Ventilation in public housing : implications for indoor nitrogen dioxide concentrations

Associations between NO2 exposure and various respiratory conditions and symptoms have already been reported. The objective of that study was to characterize indoor air quality in Boston public housing apartments, many of which were homes of asthmatic children, in that aim the distribution of AER (air exchange rates) was examined and compared to those specified by ASHRAE in their new residential standard. Multivariate models were used to examine the relationship between AERs and indoor NO2 levels.