Proton-transfer-reaction mass spectrometry (PTR-MS) has been widely used to study the
emissions, distributions, and chemical evolution of volatile organic compounds (VOCs) in …

Decades of air quality improvements have substantially reduced the motor vehicle
emissions of volatile organic compounds (VOCs). Today, volatile chemical products (VCPs) …

Despite decades of declining air pollution, urban US areas are still affected by summertime
ozone and wintertime particulate matter exceedance events. Volatile organic compounds …

Wildfires emit significant amounts of pollutants that degrade air quality. Plumes from three
wildfires in the western US were measured from aircraft during the Studies of Emissions and …

With traffic emissions of volatile organic compounds (VOCs) decreasing rapidly over the last
decades, the contributions of the emissions from other source categories, such as volatile …

Isocyanic acid (HNCO) has recently been identified in ambient air at potentially concerning
concentrations for human health. Since its first atmospheric detection, significant progress …

Brown carbon (BrC) plays an essential impact on radiative forcing due to its ability to absorb
sunlight. In this study, the optical properties and molecular characteristics of water-soluble …

Biomass burning is a large source of volatile organic compounds (VOCs) and many other
trace species to the atmosphere, which can act as precursors to secondary pollutants such …

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 …

Biomass burning particulate matter (BBPM) affects regional air quality and global climate,
with impacts expected to continue to grow over the coming years. We show that studies of …