(Journal of Exposure Science & Environmental Epidemiology) The aim of the study was to assess the relationship between indoor and outdoor air pollution exposure patterns and asthma within low socioeconomic status urban communities - data on indoor and outdoor concentrations of nitrogen dioxide (NO2) and fine particulate matter (PM2.5) from 43 homes in Boston over multiple seasons from 2003 to 2005. The results showed that cooking time, gas stove usage, occupant density, and humidifiers were important contributors to indoor levels of pollutants. The study concluded that indoor sources may have a more pronounced effect in high-density multi-unit dwellings.
Baxter, L., Clougherty, J., Laden, F. et al. (2007) Predictors of concentrations of nitrogen dioxide, fine particulate matter, and particle constituents inside of lower socioeconomic status urban homes. J Expo Sci Environ Epidemiol 17, 433–444. https://doi.org/10.1038/sj.jes.7500532