Classification
UVW - Special effects of hazardous materials
4
UUD - Ecotoxicology
3
GNA - Geology - soil sciences
1
HPT - Toxicology
1
HYB - Public health, health politics
1
HYE - Environmental health
1
LWH - Agriculture - soil sciences
1
URA - Soil chemistry
1
UVC - Environmental chemicals, hazardous materials - general aspects
1
UVT - Environmental aspects of other hazardous materials
1