Samples

(TDS, mg/l)

(EC, µS/cm)

pH

Hw (mg/l CaCO₃)

Chloride (mg/l)

before

after

before

after

before

after

before

after

before

after

Seawater

31,000

61

59,900

0.12

8.36

4.46

4485

27.5

21,655

15.53

Brackish water

3670

27

7050

0.053

8.20

4.34

1745

30

2254.25

17.75

WHO standards

<600

<250

6.5 - 8.5

200

250