# persistent, bioaccumulative and toxic substance

> class of chemical compounds

**Wikidata**: [Q3502656](https://www.wikidata.org/wiki/Q3502656)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Persistent,_bioaccumulative_and_toxic_substances)  
**Source**: https://4ort.xyz/entity/persistent-bioaccumulative-and-toxic-substance