ozone
52ENVIRONMENT- MT
5211natural environment - BT1 atmosphere
- BT2 physical environment
- RT stratospheric pollution (
5216)
Mapping
- EXM agrovoc: Agrovoc (FAO - Food and Agriculture Organization)
- EXM gemet: GEMET (GEneral Multilingual Environmental Thesaurus - EEA)
- EXM unbis: Unbis (United Nations Thesaurus)
- EXM unbis: Unbis (United Nations Thesaurus)
- EXM unesco: UNESCO (United Nations Educational, Scientific and Cultural Organization)
English)