Air Pollution and Daily Mortality in Urban Katowice, 1994-95 and 2001-02
M. Kowalska1, J. E. Zejda1, M. Skrzypek2, L. Ośródka3, K. Klejnowski4, E. Krajny3, M. Wojtylak3, L. Hubicki2
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1 Department of Epidemiology, Medical University of Silesia, Medyków18, 40-752 Katowice, Poland
2 Department of Biostatistics, Chair of Public Health, Medical University of Silesia, Katowice, Poland
3 Institute of Meteorology and Water Management, Katowice, Poland
4 Polish Academy of Science, Institute of Environmental Engineering, Zabrze, Poland
Pol. J. Environ. Stud. 2008;17(5):733–738
A permanent improvement in ambient air quality in the Urban Area of Katowice over recent years could have resulted in a decreased risk of air pollution-related daily mortality. Our study investigates the risk associated with the levels of PM10 and SO2, obtained seven years apart (time-series analyses in 1994-95 and 2001- 02). For both periods the acute mortality risk depends more on SO2 than on PM10 levels. The permanent improvement in ambient air pollution was associated with a decrease in relative risk of mortality, only for SO2 levels. For example, the magnitude of the total mortality relative risk related to a 10 µg/m3 increase in pollutant’s concentration (a 3-day moving average) was for SO2 1.019 (1.015-1.023) in 1994-95 and 1.012 (1.005- 1.019) in 2001-02, and for PM10 1.007 (1.004-1.011) in 1994-95 and 1.007 (1.003-1.011) in 2001-02.