Index | Range | Classification | Samples | (%) |
CR | greater than 10Eā6 and less than 10Eā4 | Generally satisfactory | 10 | 83.3 |
>10ā4 | Intolerable | 2 | 16.7 | |
HQ | <1 | Acceptable level (no concern) | 12 | 100 |
>1 | No carcinogenic adverse effects | - | - | |
HI | <1 | Safe | 12 | 100 |
>1 | Unsafe | - | - |