| Environmental Science and Ecology | Lifetime | 265 | CN 31 | 99.93 |
| Earth, Ocean and Atmospheric Sciences | Lifetime | 517 | CN 43 | 99.51 |
| Environmental Science and Ecology | 2021-2025 | 106 | CN 45 | 99.90 |
| Earth, Ocean and Atmospheric Sciences | 2021-2025 | 65 | CN 34 | 99.50 |
| Health, Toxicology and Mutagenesis | Lifetime | 23 | CN 5 | 99.90 |
| Atmospheric Science and Meteorology | Lifetime | 34 | CN 2 | 99.73 |
| Automotive Engineering | Lifetime | 183 | CN 66 | 98.89 |
| Environmental Engineering | Lifetime | 711 | CN 147 | 96.04 |
| Pollution | Lifetime | 560 | CN 146 | 95.82 |
| Atmospheric Science and Meteorology | 2021-2025 | 2 | CN 1 | 99.88 |
| Health, Toxicology and Mutagenesis | 2021-2025 | 12 | CN 5 | 99.88 |
| Environmental Engineering | 2021-2025 | 293 | CN 129 | 95.16 |
| Automotive Engineering | 2021-2025 | 477 | CN 265 | 90.60 |
| Global and Planetary Change | 2021-2025 | 794 | CN 233 | 89.42 |
| Vehicle emissions and performance | Lifetime | 8 | CN 2 | 99.92 |
| Air Quality and Health Impacts | Lifetime | 22 | CN 6 | 99.90 |
| Mercury impact and mitigation studies | Lifetime | 8 | CN 2 | 99.78 |
| Atmospheric chemistry and aerosols | Lifetime | 42 | CN 6 | 99.87 |
| Air Quality Monitoring and Forecasting | Lifetime | 27 | CN 7 | 99.77 |
| Energy and Environment Impacts | Lifetime | 102 | CN 21 | 98.95 |
| Toxic Organic Pollutants Impact | Lifetime | 180 | CN 42 | 99.06 |
| Heavy Metal Exposure and Toxicity | Lifetime | 380 | CN 40 | 97.58 |
| Climate Change and Health Impacts | Lifetime | 448 | CN 54 | 96.97 |
| Heavy metals in environment | Lifetime | 996 | CN 212 | 96.91 |
| Environmental Policies and Emissions | Lifetime | 62 | CN 5 | 92.97 |
| Coal and Its By-products | Lifetime | 972 | CN 334 | 89.50 |
| COVID-19 impact on air quality | Lifetime | 604 | CN 117 | 74.25 |
| Safety and Risk Management | Lifetime | 705 | CN 602 | 54.50 |
| Atmospheric chemistry and aerosols | 2021-2025 | 4 | CN 3 | 99.88 |
| Air Quality and Health Impacts | 2021-2025 | 12 | CN 7 | 99.84 |
| Air Quality Monitoring and Forecasting | 2021-2025 | 10 | CN 6 | 99.27 |
| Vehicle emissions and performance | 2021-2025 | 11 | CN 7 | 99.41 |
| Mercury impact and mitigation studies | 2021-2025 | 8 | CN 6 | 98.99 |
| Atmospheric Ozone and Climate | 2021-2025 | 282 | CN 100 | 95.66 |
| Climate Change and Health Impacts | 2021-2025 | 455 | CN 130 | 93.12 |
| Atmospheric aerosols and clouds | 2021-2025 | 298 | CN 100 | 93.97 |
| Toxic Organic Pollutants Impact | 2021-2025 | 377 | CN 192 | 92.59 |
| Atmospheric and Environmental Gas Dynamics | 2021-2025 | 915 | CN 265 | 90.29 |
| Heavy Metal Exposure and Toxicity | 2021-2025 | 905 | CN 325 | 80.46 |