Ensemble-based source apportionment of fine particulate matter and emergency department visits for pediatric asthma.

ABSTRACT: Epidemiologic studies utilizing source apportionment (SA) of fine particulate matter have shown that particles from certain sources might be more detrimental to health than others; however, it is difficult to quantify the uncertainty associated with a given SA approach. In the present study, we examined associations between source contributions of fine particulate matter and emergency department visits for pediatric asthma in Atlanta, Georgia (2002-2010) using a novel ensemble-based SA technique. Six daily source contributions from 4 SA approaches were combined into an ensemble source contribution. To better account for exposure uncertainty, 10 source profiles were sampled from their posterior distributions, resulting in 10 time series with daily SA concentrations. For each of these time s

SUBMITTER: Gass K 

PROVIDER: S-EPMC4447814 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature