- Article/chapterEnglish2023
Publisher, publication year, extent ...
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Springer,2023
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-516221
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-516221URI
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https://doi.org/10.1007/s11356-023-30534-4DOI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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A quantitative chemical risk assessment was performed using published data as well as data from the official monitoring programme for the uMsunduzi River in KwaZulu-Natal, South Africa. The chemicals assessed were organochlorinated pesticides (OCPs), pharmaceuticals and personal care products (PPCPs), heavy metals, and nitrates and phosphates. The water from uMsunduzi River is used locally without treatment. Consequently, the exposure routes investigated were via ingestion during domestic drinking and incidental ingestion during recreational activities, which were swimming and non-competitive canoeing, for both adults and children. For the individual chemicals, non-carcinogenic risks using the hazard quotient (HQ) and carcinogenic risks using the cancer risk (CR) were quantified. It was found that the exposed population is likely to experience non-carcinogenic effects from pesticides and phosphates, but not from PPCPs, heavy metals and nitrates. This study also found that the carcinogenic risks for OCPs were higher than the tolerable limit of 10-5, while for lead the risk was below the tolerable limit. Some of the activities that potentially contribute to chemicals onto the uMsunduzi River are subsistence farming, small plantations, illegal dumping, industries, and broken sewers. The findings of this study may act as the technical foundation for the introduction of pollution reduction measures within the catchment, including public education.
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Dzwairo, Bloodless
(author)
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Moodley, Brenda
(author)
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Stenström, Thor Axel
(author)
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Sokolova, EkaterinaUppsala universitet,Luft-, vatten- och landskapslära(Swepub:uu)ekaso624
(author)
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Uppsala universitetLuft-, vatten- och landskapslära
(creator_code:org_t)
Related titles
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In:Environmental Science and Pollution Research: Springer30:55, s. 118013-1180240944-13441614-7499
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