| Environmental Science and Ecology | Lifetime | 39 | US 15 | 99.99 |
| Agricultural, Food and Veterinary Sciences | Lifetime | 556 | US 161 | 99.55 |
| Pollution | Lifetime | 3 | US 1 | 99.98 |
| Ecology | Lifetime | 60 | US 21 | 99.87 |
| Molecular Biology | Lifetime | 382 | US 242 | 99.82 |
| Environmental Chemistry | Lifetime | 77 | US 32 | 99.34 |
| Soil Science and Agricultural Water Management | Lifetime | 143 | US 41 | 99.30 |
| Building and Construction | Lifetime | 411 | US 74 | 98.64 |
| Environmental Engineering | Lifetime | 658 | US 208 | 96.55 |
| Health, Toxicology and Mutagenesis | Lifetime | 873 | US 308 | 95.55 |
| Ecology | 2021-2025 | 349 | US 67 | 95.42 |
| Pollution | 2021-2025 | 285 | US 9 | 94.87 |
| Microbial Community Ecology and Physiology | Lifetime | 2 | US 1 | 99.98 |
| Microbial bioremediation and biosurfactants | Lifetime | 1 | US 1 | 99.95 |
| Genomics and Phylogenetic Studies | Lifetime | 10 | US 5 | 99.92 |
| Wastewater Treatment and Nitrogen Removal | Lifetime | 6 | US 1 | 99.96 |
| Chemical Reactions and Isotopes | Lifetime | 27 | US 20 | 99.38 |
| Gut microbiota and health | Lifetime | 95 | US 33 | 99.61 |
| Soil Carbon and Nitrogen Dynamics | Lifetime | 95 | US 36 | 99.68 |
| Soil and Water Nutrient Dynamics | Lifetime | 83 | US 41 | 99.40 |
| Pharmaceutical and Antibiotic Environmental Impacts | Lifetime | 126 | US 22 | 99.34 |
| Microbial metabolism and enzyme function | Lifetime | 27 | US 11 | 98.55 |
| Environmental remediation with nanomaterials | Lifetime | 89 | US 18 | 98.81 |
| Agriculture, Soil, Plant Science | Lifetime | 131 | US 26 | 97.34 |
| Environmental DNA in Biodiversity Studies | Lifetime | 84 | US 22 | 98.24 |
| Methane Hydrates and Related Phenomena | Lifetime | 401 | US 141 | 98.50 |
| Anaerobic Digestion and Biogas Production | Lifetime | 119 | US 14 | 98.59 |
| Microbial Fuel Cells and Bioremediation | Lifetime | 134 | US 22 | 98.35 |
| Antibiotic Resistance in Bacteria | Lifetime | 498 | US 150 | 98.48 |
| Polar Research and Ecology | Lifetime | 81 | US 28 | 97.87 |
| Chromium effects and bioremediation | Lifetime | 123 | US 36 | 97.23 |
| Pesticide and Herbicide Environmental Studies | Lifetime | 252 | US 84 | 97.44 |
| Protist diversity and phylogeny | Lifetime | 207 | US 79 | 97.31 |
| Bacteriophages and microbial interactions | Lifetime | 924 | US 442 | 97.48 |
| Molecular Biology Techniques and Applications | Lifetime | 677 | US 336 | 95.58 |
| Legume Nitrogen Fixing Symbiosis | Lifetime | 722 | US 213 | 97.08 |
| Peatlands and Wetlands Ecology | Lifetime | 712 | US 215 | 95.60 |
| Water Treatment and Disinfection | Lifetime | 774 | US 182 | 93.92 |
| Pharmaceutical and Antibiotic Environmental Impacts | 2021-2025 | 94 | US 4 | 97.95 |
| Microbial Community Ecology and Physiology | 2021-2025 | 190 | US 17 | 97.14 |
| Antibiotic Resistance in Bacteria | 2021-2025 | 309 | US 40 | 96.30 |
