Research Article
Risk Assessment of Groundwater Contamination: A Multilevel Fuzzy Comprehensive Evaluation Approach Based on DRASTIC Model
Table 11
Priority weights in AHP system and membership degrees in fuzzy system.
| | Risk level | Main factors | Weight | Subfactors | Weight | Fuzzy relationship | | | | | |
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| Permeation | 0.43 | A | 0.2583 | 0.00 | 0.00 | 0.25 | 0.50 | 0.25 | | S | 0.1047 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | | I | 0.6370 | 0.00 | 0.00 | 0.75 | 0.25 | 0.00 | | Conduction | 0.57 | D | 0.5650 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | | R | 0.2622 | 0.00 | 0.00 | 0.60 | 0.40 | 0.00 | | T | 0.0553 | 0.00 | 0.00 | 0.00 | 0.25 | 0.75 | | C | 0.1175 | 0.90 | 0.10 | 0.00 | 0.00 | 0.00 |
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