Articles | Volume 14, issue 8
Atmos. Meas. Tech., 14, 5701–5715, 2021
https://doi.org/10.5194/amt-14-5701-2021

Special issue: Simulation chambers as tools in atmospheric research (AMT/ACP/GMD...

Atmos. Meas. Tech., 14, 5701–5715, 2021
https://doi.org/10.5194/amt-14-5701-2021

Research article 20 Aug 2021

Research article | 20 Aug 2021

Intercomparison of IBBCEAS, NitroMAC and FTIR analyses for HONO, NO2 and CH2O measurements during the reaction of NO2 with H2O vapour in the simulation chamber CESAM

Hongming Yi et al.

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Short summary
HONO and NO2 play a crucial role in the atmospheric oxidation capacity that affects the regional air quality and global climate. Accurate measurements of HONO are challenging due to the drawback of existing detection methods. Calibration-free high-sensitivity direct, simultaneous measurements of NO2, HONO and CH2O with UV-IBBCEAS provide accurate and fast quantitative analysis of their concentration variation within their lifetime by intercomparison with NOx, FTIR and NitroMAC sensors.