| Composting and Vermicomposting Techniques | Lifetime | 6 | CN 3 | 99.75 |
| Waste Management and Recycling | Lifetime | 7 | CN 5 | 99.50 |
| Heavy metals in environment | Lifetime | 201 | CN 50 | 99.08 |
| Adsorption and biosorption for pollutant removal | Lifetime | 273 | CN 77 | 98.57 |
| Pharmaceutical and Antibiotic Environmental Impacts | Lifetime | 517 | CN 137 | 97.81 |
| Microplastics and Plastic Pollution | Lifetime | 609 | CN 173 | 96.68 |
| Phosphorus and nutrient management | Lifetime | 390 | CN 88 | 95.98 |
| Recycling and Waste Management Techniques | Lifetime | 805 | CN 201 | 95.32 |
| Municipal Solid Waste Management | Lifetime | 334 | CN 73 | 94.55 |
| Constructed Wetlands for Wastewater Treatment | Lifetime | 506 | CN 170 | 94.26 |
| Coal and Its By-products | Lifetime | 766 | CN 269 | 91.43 |
| Fluoride Effects and Removal | Lifetime | 654 | CN 101 | 88.28 |
| Chromium effects and bioremediation | Lifetime | 943 | CN 195 | 87.86 |
| Bioeconomy and Sustainability Development | Lifetime | 318 | CN 9 | 82.30 |
| Composting and Vermicomposting Techniques | 2021-2025 | 4 | CN 4 | 99.57 |
| Fluoride Effects and Removal | 2021-2025 | 9 | CN 7 | 97.39 |
| Pharmaceutical and Antibiotic Environmental Impacts | 2021-2025 | 82 | CN 57 | 98.05 |
| Nematode management and characterization studies | 2021-2025 | 39 | CN 13 | 96.84 |
| Microplastics and Plastic Pollution | 2021-2025 | 473 | CN 202 | 95.29 |
| Phosphorus and nutrient management | 2021-2025 | 108 | CN 58 | 93.37 |
| Adsorption and biosorption for pollutant removal | 2021-2025 | 413 | CN 101 | 94.96 |
| Waste Management and Recycling | 2021-2025 | 54 | CN 8 | 89.54 |
| Heavy metals in environment | 2021-2025 | 582 | CN 301 | 92.52 |
| Chromium effects and bioremediation | 2021-2025 | 133 | CN 86 | 86.84 |
| Wastewater Treatment and Nitrogen Removal | 2021-2025 | 627 | CN 494 | 89.70 |
| Anaerobic Digestion and Biogas Production | 2021-2025 | 411 | CN 198 | 88.73 |
| Constructed Wetlands for Wastewater Treatment | 2021-2025 | 387 | CN 235 | 84.90 |
| Geochemistry and Elemental Analysis | 2021-2025 | 755 | CN 444 | 85.20 |
| Bioeconomy and Sustainability Development | 2021-2025 | 123 | CN 2 | 76.38 |
| Microbial Fuel Cells and Bioremediation | 2021-2025 | 994 | CN 584 | 79.59 |
| Municipal Solid Waste Management | 2021-2025 | 917 | CN 217 | 71.43 |
| Clay minerals and soil interactions | 2021-2025 | 814 | CN 315 | 69.47 |
| Advanced Materials Characterization Techniques | 2021-2025 | 838 | CN 330 | 54.58 |
| Solidification and crystal growth phenomena | 2021-2025 | 959 | CN 507 | 51.32 |
