| Microbial Fuel Cells and Bioremediation | Lifetime | 7 | US 4 | 99.84 |
| Water Treatment and Disinfection | Lifetime | 7 | US 3 | 99.86 |
| Chemical Analysis and Environmental Impact | Lifetime | 2 | US 2 | 99.71 |
| Wastewater Treatment and Nitrogen Removal | Lifetime | 17 | US 2 | 99.89 |
| Algal biology and biofuel production | Lifetime | 39 | US 10 | 99.49 |
| Odor and Emission Control Technologies | Lifetime | 19 | US 4 | 99.00 |
| Chemical Reactions and Isotopes | Lifetime | 55 | US 34 | 98.86 |
| Microbial bioremediation and biosurfactants | Lifetime | 52 | US 19 | 99.24 |
| Anaerobic Digestion and Biogas Production | Lifetime | 81 | US 9 | 98.97 |
| Ammonia Synthesis and Nitrogen Reduction | Lifetime | 152 | US 27 | 98.43 |
| Electrochemical sensors and biosensors | Lifetime | 365 | US 37 | 98.63 |
| Environmental Chemistry and Analysis | Lifetime | 47 | US 13 | 98.18 |
| Membrane Separation Technologies | Lifetime | 253 | US 27 | 98.64 |
| Constructed Wetlands for Wastewater Treatment | Lifetime | 103 | US 10 | 98.17 |
| Environmental remediation with nanomaterials | Lifetime | 118 | US 22 | 98.43 |
| Microbial Community Ecology and Physiology | Lifetime | 435 | US 148 | 98.59 |
| Phosphorus and nutrient management | Lifetime | 155 | US 23 | 97.95 |
| Pharmaceutical and Antibiotic Environmental Impacts | Lifetime | 371 | US 51 | 98.32 |
| Radioactive element chemistry and processing | Lifetime | 598 | US 215 | 97.21 |
| Microbial Metabolic Engineering and Bioproduction | Lifetime | 599 | US 152 | 97.80 |
| Groundwater flow and contamination studies | Lifetime | 498 | US 224 | 97.32 |
| CO2 Sequestration and Geologic Interactions | Lifetime | 347 | US 113 | 96.32 |
| Toxic Organic Pollutants Impact | Lifetime | 858 | US 227 | 96.90 |
| Radioactive contamination and transfer | Lifetime | 600 | US 158 | 95.44 |
| bioluminescence and chemiluminescence research | Lifetime | 422 | US 195 | 93.76 |
| Metal Extraction and Bioleaching | Lifetime | 789 | US 106 | 94.57 |
| Aquatic Ecosystems and Phytoplankton Dynamics | Lifetime | 989 | US 238 | 95.10 |
| Fecal contamination and water quality | Lifetime | 190 | US 108 | 94.32 |
| Mine drainage and remediation techniques | Lifetime | 485 | US 115 | 94.57 |
| Chromium effects and bioremediation | Lifetime | 674 | US 144 | 90.49 |
| Microbial Applications in Construction Materials | Lifetime | 455 | US 75 | 86.20 |
| Landfill Environmental Impact Studies | Lifetime | 759 | US 172 | 86.57 |
| Hydrogen's biological and therapeutic effects | Lifetime | 608 | US 89 | 77.53 |
| Bioeconomy and Sustainability Development | Lifetime | 628 | US 61 | 72.40 |
| Wastewater Treatment and Nitrogen Removal | 2021-2025 | 74 | US 1 | 98.03 |
| Microbial Fuel Cells and Bioremediation | 2021-2025 | 75 | US 5 | 96.64 |
| Water Treatment and Disinfection | 2021-2025 | 95 | US 8 | 95.51 |
| Microbial bioremediation and biosurfactants | 2021-2025 | 108 | US 3 | 90.87 |
| Environmental remediation with nanomaterials | 2021-2025 | 234 | US 9 | 91.88 |
| Algal biology and biofuel production | 2021-2025 | 432 | US 17 | 91.73 |
| Chemical Analysis and Environmental Impact | 2021-2025 | 30 | US 15 | 86.35 |
| Chemical Reactions and Isotopes | 2021-2025 | 68 | US 9 | 85.43 |
| Ammonia Synthesis and Nitrogen Reduction | 2021-2025 | 919 | US 33 | 87.82 |
| Phosphorus and nutrient management | 2021-2025 | 543 | US 36 | 81.96 |
| Chromium effects and bioremediation | 2021-2025 | 262 | US 8 | 80.01 |
| Per- and polyfluoroalkyl substances research | 2021-2025 | 562 | US 237 | 82.66 |
| Anaerobic Digestion and Biogas Production | 2021-2025 | 857 | US 26 | 79.96 |
| Fluoride Effects and Removal | 2021-2025 | 885 | US 69 | 48.00 |
| Legionella and Acanthamoeba research | 2021-2025 | 979 | US 175 | 23.92 |
