Kwemakore makumi maviri nemashanu, Dhipatimendi reMalasia Yezvakatipoteredza (DOE) rakashandisa Water Quality Index (WQI) inoshandisa zvitanhatu zvakakosha zvemhando yemvura parameters: yakanyungudika okisijeni (DO), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), pH, ammonia nitrogen (AN) uye yakamiswa solids (SS). Mvura q...
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