Journal article

Daytime HONO, NO2 and aerosol distributions from MAX-DOAS observations in Melbourne

Robert G Ryan, Steve Rhodes, Matthew Tully, Stephen Wilson, Nicholas Jones, Udo Frieß, Robyn Schofield

Copernicus GmbH

Abstract

<p><strong>Abstract.</strong> Nitrogen oxides produced by high temperature combustion are prevalent in urban environments and toxic, contributing to a significant health burden. The chemistry of nitrogen oxides such as NO<sub>2</sub> and HONO in pollution are important for hydroxyl radical production and overall oxidative capacity in urban environments, however current mechanisms cannot explain high daytime levels of HONO observed in many urban and rural locations around the world. Here we present HONO, NO<sub>2</sub> and aerosol extinction vertical distributions retrieved from MAX-DOAS measurements in suburban Melbourne, which are the first MAX-DOAS..

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University of Melbourne Researchers