Lancaster EPrints

Air pollution and mortality in Philadelphia, 1974-1988.

Kelsall, J. E. and Samet, J. M. and Zeger, S. L. and Xu, J. (1997) Air pollution and mortality in Philadelphia, 1974-1988. American Journal of Epidemiology, 146 (9). pp. 750-762. ISSN 1476-6256

Full text not available from this repository.

Abstract

Analyses involving data from many locations throughout the world have now been conducted to assess the association between air pollution and mortality. To date, six independent analyses of mortality data for Philadelphia, Pennsylvania, have been reported. In this new analysis of Philadelphia data for 1974–1988, Poisson regression models were developed to estimate the increased risk of daily mortality associated with air pollution while controlling for longer-term time trends and season and for weather. Model development was based on prior understanding of the effects of these factors on mortality and on consideration of model fit. The authors found moderate correlations of daily concentrations of total suspended particles (TSP), sulfur dioxide (SO2), nitrogen dioxide (NO2), and carbon monoxide (CO), and only slight correlations of ozone (O3) with other pollutants. When included individually in the model, the means of current and previous days' levels of TSP, SO2 and O3 had statistically significant effects on total mortality; pollutant increases of an interquartile range (34.5 µg/m3 12.9 ppb, and 20.2 ppb, respectively) were associated with increases in mortality of around 1% for TSP and SO2 and of around 2% for O3. The effects of TSP and SO2 were diminished when both pollutants were simultaneously included in the model, whether pairwise or in the full multi-pollutant model. These analyses confirm the association between TSP and mortality found in previous studies in Philadelphia and show that the association is robust to consideration of other pollutants in the model.

Item Type: Article
Journal or Publication Title: American Journal of Epidemiology
Uncontrolled Keywords: air pollution ; mortality ; ozone ; weather
Subjects: Q Science > QA Mathematics
Departments: Faculty of Science and Technology > Mathematics and Statistics
Faculty of Arts & Social Sciences > Linguistics & English Language
ID Code: 19504
Deposited By: ep_ss_importer
Deposited On: 12 Nov 2008 10:06
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:31
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/19504

Actions (login required)

View Item