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

Table 5

Definition of 0.1–0.9 scale.

Scale	Definition
0.1	B is extremely more important than A
0.2	B is strongly more important than A
0.3	B is more important than A
0.4	B is a little more important than A
0.5	A is as important as B
0.6	A is a little more important than B
0.7	A is more important than B
0.8	A is strongly more important than B
0.9	A is extremely more important than B