Table 6.

Carcinogenic risk (CR) of trace elements in surface water from Honghu Lake.

Assessment Methods	Cd		Cr	As		Pb	CR	Target Risk
	CRing	CRderm	CRing	CRing	CRderm	CRing
Fuzzy assessment	(5.86 × 10−7, 1.75 × 10−6)	(5.12 × 10−8, 1.34 × 10−7)	(9.28 × 10−6, 2.76 × 10−5)	(1.69 × 10−5, 5.06 × 10−5)	(2.25 × 10−7, 5.90 × 10−7)	(3.20 × 10−7, 9.85 × 10−7)	(2.74 × 10−5, 8.16 × 10−5)	1.00 × 10−4 [26]
Certain assessment	1.083 × 10−6	8.84 × 10−8	1.71 × 10−5	1.74 × 10−5	2.31 × 10−7	6.07 × 10−7	3.66 × 10−5	5.00 × 10−5 [27]