Articles | Volume 15, issue 9
https://doi.org/10.5194/amt-15-2703-2022
https://doi.org/10.5194/amt-15-2703-2022
Research article
 | 
05 May 2022
Research article |  | 05 May 2022

Air pollution monitoring: development of ammonia (NH3) dynamic reference gas mixtures at nanomoles per mole levels to improve the lack of traceability of measurements

Tatiana Macé, Maitane Iturrate-Garcia, Céline Pascale, Bernhard Niederhauser, Sophie Vaslin-Reimann, and Christophe Sutour

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2022-6', Anonymous Referee #1, 04 Feb 2022
    • AC1: 'Reply on RC1', Tatiana Mace, 09 Mar 2022
  • RC2: 'Comment on amt-2022-6', Anonymous Referee #2, 17 Feb 2022
    • AC2: 'Reply on RC2', Tatiana Mace, 09 Mar 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Tatiana Mace on behalf of the Authors (03 Apr 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (04 Apr 2022) by Mingjin Tang
AR by Tatiana Mace on behalf of the Authors (05 Apr 2022)  Author's response    Manuscript
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Short summary
LNE developed, with the company 2M PROCESS, a gas reference generator to dynamically generate NH3 reference gas mixtures in the air at very low fractions between 1 and 400 nmol/mol. The procedure defined by LNE for calibrating NH3 analyzers used for monitoring air quality guarantees relative expanded uncertainties lower than 2 % for this measurement range. The results of a comparison organized between METAS and LNE allowed the validation of LNE's reference generator and calibration procedure.