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 …

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

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 …

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

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 …

Reactive nitrogen (N r, defined as all nitrogen-containing compounds except for N 2 and N 2
O) is one of the most important classes of compounds emitted from wildfire, as N r impacts …

A comprehensive group of reactive nitrogen species (NO, NO2, HNO3, HO2NO2, PANs,
alkyl nitrates, and aerosol‐NO3−) were measured over North America during July/August …

Wildfires are an important source of nitrous acid (HONO), a photolabile radical precursor, yet
in situ measurements and quantification of primary HONO emissions from open wildfires …

The relative importance of wildfire smoke for air quality over the western US is expected to
increase as the climate warms and anthropogenic emissions decline. We report on in situ …