Classification
UCEA - Environmental impact
UPP - Water pollution
5
UCS - Environmental chemistry
4
EXA - Energy policy
3
TBC - Electronic circuits
3
TBVJ - Printed circuits
3
UCA - Environmental problems, man and environment - general aspects
3
UED - Environmental policy
3
UEF - Sustainability
3
UHC - Area planning and environment
3
YEA - Environmental law
3
CXUR - Surfactants
2
GRB - Climatology
2
UCJ - Environmental protection - general aspects
2
UKH - Environment and power plants, industrial plants
2
UKL - Environment and nuclear power
2
UMB - Atmospheric chemistry
2
UMT - Acid rain and atmospheric deposition
2
UVC - Environmental chemicals, hazardous materials - general aspects
2
UXS - Radioactive waste management
2
EHA - Renewable energy sources
1
EPK - Nuclear energy
1
GMA - Geochemistry - general
1
GUAA - Geography - physical
1
LCK - Ecology - general aspects
1
LCR - Ecology of microorganisms - land and water
1
LHH - Microbiology - methods
1
LHL - Microbiology - general aspects
1
LWE - Agriculture - general aspects
1
LWH - Agriculture - soil sciences
1
LWV - Agriculture - plant protection
1
UCEB - Environmental pollution
1
UCG - Control of environmental pollution
1
UCL - Environmental research
1
UEN - Environmental economy
1
UEND - Environmental costs, environmental investments
1
UHP - Protection of nature and landscape
1
UKA - Environmental damage and energy production
1
UMN - Air pollution control and measurement
1
UMV - Climatic change
1
UPVN - Ocean water, coastal waters
1
URA - Soil chemistry
1
USG - Waste treatment, waste disposal
1
USN - Waste water treatment
1
UVFD - Environmental aspects of specific heavy metals - cadmium, lead, mercury
1
UXA - Environmental radioactivity
1
UXL - Radiation protection - general aspects
1
UXX - Marine disposal of radioactive waste
1
YBB - Law - general
1
YEG - Law on waste, law on pollution
1