Articles | Volume 13, issue 7
Atmos. Meas. Tech., 13, 3923–3937, 2020
https://doi.org/10.5194/amt-13-3923-2020
Atmos. Meas. Tech., 13, 3923–3937, 2020
https://doi.org/10.5194/amt-13-3923-2020

Research article 21 Jul 2020

Research article | 21 Jul 2020

Atmospheric ammonia (NH3) over the Paris megacity: 9 years of total column observations from ground-based infrared remote sensing

Benoît Tournadre et al.

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Cited articles

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We present some results about ammonia pollution because NH3, mainly emitted by agricultural activities, is a precursor of fine particles. This study is based on the first multiyear time series (2009–2017) of atmospheric NH3 ground-based measurements over the Paris megacity. This pollutant varies seasonally by 2 orders of magnitude, especially in spring. We highlight that this kind of instrument could be easily installed and is very useful for analyzing NH3 in other megacities or source regions.