Wildfires are a major source of gas‐phase ammonia (NH3) to the atmosphere. Quantifying
the evolution and fate of this NH3 is important to understanding the formation of secondary …

Abstract The Western Wildfire Experiment for Cloud Chemistry, Aerosol Absorption, and
Nitrogen (WE‐CAN) deployed the NSF/NCAR C‐130 aircraft in summer 2018 across the …

Reactive nitrogen (Nr) within smoke plumes plays important roles in the production of ozone,
the formation of secondary aerosols, and deposition of fixed N to ecosystems. The Western …

During the summer of 2012 the Hewlett Gulch and High Park wildfires burned an area of 400
km 2 northwest of Fort Collins, Colorado. These fires both came within 20 km of the …

Quantifying the variable impacts of wildfire smoke on ozone air quality is challenging. Here
we use airborne measurements from the 2018 Western Wildfire Experiment for Cloud …

Nitrous acid (HONO) mixing ratios measured in aged wildfire smoke plumes were higher
than expected from known homogeneous chemical reactions. In a representative smoke …

Abstract During the 2019 Fire Influence on Regional to Global Environments and Air Quality
(FIREX-AQ) study, the NASA DC-8 carried out in situ chemical measurements in smoke …

Satellite‐derived enhancement ratios of NH3 relative to CO column burden () in fires over
Alaska, the Amazon, and South Equatorial Africa are 35, 45, and 70% lower than the …

Anthropogenic emissions of NOx (nitric oxide (NO)+ nitrogen dioxide (NO2)), which in
sunlight can be oxidized to form nitric acid (HNO3), can react with ammonia (NH3) to form …

With large primary emissions of nitrogen-containing compounds, wildfires impact the
tropospheric oxidizing capacity, ozone (O3), and formation of secondary organic and …