Risk Assessment of Groundwater Contamination: A Multilevel Fuzzy Comprehensive Evaluation Approach Based on DRASTIC Model

Table 10

Membership degrees of the factors in sample 1.

Risk factor	Membership degree
D = 61 m	(1, 0, 0, 0, 0)
R = 170.2	(0, 0, 0.60, 0.40, 0)
A = 5	(0, 0, 0.25, 0.50, 0.25)
S = 2	(0, 0, 0, 0, 1)
T = 3	(0, 0, 0, 0.25, 0.75)
I = 9	(0, 0, 0.75, 0.25, 0)
C = 4.92 m/d	(0.90, 0.10, 0, 0, 0)