Classification
URA - Soil chemistry
3
UVC - Environmental chemicals, hazardous materials - general aspects
GNA - Geology - soil sciences
1
HYB - Public health, health politics
1
HYE - Environmental health
1
LCK - Ecology - general aspects
1
LWH - Agriculture - soil sciences
1
UCGE - Control of environmental pollution - analytical methods
1
UCS - Environmental chemistry
1
UMLN - Air pollution by other sources
1
UPT - Water pollution control and measurement
1
UPTF - Organic pollutants in water
1
UPTK - Volatile pollutants in water
1
UUD - Ecotoxicology
1
UVW - Special effects of hazardous materials
1