| SARS-CoV-2 detection and testing | Lifetime | 21 | US 4 | 99.23 |
| Groundwater and Isotope Geochemistry | Lifetime | 51 | US 25 | 99.23 |
| SARS-CoV-2 and COVID-19 Research | Lifetime | 275 | US 104 | 98.96 |
| Groundwater and Watershed Analysis | Lifetime | 37 | US 2 | 98.90 |
| Heavy metals in environment | Lifetime | 203 | US 37 | 99.08 |
| Water Quality and Pollution Assessment | Lifetime | 107 | US 21 | 98.78 |
| Arsenic contamination and mitigation | Lifetime | 81 | US 18 | 98.68 |
| COVID-19 Clinical Research Studies | Lifetime | 598 | US 147 | 97.81 |
| Adsorption and biosorption for pollutant removal | Lifetime | 441 | US 25 | 97.88 |
| Pharmaceutical and Antibiotic Environmental Impacts | Lifetime | 468 | US 63 | 97.99 |
| Heavy Metal Exposure and Toxicity | Lifetime | 446 | US 166 | 97.33 |
| Fluoride Effects and Removal | Lifetime | 149 | US 37 | 96.00 |
| Wastewater Treatment and Reuse | Lifetime | 195 | US 31 | 96.44 |
| Biosensors and Analytical Detection | Lifetime | 886 | US 121 | 96.14 |
| Urban Stormwater Management Solutions | Lifetime | 701 | US 244 | 91.14 |
| Chemical Analysis and Environmental Impact | Lifetime | 427 | US 194 | 83.22 |
| SARS-CoV-2 detection and testing | 2021-2025 | 1 | US 1 | 99.79 |
| Arsenic contamination and mitigation | 2021-2025 | 10 | US 1 | 98.78 |
| SARS-CoV-2 and COVID-19 Research | 2021-2025 | 144 | US 53 | 99.31 |
| Heavy metals in environment | 2021-2025 | 54 | US 4 | 98.88 |
| Wastewater Treatment and Reuse | 2021-2025 | 9 | US 1 | 96.58 |
| Biosensors and Analytical Detection | 2021-2025 | 68 | US 4 | 98.75 |
| Groundwater and Isotope Geochemistry | 2021-2025 | 38 | US 2 | 98.39 |
| Heavy Metal Exposure and Toxicity | 2021-2025 | 45 | US 5 | 97.65 |
| Pharmaceutical and Antibiotic Environmental Impacts | 2021-2025 | 183 | US 6 | 96.86 |
| Adsorption and biosorption for pollutant removal | 2021-2025 | 297 | US 7 | 96.00 |
| Geochemistry and Geologic Mapping | 2021-2025 | 499 | US 24 | 93.23 |
| Groundwater and Watershed Analysis | 2021-2025 | 111 | US 3 | 94.00 |
| Water Quality and Pollution Assessment | 2021-2025 | 205 | US 10 | 91.96 |
| Fluoride Effects and Removal | 2021-2025 | 149 | US 13 | 82.90 |
| Groundwater flow and contamination studies | 2021-2025 | 632 | US 99 | 83.25 |
| Constructed Wetlands for Wastewater Treatment | 2021-2025 | 750 | US 29 | 76.30 |
| Per- and polyfluoroalkyl substances research | 2021-2025 | 844 | US 330 | 77.31 |
| Radioactivity and Radon Measurements | 2021-2025 | 928 | US 46 | 75.55 |
| Urban Stormwater Management Solutions | 2021-2025 | 826 | US 140 | 63.35 |
| Chemical Analysis and Environmental Impact | 2021-2025 | 190 | US 62 | 56.61 |
| Healthcare and Environmental Waste Management | 2021-2025 | 633 | US 39 | 59.31 |
| Fecal contamination and water quality | 2021-2025 | 443 | US 151 | 49.22 |
