जल गुणवत्ता सूचकांक कैलकुलेटर — सूत्र

How to Calculate Water Quality Index

The WQI combines multiple water quality parameters into a single score.

Formula

WQI = DO(0.30) + pH(0.15) + Turbidity(0.20) + Temp(0.15) + Nutrients(0.20)

Rating Scale

  • 90-100: Excellent
  • 70-89: Good
  • 50-69: Medium
  • 25-49: Bad
  • 0-24: Very Bad

    • Each parameter is first converted to a 0-100 sub-index score based on its measured value.

    हल किया गया उदाहरण

    A water body with DO=75, pH=80, Turbidity=70, Temperature=85, Nutrients=65.

    1. DO: 75 * 0.30 = 22.5
    2. pH: 80 * 0.15 = 12.0
    3. Turbidity: 70 * 0.20 = 14.0
    4. Temperature: 85 * 0.15 = 12.75
    5. Nutrients: 65 * 0.20 = 13.0
    6. WQI = 22.5 + 12.0 + 14.0 + 12.75 + 13.0 = 74.3 (Good)