Table 5 Examination of tap water in several sub-Saharan African countries

Colour

―

<15 TCU

5.0

Turbidity

<1 NTU

0.5

0.7

1.5

0.8

pH

6.5~8.6

7.8

8.0

7.4

6.9

7.6

Iron (mg/L)

―

Mean 0.3

0.28

0.018

Manganese (mg/L)

<0.4

32.4

0.074

ND

Nitrate (mg/L)

<50

1.4

0.0

0.4

0.031

Ammonium (mg/L)

―

1.5

<0.04

Total dissolved solids (mg/L)

―

Median: 1000

15.7

Hardness (mg/L)

―

9.2

70.0

64.0

Sodium (mg/L)

―

Median: 200

592.0

11.0

Fluoride (mg/L)

1.5

0.4

0.5

E Coli (mg/L)

0

<1