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Table 1 Rank assignment method used for screening the chemical compounds

From: Multiphasic screening of priority chemical compounds in drinking water by process control and human health risk

  No Low Moderate High
Concentration Ci ≤ 0.1Cs 0.1Cs < Ci ≤ 0.5Cs 0.5Cs < Ci ≤ Cs Ci > Cs
Accumulation index AI ≤ 0 0 < AI ≤ 25% 25% < AI ≤ 50% AI > 50%
Purification index 3 2B 2A 1
Hazard index HI ≤ 0.01 0.01 < HI ≤ 0.1 0.1 < HI ≤ 1 HI > 1
Carcinogenic risk CR ≤ 10−6 10−6 < CR ≤ 10−5 10−5 < CR ≤ 10−4 CR > 10−4