# Towards low-cost QEPAS sensors for nitrogen dioxide detection

> Research article (Photoacoustics, 2020) · cited 52× · AI/ML

**Wikidata**: [openalex:W3012035438](https://www.wikidata.org/wiki/openalex:W3012035438)  
**Source**: https://4ort.xyz/entity/towards-low-cost-qepas-sensors-for-nitrogen-dioxide-detection