# PM2.5 as a major predictor of COVID-19 basic reproduction number in the USA

> Research article (Environmental Research, 2021) · cited 30× · AI/ML

**Wikidata**: [openalex:W3154170405](https://www.wikidata.org/wiki/openalex:W3154170405)  
**Source**: https://4ort.xyz/entity/pm2-5-as-a-major-predictor-of-covid-19-basic-reproduction-number-in-the-usa