[Retracted] Groundwater Suitability Evaluation Using Entropy Weightage Quality Index (EWQI) Model and Human Health Cancer Risk Assessment of Heavy Metal in Eastern India

Table 2

Carcinogenic risk level scale [26].

Risk level	HQ/HI	Occurrence of cancer	Carcinogenic risk
1	<0.1	<1 per 10 lakh inhabitants	Very low
2		> 1 per 10 lakh inhabitants; <1 per 1 lakh inhabitants	Low
3		> 1 per 1 lakh inhabitants; <1 per 10 thousand inhabitants	Medium
4	≥ 4	> 1 per 10 thousand inhabitants; <1 per inhabitants	High