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Excess Heat-Related Mortality in Micro-Urban Heat Islands: A Case-only Study in Barcelona

Background: Extreme heat events (EHE) are of increasing public health concern. In urban areas, micro-urban heat islands (MUHI) raise the possibility of increased mortality risk. This study identified MUHI in the city of Barcelona, Spain, using Landsat 7 thermal infrared imagery and overlaid them onto at-home deaths between 2000-2003, identified from a mortality registry and geocoded using the Google API. Hot days were defined as days with mean minimum temperatures above the 90th percentile of historic temperatures. Data were analyzed using a case-only design, with a logistic regression model adjusted for spatial autocorrelation. Results: In the period 2000-2003, at-home deaths in MUHI were associated with 15% greater odds of dying on hot days than at-home deaths outside of MUHI. Conclusions: MUHI were a risk factor for at-home deaths during EHE in the study period (2000-2003) in the city of Barcelona. In urban areas facing similar conditions (limited use of air-conditioning, among others), residents of MUHI may be at increased mortality risk during extreme heat events.

Autor / Author: Glutting, John-Paul
Institution / Institution: AIR Worldwide, Boston, USA
Seitenzahl / Pages: 10
Sprache / Language: Englisch
Veröffentlichung / Publication: GI_Forum 2013 – Creating the GISociety
Tagung / Conference: GI_Forum 2013 – Symposium and Exhibit GIScience & Technology/Learning with GI
Veranstaltungsort, -datum / Venue, Date: Salzburg, Austria 02-07-13 - 05-07-13
Schlüsselwörter (de):
Keywords (en): HealthGIS, climatology, spatial statistics
Paper review type: Full Paper Review
DOI:
886 -