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250508s2025 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2025.2473656
|2 doi
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|a eng
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|a Ditlhakanyane, Baatshwana Caroline
|e verfasserin
|4 aut
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|a Quantification of microplastics in Coptodon rendalli and surface waters of Dikgatlhong Dam, Botswana
|b the first baseline evidence
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|c 2025
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 06.03.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a This study investigated the presence, distribution, and bioaccumulation of microplastics in surface water and Coptodon rendalli at six sites in Dikgatlhong Dam, Botswana: S1 (Tati River Inflow), S2 (Tati River Midway), S3 (Confluence), S4 (Boundary Wall), S5 (Shashe River Midway), and S6 (Shashe River Inflow). All samples were taken in a single day to ensure consistency. To digest organic materials, water samples were processed with the wet peroxide oxidation method, whereas fish tissues were pre-treated with 10% potassium hydroxide (KOH) before going through the same oxidation procedure to extract microplastics efficiently. Surface water microplastic concentrations ranged from 33.59 ± 5.15 n/L (S5) to 78.32 ± 12.83 n/L (S1), and items per fish ranged from 9.46 ± 2.98 (S4) to 19.33 ± 5.87 (S1). The moderate positive association (r = 0.65) between water and fish microplastic levels suggests that water is the primary exposure channel. However, site-specific variations in microplastic size reveal additional factors such as sediment interactions and feeding behaviours. This study emphasizes the importance of focused mitigation methods for managing microplastic pollution and provides a key baseline for future research on microplastic contamination in Botswana's aquatic systems
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|a Journal Article
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|a Bioaccumulation
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|a Coptodon rendalli
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|a dikgatlhong dam
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|a freshwater pollution
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| 650 |
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|a microplastics
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|a Ultra, Venecio U
|e verfasserin
|4 aut
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|a Mokgosi, Serwalo Mercy
|e verfasserin
|4 aut
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|a Taupedi, Sekgele Bobby
|e verfasserin
|4 aut
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|a Oleszek, Sylwia
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g (2025) vom: 06. März, Seite 1-11
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnas
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|g year:2025
|g day:06
|g month:03
|g pages:1-11
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|u http://dx.doi.org/10.1080/09593330.2025.2473656
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