- Environmental Engineering/Biotechnology 264
- Biotechnology 158
- Microbiology 113
- Renewable and Green Energy 72
- Applied Microbiology 71
- Industrial Chemistry/Chemical Engineering 67
- Industrial and Production Engineering 57
- Biochemistry, general 53
- Plant Breeding/Biotechnology 49
- Food Science 40
- Environment, general 26
- Environmental Chemistry 22
- Biological Techniques 18
- Biochemical Engineering 15
- Polymer Sciences 15
- Materials Science, general 14
- Fossil Fuels (incl. Carbon Capture) 12
- Environmental Economics 11
- Environmental Management 11
- Biomedical Engineering and Bioengineering 10