- Atmospheric Protection/Air Quality Control/Air Pollution 6
- Ecology 6
- Environmental Management 6
- Forestry Management 6
- Nature Conservation 6
- Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution 6
- Eukaryotic Microbiology 2
- Medical Microbiology 2
- Microbial Ecology 2
- Microbiology 2
- Plant Sciences 2