ESTIMATION OF NITROGEN OXIDES POLLUTION USING GEOGRAPHICAL INFORMATION SYSTEM IN TURKEY

Abstract: Air pollution is become one of the most important problems we are facing and has a negative impact on the health of living things, it is the presence of solid, liquid and gaseous pollutants that change the composition of the air in the atmosphere, which may harm human life and ecological balance. In this study, nitrogen oxides pollution was investigated by using GIS technique, the air pollution data had been collected from 137 air monitoring stations during 2016, 2017 and 2018 in turkey. The spatial distribution maps of the annual average concentrations of nitrogen oxides were created with the help of spatial analyst tools, interpolation (inverse Distance Weighted method) within ArcGIS environment. The critical level of NOx for the protection of vegetation is 30 µg/m3 measured as an annual mean. The results indicated that most NOx concentrations, about 77.4%, 79% and 65.5% during 2016, 2017 and 2018 respectively, exceeding (30 ug/m³) the allowable limit value, where high levels of nitrogen oxides can make happen harm to the human respiratory tract and rise a person's susceptibility to, and the seriousness of, respiratory diseases and asthma.