Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 13, issue 2
Articles | Volume 13, issue 2
https://doi.org/10.5194/amt-13-1001-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-13-1001-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 2
Research article
 | 
03 Mar 2020
Research article |  | 03 Mar 2020

Portable calibrator for NO based on the photolysis of N2O and a combined NO2∕NO∕O3 source for field calibrations of air pollution monitors

John W. Birks, Andrew A. Turnipseed, Peter C. Andersen, Craig J. Williford, Stanley Strunk, Brian Carpenter, and Christine A. Ennis

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Latest update: 23 Oct 2025
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Short summary
We describe a portable calibration source of nitric oxide (NO) based on the photolysis of nitrous oxide. Combining this with a previous photolytic ozone (O3) source yields a calibrator that produces known mixing ratios of NO, O3, and nitrogen dioxide (NO2); NO2 is produced by the reaction of NO with O3. This portable NO2/NO/O3 calibration source requires no external gas cylinders and can be used as a standard to calibrate O3 and NOx air pollution monitors in the field.
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