Hono Decomposition On Borosilicate Glass Surfaces: Implications For Environmental Chamber Studies And Field Experiments

Nitrous acid (HONO) is the major source of OH in polluted urban atmospheres, so an understanding of its formation and loss processes both in urban atmospheres and in laboratory systems is important. This paper reports on a comprehensive set of studies of the decay of HONO and the formation of gas phase products over a range of initial HONO concentrations (0.1-11ppm) at 1 atm pressure in N2 at 296K and 0, 20, and 50% relative humidity, respectively.