Articles | Volume 12, issue 11
https://doi.org/10.5194/amt-12-6079-2019
https://doi.org/10.5194/amt-12-6079-2019
Research article
 | 
22 Nov 2019
Research article |  | 22 Nov 2019

A new laser-based and ultra-portable gas sensor for indoor and outdoor formaldehyde (HCHO) monitoring

Joshua D. Shutter, Norton T. Allen, Thomas F. Hanisco, Glenn M. Wolfe, Jason M. St. Clair, and Frank N. Keutsch

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Short summary
A new mid-infrared and ultra-portable formaldehyde (HCHO) sensor from Aeris Technologies is characterized and evaluated against well-established laser-induced fluorescence (LIF) instrumentation. The Aeris sensor displays linear behavior (R squared > 0.94) and shows good agreement with LIF instruments. While the compact sensor is not currently a replacement for the most sensitive research-grade instrumentation available, its sub-ppbv precision is sufficient for indoor and outdoor HCHO monitoring.