CHARACTERISTICS OF AIR POLLUTION IN THE CITY OF ERZURUM

It is known that air pollution known to have negative effects on environment and human health is an important factor on urban life. It is of vital importance in metropoles to determine emissions causing air pollutions and know the levels of air quality generated by these emissions. The present study was conducted in the city of Erzurum, the second most elevated city of Turkey. In order to determine changes in air pollution in the study area, measurements of (SO2), (NO2), (O-3), (H2S), (HF), (HCI), (BENZEN), (TOLUEN) and (KSILEN) concentrations were carried out in winter, spring, summer and autumn 2013 simultaneously at 18 points for 15 day periods. The values obtained from these measurements were analysed spatially and distribution maps were produced using Geographical Information System (GIS) based on a data base. From the results, urban air pollution distribution maps were also drawn. As for the results of the study, it was found from temporal and spatial distribution maps, representing air pollutant concentrations that there are significant differences between (SO2) and (NO2) concentrations depending on the local sources. It was also seen that one of the concentrations of the most important pollutant in the city, so2, exceeded limit values in winter and combustion periods, in the attraction centres of the city in and around Havuzbw and Yeniwhir Bridge. Furthermore, it was detected that an area so called Dag Mahallesi, where dense use of fossil fuels with low calorie and high sulphur rate and lower amount of natural gas are observed, is among the zones where pollution concentration is dense.