| environmental science and technology water | 1.37 | 1 | 1188 | 42 | 2 |
| environment science and technology water | 1.7 | 0.3 | 9813 | 40 | 8 |
| environmental science & technology water | 0.12 | 0.8 | 8785 | 40 | 30 |
| water and environmental technology | 1.6 | 0.1 | 7868 | 34 | 74 |
| environmental science water research and tech | 0.5 | 0.8 | 9231 | 45 | 96 |
| water and environmental science | 0.78 | 0.1 | 1431 | 31 | 47 |
| water environment and technology | 0.26 | 0.7 | 9027 | 32 | 88 |
| water science and technology | 0.58 | 0.3 | 1650 | 28 | 12 |
| environmental technology and science | 1.75 | 1 | 7472 | 36 | 92 |
| environmental science water research | 1.7 | 0.4 | 4370 | 36 | 1 |
