Journal
ENVIRONMENTAL MONITORING AND ASSESSMENT
Volume 162, Issue 1-4, Pages 113-121Publisher
SPRINGER
DOI: 10.1007/s10661-009-0780-5
Keywords
Airborne pollutants; Cardiorespiratory diseases; Epidemiological trends; Hospital admissions; Temperature-humidity; Urban environments
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This study addresses the significant effects of both well-known contaminants (particles, gases) and less-studied variables (temperature, humidity) on serious, if relatively common, respiratory and circulatory diseases. The area of study is Lisbon, Portugal, and time series of health outcome (daily admissions in 12 hospitals) and environmental data (daily averages of air temperature, relative humidity, PM10, SO2, NO, NO2, CO, and O-3) have been gathered for 1999-2004 to ascertain (1) whether concentrations of air pollutants and levels of temperature and humidity do interfere on human health, as gauged by hospital admissions due to respiratory and circulatory ailments; and (2) whether there is an effect of population age in such admissions. In general terms, statistically significant (p < 0.001) correlations were found between hospital admissions and temperature, humidity, PM10, and all gaseous pollutants except CO and NO. Age appears to influence respiratory conditions in association with temperature, whereas, for circulatory conditions, such an influence likely involves temperature as well as the gaseous pollutants NO2 and SO2.
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