Microplastics in freshwater environment: the first evaluation in sediment of the Vaal River, South Africa

Saad, Dalia; Ndlovu, Michelle; Ramaremisa, Gibbon; Tutu, Hlanganani

doi:10.1016/j.heliyon.2022.e11118

Cited by 21 publications

(13 citation statements)

References 49 publications

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“…A great variety of colorant agents such as pigments and dyes are widely used during plastic manufacturing, thus, a large number of colored MP wastes are produced with the consumption of these products. 55 Colored fragments observed in this study are probably the result of breakdown of larger plastic products. Color was also used for a preliminary identification of the chemical composition, since it has been reported that transparent and white MPs have been ascribed to polypropylene and polyethylene, respectively.…”

Section: Resultsmentioning

confidence: 67%

Microplastic-sorbed persistent organic pollutants in coastal Mediterranean Sea areas of Tunisia

Barhoumi

Métian

Zaghden

et al. 2023

Environ. Sci.: Processes Impacts

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Section: Resultsmentioning

confidence: 67%

Microplastic-sorbed persistent organic pollutants in coastal Mediterranean Sea areas of Tunisia

Barhoumi

Métian

Zaghden

et al. 2023

Environ. Sci.: Processes Impacts

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“…Based on the finding, it was estimated that about 109–336.2 billion particles could be transported to the Okavango delta. Saad et al. (2022) analysed MPs abundance in Vaal River in South Africa and discovered mean MPs of 463.28 ± 284.08 particles/kg_dw.…”

Section: Resultsmentioning

confidence: 99%

“…Other aspects of sampling such as grab sampling, e.g. Van Veen grab (Saad et al. , 2022), is commonly used to sample from water surfaces, including rivers.…”

Section: Resultsmentioning

confidence: 99%

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Microplastic pollution in Africa: an overview of abundance in aquatic organisms, freshwater and marine water environments and analytical methods for reporting

Asori,

Dogbey,

Ampofo

et al. 2023

MEQ

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PurposeCurrent evidence indicates that humans and animals are at increased risk of multiple health challenges due to microplastic (MP) profusion. However, mitigation is constrained by inadequate scientific data, further aggravated by the lack of evidence in many African countries. This review therefore synthesized evidence on the current extent of MP pollution in Africa and the analytical techniques for reporting.Design/methodology/approachA literature search was undertaken in research databases. Medical subject headings (MeSH) terms and keywords were used in the literature search. The authors found 38 studies from 10 countries that met the inclusion criteria.FindingsMarine organisms had MPs prevalence ranging from 19% to 100%, whereas sediments and water samples had between 77 and 100%. The most common and dominant polymers included polypropylene and polyethylene.Practical implicationsThis review shows that most studies still use methods that are prone to human errors. Therefore, the concentration of MPs is likely underestimated, even though the authors’ prevalence evaluations show MPs are still largely pervasive across multiple environmental matrices. Also, the study reveals significant spatial disparity in MP research across the African continent, showing the need for further research in other African countries.Originality/valueEven though some reviews have assessed MPs pollution in Africa, they have not evaluated sample prevalence, which is necessary to understand not only concentration but pervasiveness across the continent. Secondly, this study delves deeper into various methods of sampling, extraction and analysis of MPs, as well as limitations and relevant recommendations.

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“…Evaporation ponds are a remedy for industrial effluent that is fed into massive ponds and evaporated gradually using direct sunlight [18] . In several nations across the globe, they are a common method of salt water treatment [1] .…”

Section: Introductionmentioning

confidence: 99%

The reliability of evaporation ponds as a final basin for industrial effluent: Demonstration of an environmental risk management methodology

Adam¹,

Saffaj²,

Mamouni³

2023

MethodsX

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Microplastics in freshwater environment: the first evaluation in sediment of the Vaal River, South Africa

Cited by 21 publications

References 49 publications

Microplastic-sorbed persistent organic pollutants in coastal Mediterranean Sea areas of Tunisia

Microplastic-sorbed persistent organic pollutants in coastal Mediterranean Sea areas of Tunisia

Microplastic pollution in Africa: an overview of abundance in aquatic organisms, freshwater and marine water environments and analytical methods for reporting

The reliability of evaporation ponds as a final basin for industrial effluent: Demonstration of an environmental risk management methodology

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