# background radiation

> level of ionizing radiation present in the natural environment

**Wikidata**: [Q1185086](https://www.wikidata.org/wiki/Q1185086)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Background_radiation)  
**Source**: https://4ort.xyz/entity/background-radiation


## References

1. Freebase Data Dumps. 2013
2. YSO-Wikidata mapping project
3. UMLS 2023
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)