%0 Journal Article %T Measurements and correlations between several atmospheric parameters %A Kolar£¿ Predrag %A Filipovi£¿ Du£¿an %J Facta Universitatis Series : Physics, Chemistry and Technology %D 2008 %I University of Ni? %R 10.2298/fupct0801099k %X Diurnal atmospheric air-ion concentrations have been investigated at a site where synchronous aerosol, ozone, temperature and relative humidity measurements were also made. Air-ions, temperature and relative humidity were measured with Gerdien type Cylindrical Detector of Air-Ions (CDI-06) made in the Institute of Physics, Belgrade. Ozone and aerosols were measured with commercial instruments owned by the Institute of Public Health, Belgrade. Typical daily variations of the measured parameters were analyzed and showed that air-ions of both signs and ozone are positively correlated, while aerosols show strong inverse correlation with air-ions. Also, concentrations of air-ions and ozone are decreasing with temperature while aerosol concentration and humidity are increasing. These processes could be explained concerning properties of the specified parameters, measuring place properties and weather conditions. %K air-ions %K ozone %K radon %K aerosols %K troposphere %K temperature %K humidity %K gerdien %U http://www.doiserbia.nb.rs/img/doi/0354-4656/2008/0354-46560801099K.pdf