- Environment, general 14
- Characterization and Evaluation of Materials 12
- Earth Sciences, general 11
- Environmental Chemistry 9
- Atmospheric Protection/Air Quality Control/Air Pollution 8
- Biochemistry, general 8
- Ecotoxicology 8
- Science, multidisciplinary 8
- Environmental Health 7
- Geochemistry 7
- Optical and Electronic Materials 7
- Science, Humanities and Social Sciences, multidisciplinary 7
- Cancer Research 6
- Computer Communication Networks 6
- Geology 6
- Geophysics/Geodesy 6
- Geotechnical Engineering & Applied Earth Sciences 6
- Life Sciences, general 6
- Manufacturing, Machines, Tools, Processes 6
- Plant Sciences 6