Heterogeneous reaction of NO2 with atmospheric humic like substances is a potentially important source of volatile organic compounds, but the role of ubiquitous water-soluble aerosol components in this chemistry remains largely unexplored. Here, secondary electrospray ionization ultrahigh-resolution mass spectrometry is used to obtain real-time measurements of VOCs formed during the heterogeneous reaction of gas phase NO2 and a solution containing gallic acid as a model for moderately acidic aerosol particles.
- Pan Li
- Rachel Gemayel
- Sasho Gligorovski