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2023 Jan 19;8(1):57–79. doi: 10.1007/s43217-023-00124-y

Table 2.

Weightage of parameters for the calculation of PIG

Parameter pH EC TDS TSS TH Na K Ca Mg
Temporary weight (wj) 4 3 3 3 3 3 2 2 2
Final weight (wi) 0.3225 0.338 0.338 0.338 0.338 0.338 0.0969 0.0969 0.0969
Parameter Cl SO4 HCO3 NO3 Fe Zn Ni Cr Pb
Temporary weight (wj) 3 4 3 4 4 4 5 5 5
Final weight (wi) 0.338 0.3225 0.338 0.3225 0.3225 0.3225 0.2416 0.2416 0.2416