- Plant Sciences 5
- Characterization and Evaluation of Materials 4
- Classical Mechanics 4
- Polymer Sciences 4
- Crystallography and Scattering Methods 3
- Ecotoxicology 3
- Environmental Chemistry 3
- Environmental Health 3
- Materials Science, general 3
- Physical Chemistry 3
- Pollution, general 3
- Soil Science & Conservation 3
- Solid Mechanics 3
- Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution 3
- Classical and Continuum Physics 2
- Computational Intelligence 2
- Condensed Matter Physics 2
- Engineering Fluid Dynamics 2
- Inorganic Chemistry 2
- Plant Physiology 2