Pollution Levels And The Effect Of Air Pollution
On Asthma Hospitalisations Modified By
Synoptic Weather Type And Aeroallergens
Author(s)
S. Cakmak & C. Hebbern
Abstract
Pollution levels and the effect of air pollution on human health can be modified
by synoptic weather type and aeroallergens. We investigated the effect
modification of aeroallergens on the association between CO, O3, NO2, SO2,
PM10 and PM2.5 and asthma hospitalisation rates in seven synoptic weather types
using single air pollutant models, adjusted for the effect of aeroallergens and
stratified by synoptic weather type, with pooled relative risk estimates for asthma
hospitalisation in ten Canadian cities. Aeroallergens significantly modified the
relative risk in 19 pollutant-weather type combinations, reducing the size and
variance for each single pollutant model. Aeroallergens did not significantly
modify relative risk for any pollutant in the DT or MT weather types, or for PM10
in any weather type. There is an interactive effect between aeroallergens and CO,
O3, NO2, SO2, and PM2.5, on asthma hospitalisations that differs under specific
synoptic weather types.
Keywords
asthma, hospitalisation, aeroallergens, allergy, air pollution,
epidemiology, SSC, spatial synoptic classification.
Related Book
Other papers in this volume
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