Icons

I

II

III

IV

V

Cl⁻

≤50

≤150

≤250

≤350

>350

${\text{SO}}_4^{2-}$

≤50

≤150

≤250

≤350

>350

${\text{NH}}_4^{+}$

≤0.02

≤0.02

≤0.2

≤0.5

>0.5

${\text{NO}}_3^{-}$

≤2.0

≤5.0

≤20

≤30

>30

F⁻

≤1.0

≤1.0

≤1.0

≤2.0

>2.0

Ba

≤0.01

≤0.1

≤1.0

≤4.0

>4.0

TDS

≤300

≤500

≤1,000

≤2000

>2000

Total hardness

≤150

≤300

≤450

≤550

>550

Turbidity

≤3

≤3

≤3

≤10

>10