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The scale of weight for experts.
| Expert | Background | Weight |
|---|---|---|
| E1 | 50 years' experience in solid waste management | 0.23 |
| E2 | 50 years' experience in environment risk assessment | 0.23 |
| E3 | Mine senior engineer | 0.2 |
| E4 | 20 years' experience in tailings dam management | 0.18 |
| E5 | 10 years' experience in tailings dam management | 0.16 |
