| Environmental Science and Ecology | Lifetime | 103 | US 39 | 99.97 |
| Earth, Ocean and Atmospheric Sciences | Lifetime | 625 | US 288 | 99.43 |
| Environmental Chemistry | Lifetime | 14 | US 7 | 99.90 |
| Health, Toxicology and Mutagenesis | Lifetime | 83 | US 33 | 99.65 |
| Water Science and Technology | Lifetime | 211 | US 38 | 99.35 |
| Pollution | Lifetime | 125 | US 23 | 99.30 |
| Geochemistry and Petrology | Lifetime | 85 | US 36 | 98.83 |
| Ecology | Lifetime | 650 | US 276 | 98.46 |
| Oceanography and Marine Geoscience | Lifetime | 480 | US 226 | 97.05 |
| Soil Science and Agricultural Water Management | Lifetime | 458 | US 135 | 96.76 |
| Environmental Engineering | Lifetime | 982 | US 301 | 93.87 |
| Industrial Environmental Engineering | Lifetime | 835 | US 154 | 91.38 |
| Atmospheric Science and Meteorology | Lifetime | 627 | US 336 | 90.63 |
| Hydrology and Water Resources | Lifetime | 370 | US 117 | 80.22 |
| Health, Toxicology and Mutagenesis | 2021-2025 | 636 | US 144 | 86.50 |
| Environmental Chemistry | 2021-2025 | 368 | US 92 | 74.80 |
| Water Quality and Pollution Assessment | Lifetime | 3 | US 2 | 99.81 |
| Mercury impact and mitigation studies | Lifetime | 5 | US 2 | 99.81 |
| Groundwater and Isotope Geochemistry | Lifetime | 8 | US 6 | 99.72 |
| Soil and Water Nutrient Dynamics | Lifetime | 8 | US 6 | 99.92 |
| Water Quality and Resources Studies | Lifetime | 3 | US 3 | 99.78 |
| Mine drainage and remediation techniques | Lifetime | 10 | US 7 | 99.65 |
| Heavy metals in environment | Lifetime | 48 | US 11 | 99.75 |
| Peatlands and Wetlands Ecology | Lifetime | 32 | US 14 | 99.56 |
| Toxic Organic Pollutants Impact | Lifetime | 231 | US 56 | 98.87 |
| Marine Biogeochemistry and Ocean Ecosystems | Lifetime | 397 | US 179 | 98.64 |
| Heavy Metal Exposure and Toxicity | Lifetime | 314 | US 114 | 97.96 |
| Soil Carbon and Nitrogen Dynamics | Lifetime | 518 | US 147 | 98.59 |
| Aquatic Ecosystems and Phytoplankton Dynamics | Lifetime | 388 | US 102 | 97.56 |
| Hydrology and Watershed Management Studies | Lifetime | 879 | US 275 | 97.84 |
| Smart Materials for Construction | Lifetime | 279 | US 67 | 96.26 |
| Groundwater flow and contamination studies | Lifetime | 587 | US 262 | 96.96 |
| Clay minerals and soil interactions | Lifetime | 475 | US 123 | 96.11 |
| Ecology and biodiversity studies | Lifetime | 260 | US 104 | 94.79 |
| Aluminum toxicity and tolerance in plants and animals | Lifetime | 394 | US 75 | 94.37 |
| Arsenic contamination and mitigation | Lifetime | 593 | US 123 | 94.46 |
| Mercury impact and mitigation studies | 2021-2025 | 442 | US 31 | 86.74 |
| Peatlands and Wetlands Ecology | 2021-2025 | 783 | US 121 | 80.27 |
