TY  - RPRT
AU  - United Nations Environment Programme
AU  - World Health Organization
PY  - 1977
SN  - 92 4 154063 X
UR  - https://wedocs.unep.org/handle/20.500.11822/29262
LA  - English
KW  - environmental health
KW  - chemical
KW  - toxic substance
KW  - nitrogen oxide
KW  - nitrogen fixation
KW  - environmentally hazardous substance
KW  - carcinogen
KW  - respiratory disease
TI  - Oxides of Nitrogen: Environmental Health Criteria 4
M3  - Technical report
ER  -