Attributive proportion; Morbidity; Mortality; PM10 concentrations; Smog episode

Současná úroveň znečištění ovzduší prachovými částicemi PM 10 je spojována se zvýšením úmrtnosti a nemocnosti. Město Ostrava je jednou z oblastí se zhoršenou kvalitou ovzduší a s častými smogovými situacemi v zimních měsících.

The current level of PM10 pollution is associated with an increase in mortality and morbidity. The city Ostrava is one of the areas with deteriorated air quality and with occurrence of smog situations during winter months. The method of calculation of attributive proportions recommended by the WHO was used for evaluating the theoretical impact of the 2010 smog episode on mortality and morbidity. Attributive proportions express the proportion of cases due to the increase of short-term PM10 concentrations. The 2010 smog situation was compared with the smog episode in 2009. Results showed an almost twice as high estimated proportion of cases associated with the level of PM10 pollution during the smog situation in Ostrava in 2010 as compared with the smog situation in 2009.