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. 2023 Apr 17;6:100042. doi: 10.1016/j.totert.2023.100042

Table 2.

Areal variation of Water Quality Index, KRB (after Brown et al., 1972)

No WQI Class 2021, km2 % 2022, km2 % Change,km2
1 Excellent (0 - 25) 676.66 96.39 631.55 89.96 45.11
2 Good (26 - 50) 25.34 3.61 67.14 9.56 41.8
3 Poor (51 - 75) - - 3.31 0.47 3.31
702.00 100.00 702.00 100.00