Journal of Environmental and Public Health / 2020 / Article / Tab 1

Research Article

Domestic Groundwater Quality in the Northern Governorates of the West Bank, Palestine

Table 1

Physiochemical and microbiological parameters of the groundwater in the Northern governorates of the West Bank, the PSI standards, and the WHO guideline.

Physiochemical parameterRange of measured valuesAvg. ± S.DWHO guidelines [20]PSI standards [19]Samples over MCLa of PSI (%)

Total hardness ( mg/L)204–485351 ± 60.2NA5000%
Chloride (mg/L)24–23232 ± 44.7Up to 250Up to 2500%
Conductivity EC (μS/cm)401–6130820 ± 654Up to 2000Up to 20001.4%
pH7.09–8.477.6 ± 0.86.5–8.56.5–8.50%
Sodium (Na)21–7732 ± 20.01002000%
Nitrate () (mg /L)1–8232 ± 20.0Up to 505018%
Turbidity (NTU)0.3–6.41.4 ± 1.3Up to 5.0Up to 5.02.6%
Temperature (°C)18–2723 ± 1.41NANANA
Total Coliforms (CFU/100 mL)0–400.5 ± 4.5800–31.3
Fecal Coliforms (CFU/100 mL)0–250.33 ± 2.87001.3

aMCL: maximum concentration limit according to PSI [19]; NTU: nephelometric turbidity units; NA: not available; Avg.: average; CFU: colony forming unit.

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