Effective freshwater resource management needs improved water quality monitoring, which is often hindered by financial and infrastructure issues, especially in developing areas.*
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This study validates the use of a citizen-scientist-operated clarity tube to measure water clarity, which serves as a good proxy for total suspended solids (TSS) concentration in rivers and wastewater treatment works in Southern Africa.*
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The findings indicate that clarity tubes can be an affordable and user-friendly tool for monitoring water quality, helping to ensure that wastewater treatment facilities comply with TSS regulations while supporting global sustainability goals.*