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Express"],"published-print":{"date-parts":[[2022,2,14]]},"abstract":"<jats:p>Benzene is a gas known to be highly pollutant for the environment, for the water and cancerogenic for humans. In this paper, we present a sensor based on Quartz Enhanced Photoacoustic Spectroscopy dedicated to benzene analysis. Exploiting the infrared emission of a 14.85 \u00b5m quantum cascade laser, the sensor is working in an off-beam configuration, allowing easy alignment and stable measurements. The technique provides a very good selectivity to the sensor and a limit of detection of 30 ppbv in 1 s, i.e. a normalized noise equivalent absorption of 1.95\u2009\u00d7\u200910<jats:sup>\u22128<\/jats:sup> W.cm<jats:sup>\u22121<\/jats:sup>.Hz<jats:sup>\u22121\/2<\/jats:sup>. 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