Air Pollution Exposure and Lung Function in Children: A Micro-Epidemiological Study
In this paper, concentration-response functions are derived for the effects of daily average total suspended particulates (TSP), respirable particulates (RSP), sulfate, and nitrate concentrations on pulmonary function scores (FEV) for elementary school children in Birmingham, Alabama. Researchers collected information on demographic, socioeconomic, health-related questions, and indoor heating sources to use as explanatory variables. Functions were also derived for subpopulations of normal, asymptomatic, and symptomatic children. The paper discusses the importance of the variables on explaining pulmonary scores and finds that demographic, respiratory health condition, and housing variables account for the majority of variation. However, TSP and sulfate pollution have negative and significant effects on FEV. Differences in the effects of exposure on sub-populations were tested as well as alternative nonlinear specifications.
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