How Is Wqi Measured

The WQI is calculated by averaging the individual index values of some or all of the parameters within five water quality parameter categories: Water clarity: turbidity (NTU*) and/or Secchi disk depth (meters or feet); Dissolved oxygen: Dissolved oxygen concentration (mg/l);

What is a good Wqi score?

WQI scores from 80-100 indicate high water quality, meaning that water quality rarely exceeds guidelines, and if so, only by a narrow margin. WQI scores from 70-79 indicates fair or marginal water quality that sometimes exceeds guidelines, possibly by a wide margin.

What does water quality index Wqi mean?

Water Quality Index (WQI) is a single number which can be calculated easily and used for overall description of the quality of water bodies. … WQI gathers a large number of water quality parameters and expresses the water quality in a comprehensible manner such as “very good”, “good”, “poor”, etc.