# contamination

> presence of an unwanted constituent, harmful substance or impurity in a material, physical body, or environment

**Wikidata**: [Q60528603](https://www.wikidata.org/wiki/Q60528603)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Contamination)  
**Source**: https://4ort.xyz/entity/contamination


## References

1. Freebase Data Dumps. 2013
2. YSO-Wikidata mapping project
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
4. [Source](https://www.osha.gov/hazardous-waste/decontamination)
5. [Source](https://www.pda.org/pda-letter-portal/home/full-article/contamination-control-strategies-a-path-for-quality-safety)