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Table 1 Range of variables measured compared to WHO standard limits for wastewater (effluent)

From: Urban mosquitoes and filamentous green algae: their biomonitoring role in heavy metal pollution in open drainage channels in Nairobi industrial area, Kenya

Variable measured (units) Range WHO limits References
pH 7.28–8.78 6.5–8.5 Nazir et al. [46]
Temperature (°C) 16.75–26.05 20–32 Onuegbu et al. [47]
TDS (ppm or mg/l) 160.33–544.67 500 Onuegbu et al. [47]
Conductivity (µS/cm) 336.67–1134.33 400–600 Nazir et al. [46]