biohazard vs health hazard

biohazard and health hazard both are nouns.

Word	Noun	Adjective	Verb	Adverb
biohazard	Yes	No	No	No
health hazard	Yes	No	No	No

As nouns, health hazard is a hypernym of biohazard; that is, health hazard is a word with a broader meaning than biohazard:

biohazard: hazard to humans or the environment resulting from biological agents or conditions
health hazard: hazard to the health of those exposed to it

biohazard (noun)	health hazard (noun)
any bacterium or virus or toxin that could be used in biological warfare	hazard to the health of those exposed to it
hazard to humans or the environment resulting from biological agents or conditions