Table 4 Classification criteria of aquatic ecosystem health assessment.

Excellent

0.00–0.29

0–3.75

>0.75

20

Good

0.30–0.49

3.75–5.0

0.60–0.75

20–40

Moderate

0.5–0.69

5.0–5.75

0.45–0.6

40–60

Poor

0.7–0.89

5.75–7.25

0.3–0.45

60–80

Bad

0.9–1.00

7.25–10.0

<0.3

80–100