Gas-Phase Nitrous Acid (HONO) Is Controlled by Surface Interactions of Adsorbed Nitrite (NO<sub>2</sub><sup>–</sup>) on Common Indoor Material Surfaces
Shubhrangshu Pandit, Vicki H. Grassian
Abstract
and nitrate photochemistry, the amount of HONO produced depends on the material surface. For zeolite and cement, little HONO is produced, whereas HONO is the major product from kaolinite and painted wall surfaces. An important result of this study is that surface interactions of adsorbed nitrite are key to HONO formation, and the stronger the interaction of nitrite with the surface, the less gas-phase HONO produced.
Topics & Concepts
Nitrous acidAdsorptionNitriteNitrous oxideGas phaseChemistryPhase (matter)Environmental chemistryInorganic chemistryOrganic chemistryNitrateAir Quality Monitoring and Forecasting