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

Table 7

Pairwise comparison matrix of 𝑈₂ based on 0.1–0.9 scale.

Factor	D	R	T	C	Order index
D	0.5000	0.5515	0.8935	0.6167	2.5617
R	0.4081	0.5000	0.7986	0.6025	2.3092
T	0.1101	0.2449	0.5000	0.3248	1.1798
C	0.4098	0.3538	0.6968	0.5000	1.9604