The Spatial Relationship Between the Low-Income Housing Tax Credit Program and Industrial Air Pollution

Housing is a key social determinant of health, but programs that create affordable housing may unintentionally concentrate residents in neighborhoods with unhealthy exposures, such as air pollution. This article examines whether neighborhoods with Low-Income Housing Tax Credit (LIHTC) properties have higher levels of industrial air pollution than comparable neighborhoods without LIHTC properties. The findings indicate that, within a given metropolitan area, more polluted neighborhoods are more likely to contain LIHTC properties (odds ratio [OR] 1.08 for 10-percentile-point increase in industrial air pollution). However, that relationship is no longer significant after accounting for neighborhood racial composition and socioeconomic status and is reversed when accounting for housing market characteristics (OR 0.95 for 10-percentile-point increase in industrial air pollution in fully adjusted model). These results provide the first estimates of the association between LIHTC properties and industrial air pollution at the national level and suggest that the disproportionate burden of air pollution exposure among LIHTC residents may be mediated by neighborhood conditions such as poverty and rental market quality.