About: persistent toxic substance

Premodifier: persistent toxic
Head noun: substance

Same concepts

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
mercury	isap:317098195	0.539831
pcb	isap:262440808	0.482491
ddt	isap:262989144	0.462841
lead	isap:290607545	0.355992