12 th International Research/Expert Conference «Trends in the Development of Machinery and Associated Technology» TMT 2008, Istanbul, Turkey, 26 - 30 August, 2008 AIR POLLUTION RELATED DISEASES IN PRESCHOOL CHILDREN IN THE AREA OF ZENICA CITY Smajil Durmisevic Cantonal Public Health Institute Zenica Fra Ivana Jukica 2, Zenica Bosnia and Herzegovina Jasminka Durmisevic-Serdarevic Health Centre Zenica Fra Ivana Jukica 2, Zenica Bosnia and Herzegovina Suad Sivic Cantonal Public Health Institute Zenica Fra Ivana Jukica 2, Zenica Bosnia and Herzegovina Senad Huseinagic Cantonal Public Health Institute Zenica Fra Ivana Jukica 2, Zenica Bosnia and Herzegovina Jasmin Durmisevic student of medicine Medical Faculty of Sarajevo ABSTRACT Introduction: Environmental features of the city of Zenica cause an increased risk of air pollution- related diseases in preschool children. Goal: The purpose of this paper is to examine a correlation between the air pollution-related diseases in preschool children and the average values of monthly concentration of sulfur dioxide (SO 2 ) and total range of floating particles in the area of the city of Zenica in the years 2000 and 2007. Methods: Authors have examined, taking into account the number of initial medical visits to primary health centers, the correlation between the air pollution-related diseases and average values of monthly concentration of sulfur dioxide (SO 2 ) and the total range of floating particles in the year 2000 and 2007 prevailing in the area of the city of Zenica. Results: With the age group under examination, the statistical method produced a correlation level for the number of initial medical visits to primary health centers made as a result of air pollution-related diseases and average monthly concentration of SO 2 0.971, as well as the total range of floating particles of 0.891. The increase in number of initial visits was observed relative to linear increase in SO 2 concentration and total floating particles, statistically presented as follows: O<R<+1, with significant statistical variance (p<0,0001) and increased relative risk of disease occurrence (RR=1.3609), with cumulative incidence (CI) of 1.2998 – 1.4249. Conclusion: In 2007, children between 1 and 6 years of age in the area of the city of Zenica were exposed to increased risk of air 1033