We solicit abstracts on modeling, field, and lab work that help characterize atmospheric reactivity from OH reactivity (OHR) to novel volatile organic compounds (VOCs) and CO. OH concentrations dictate Earth’s atmospheric oxidation capacity, and the OH reaction frequency (or OHR) controls the lifetime of trace gases with subsequent air pollution and climate impacts. Significant advances in instrumentation and computational techniques in the last two decades have allowed the community to better constrain OHR and VOCs, from a variety of sources such as biogenic, fire, remote ocean, and anthropogenic VOCs ranging from Volatile Chemical Products (VCPs) in personal care products to oil and gas. Recent work has also applied the OHR approach to indoor air quality and human emissions. However, our understanding of VOC emissions and their impact on OHR remains poor. We aim to bring together many of these distinct research endeavors towards a broader push to understand atmospheric reactivity.

• EGU: European Geosciences Union -