- Earth Sciences, general 3
- Remote Sensing/Photogrammetry 3
- Atmospheric Protection/Air Quality Control/Air Pollution 1
- Biogeosciences 1
- Ecotoxicology 1
- Environment, general 1
- Environmental Chemistry 1
- Environmental Health 1
- Environmental Science and Engineering 1
- Geochemistry 1
- Geology 1
- Hydrology/Water Resources 1
- Terrestrial Pollution 1
- Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution 1