Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 14
Articles | Volume 19, issue 14
https://doi.org/10.5194/amt-19-4989-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-4989-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 14
Research article
 | 
31 Jul 2026
Research article |  | 31 Jul 2026

Performance and methodological evaluation of a quantum-cascade-laser photoacoustic aerodynamic gradient system for field-scale NH3 flux measurements

János Fekete, Zoltán Bozóki, Csilla Gombi, László Horváth, Zoltán Nagy, Krisztina Pintér, Tamás Weidinger, Anna Szabó, and Helga Huszár

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Short summary
Agricultural fertilizers can release ammonia into the air, reducing fertilizer efficiency and affecting air quality. We measured ammonia exchange between soil, plants and the atmosphere in a crop field after fertilizer application. Emissions were stronger during the day and weaker at night. Total nitrogen loss was about four percent of the applied fertilizer.
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