PRODUCTION AND LEVELS OF SELECTED INDOOR RADICALS: A MODELING ASSESSMENT

摘要

Indoor radical concentrations were estimated using a new indoor air quality model. Model results indicate that typical indoor hydroxyl, hydroperoxy, and methylperoxy radical concentrations are lower than typical urban outdoor daytime levels during summertime conditions, but can be similar to or greater than typical outdoor nighttime levels. Predicted indoor nitrate concentrations are less than typical outdoor daytime levels, but can be similar to typical nighttime levels at high air exchange rates. Indoor hydroxyl and methylperoxy radical concentrations are predicted to increase with indoor alkene eission rates. Indoor methylperoxy radical concentrations can be similar to typical outdoor daytime levels at higher indoor alkene emission rates. Indoor temperature has moderate impacts on indoor hydroxyl and methylperoxy radical concentrations, and significant effects on indoor hydroperoxy and nitrate radical concentrations.