Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Multifactorial airborne exposures and respiratory hospital admissions — The example of Santiago de Chile
Autor Franck, U.; Leitte, A.M.; Suppan, P.;
Journal / Serie Science of the Total Environment
Erscheinungsjahr 2015
Department STUDIEN;
Band/Volume 502
Sprache englisch;
POF III (gesamt) F11; T42;
Keywords Respiratory health effects; Hospital admissions; Airborne pollutants; Multiple exposures
UFZ Querschnittsthemen RU3;
Abstract

Our results provide evidence for respiratory effects of combined exposure to airborne pollutants in Santiago de Chile. Different pollutants account for varying adverse effects. Ozone was not found to be significantly associated with respiratory morbidity.

Background

High concentrations of various air pollutants have been associated with hospitalization due to development and exacerbation of respiratory diseases. The findings of different studies vary in effect strength and are sometimes inconsistent.

Objectives

We aimed to assess associations between airborne exposures by particulate matter as well as gaseous air pollutants and hospital admissions due to respiratory disease groups under the special orographic and meteorological conditions of Santiago de Chile.

Methods

The study was performed in the metropolitan area of Santiago de Chile during 2004–2007. We applied a time-stratified case-crossover analysis taking temporal variation, meteorological conditions and autocorrelation into account. We computed associations between daily ambient concentrations of carbon monoxide (CO), nitrogen dioxide (NO2), particulate matter (PM10 and PM2.5 — particulate matter with aerodynamic diameters less than 10 or 2.5 μm, respectively) or ozone (O3) and hospital admissions for respiratory illnesses.

Results

We found for CO, NO2, PM10 and PM2.5 adverse relationships to respiratory admissions while effect strength and lag depended on the pollutant and on the disease group. By trend, in 1-pollutant models most adverse pollutants were CO and PM10 followed by PM2.5, while in 2-pollutant models effects of NO2 persisted in most cases whereas other effects weakened and significant effects remain for PM2.5, only. In addition the strongest effects seemed to be immediate or with a delay of up to one day, but effects were found until day 7, too. Adverse effects of ozone could not be detected.

ID 15338
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=15338
Franck, U., Leitte, A.M., Suppan, P. (2015):
Multifactorial airborne exposures and respiratory hospital admissions — The example of Santiago de Chile
Sci. Total Environ. 502 , 114 - 121