Modeling the role of HONO in the plume gas phase and aerosol chemistry of boreal forest biomass burning emissions during the summer 2009 ARCTAS campaign

Approximately 3-20% of NOy in the flame front of biomass burning, as determined from field and lab studies, is HONO. Because HONO is readily photolyzed, it serves as a short-term reservoir for HOx and NOx. As the HONO is lost to photolysis, it affects NOy partitioning as well as O3 formation/loss. Using data from the NASA DC-8 payload during the summer 2008 ARCTAS campaign for model initialization, we have previously implemented a gas phase chemical model to evaluate the impact of HONO on the chemical evolution of one plume on 1 July 2008. We present results incorporating the ARCTAS particle phase data with the Aerosol Simulation Program and a Lagrangian parcel model to more completely represent the plume evolution.