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This study was done to assess the pollution of Apies River using both chemical and microbiological methods. The pollution index of the river revealed that the concentration of most pollutants downstream is more than 50% of the upstream concentration. The natural sources of the pollution in Apies River are the weathering of geological formations; whereas the anthropogenic sources are agriculture; Municipal WWTW and direct deposit of waste into the river. The natural sources of pollution contributed towards chemical pollution; whereas the anthropogenic sources contributed both chemical and microbiological pollution. The Apies River is hypertrophic downstream of the Rooiwal WWTW; however the current physiochemical state of the River warrants its ability to be used for safe irrigation in agricultural practices. The current microbiological state of the River does make it harmful for human consumption especially as drinking water; however, the water should be boiled prior to use to inactivate the bacteria present in the water. The study was able to provide in analysis the variation of the contaminants in the River.

Evaluating the Pollution of the Apies River in Pretoria South Africa