Aliağa çevresindeki ozon, azot dioksit, ve sülfür dioksit kirliliğinin pasif örnekleme ile tespiti

In this study, the atmospheric concentrations of O3, NO2, and SO2 were measured using passive samplers at 49 different sites in the region. Measured levels for the pollutants were generally lower than the current long term national limits for human health protection. But, when the data set was compared with the target limits, they were exceeded those long term limit values at some sites and periods, especially for SO2 and O3.Generally, background and rural sites had the lowest SO2 and NO2 levels in air during both seasons, while in summer period the residential areas had also low SO2 levels. The SO2 distribution map showed that the petroleum refinery and the petrochemical complex are the most important SO2 sources in Aliağa air. High SO2 levels were also measured at the urban and residential areas during winter, probably as a result of residential heating emissions and uncontrolled combustion. For NO2, İzmir-Çanakkale highway, Yeni Foça road, Aliağa town, petroleum refinery and petrochemical industry with high NO2 levels are the major sources in the region.Summertime O3 levels were generally higher than the wintertime ones probably because of the increased solar radiation in summer. The sampling sites on the highway, around the industries and town center had the lowest levels while high O3 concentrations were generally observed at the background and rural sites.