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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]