To examine the effect on hospital presentations for asthma of brief exposures to sulphur dioxide (SO2) (within the range 0-8700 mug/m3) emanating from two point sources in a remote rural city of 25 000 people.
Methods-A time series analysis of SO2 concentrations and hospital presentations for asthma was undertaken at Mount Isa where SO2is released into the atmosphere by a copper smelter and a lead smelter.
The study examined 5 minute block mean SO2 concentrations and daily hospital presentations for asthma, wheeze, or shortness of breath.
Generalised linear models and generalised additive models based on a Poisson distribution were applied.
There was no evidence of any positive relation between peak SO2 concentrations and hospital presentations or admissions for asthma, wheeze, or shortness of breath.
Conclusion-Brief exposures to high concentrations of SO2 emanating from point sources at Mount Isa do not cause sufficiently serious symptoms in asthmatic people to require presentation to hospital.
Mots-clés Pascal : Exposition, Environnement, Soufre dioxyde, Courte durée, Asthme, Homme, Zone rurale, Recherche rétrospective, Consultation hospitalière, Modèle régression, Teneur air ambiant, Pollution air, Appareil respiratoire pathologie, Bronchopneumopathie obstructive
Mots-clés Pascal anglais : Exposure, Environment, Sulfur dioxide, Short lasting, Asthma, Human, Rural area, Retrospective searching, Hospital consultation, Regression model, Ambient air concentration, Air pollution, Respiratory disease, Obstructive pulmonary disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0185825
Code Inist : 002B03M02. Création : 16/11/1999.