İzmir'in Aliağa ilçesi için temel kirletici kaynaklardan atılan atmosferik UOB emisyonlarının envanteri ve modellemesi

The objective of this study was to calculate the amount of NMVOCs coming from industrial facilities in the Aliağa and to estimate their effects in atmosphere under meteorological and topographical conditions of the region. With this aim, at the beginning, the required information of industrial facilities in Aliağa were collected; then NMVOC emissions were calculated by using these information, with the help of emission factors from literature and a software of USEPA, called TANKS. As a result of these calculations, it was approximately found that nine thousand seven hundred tons per year NMVOC emissions had been emitted to atmosphere from industrial facilities in Aliağa. The highest contributions to these emissions were coming from petrochemical, oil refining and liquid fuel storage and loading activities with thirtynine, thirtyfour and nine percentiles respectively. When the results were assessed according to emission types, it could be seen that the highest NMVOC emissions had come mainly from storage tanks (thirtyfour percentile), equipment leaks (twentyeight percentile), liquid loading (twenty percentile), process (seventeen percentile) and combustion (one percentile). As a second step, contributions of calculated emissions to air quality of the study area was estimated by using ISCST-Three dispersion model of USEPA. According to model results the highest pollution concentrations were found around the petrochemical, oil refinery and fuel loading and storage facilities; maximum values were about six hundred micrograms per cubic meter there. A significant NMVOC concentration dispersion could not be seen around the iron and steel plants because of low emission release from facilities.