Research Article
Assessment of a Physicochemical Indexing Method for Evaluation of Tropical River Water Quality
Table 7
The cumulative weighted subindices for the original and modified DOE-WQI.
| | Weighted subindices | Dec | Jan | Mar | | Original | Modified | Original | Modified | Original | Modified |
| | DO | 14.9 | 12.9 | 7.6 | 7.3 | 7.6 | 7.3 | | DO + BOD | 32.8 | 28.3 | 25.7 | 23.9 | 25.8 | 24.2 | | DO + BOD + COD | 46.3 | 44.8 | 40.6 | 39.5 | 40.0 | 39.4 | | DO + BOD + COD + NH3-N | 58.5 | 58.3 | 52.0 | 52.6 | 52.5 | 52.8 | | DO + BOD + COD + NH3-N + TSS (original)/Turb (modified) | 71.4 | 68.9 | 61.8 | 61.5 | 63.6 | 62.1 | | DO + BOD + COD + NH3-N + TSS (original)/Turb (modified) + pH (original)/FCC (modified) | 83.2 | 70.1 | 73.5 | 63.7 | 75.3 | 62.5 |
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