title: Local Variability in the Impacts of Residential Particulate Matter and Pest Exposure on Children's Wheezing Severity: A Geographically Weighted Regression Analysis of Environmental Health Justice.
abstract: Two assumptions have underpinned environmental justice over the past several decades: 1) uneven environmental exposures yield correspondingly unequal health impacts and 2) these effects are stable across space. To test these assumptions, relationships for residential pest and PM2.5exposures with children's wheezing severity are examined using global (ordinary least squares) and local (geographically weighted regression [GWR]) models using cross-sectional observational survey data from El Paso (Texas) children. In the global model, having pests and higher levels of PM2.5were weakly associated with greater wheezing severity. The local model reveals two types of asthmogenic socio-environments where environmental exposures more powerfully predict greater wheezing severity. The first is a lower-income context where children are disproportionately exposed to pests and PM2.5and the second is a higher-income socio-environment where children are exposed to lower levels of PM2.5, yet PM2.5is counterintuitively associated with more severe wheezing. Findings demonstrate that GWR is a powerful tool for understanding relationships between environmental conditions, social characteristics and health inequalities.
authors.affiliation: Department of Sociology and Anthropology, University of Texas at El Paso, 500 W. University Ave. El Paso TX 79968, USA, segrineski@utep.edu , 915-747-8471 (tele), 915-747-5505 (fax).
authors.forename: Sara E
authors.initials: SE
authors.lastname: Grineski
authors.affiliation: Department of Sociology and Anthropology, University of Texas at El Paso, 500 W. University Ave. El Paso TX 79968, USA.
authors.forename: Timothy W
authors.initials: TW
authors.lastname: Collins
authors.affiliation: Center for Environmental Resource Management & School of Nursing, University of Texas at El Paso, 500 W. University Ave. El Paso TX 79968, USA.
authors.forename: Hector A
authors.initials: HA
authors.lastname: Olvera
keywords: El Paso; Environmental health justice; Texas; asthma; geographically weighted regression; health disparities