About: air toxic

Premodifier: air
Head noun: toxic

Same concepts
http://dbpedia.org/resource/Air_pollution

Broader concepts

label	provenance	confidence
air pollutant	isap:335574829	0.840018
topic	isap:373431477	0.742076
pollutant	isap:335574827	0.622385
issue	isap:366593681	0.601597
air pollution	isap:335917539	0.533134
emission	isap:294320987	0.467768

Narrower concepts

label	provenance	confidence
mercury	isap:33013317	0.824673
heavy metal	isap:375093473	0.789285
benzene	isap:34678342	0.748567
sulfur dioxide	isap:34521479	0.703206
formaldehyde	isap:68383643	0.681178
ground-level ozone	isap:367480281	0.595027
dioxin	isap:121953714	0.422358
hexane	isap:119135818	0.383122
toluene	isap:31345331	0.381597
lead	isap:88333593	0.379297
arsenic	isap:36070861	0.345045
nox	isap:471179329	0.316543
acetaldehyde	isap:68522978	0.314147