The sources of air pollution are classified as point, line and surface
sources. Motor vehicle pollution is modelled as a line source. Hither
to, studies of air pollution have emphasized surface pollution caused
by fossil fuel burning for the purposes of obtaining energy and heatin
g, and motor vehicle pollution studies are usually concentrated on lan
d vehicles. In this study, the effect of aircraft emissions on the env
ironment is considered from two different aspects: during cruising, an
d during landing, take-off and the taxiing. Air pollution caused by ai
rcraft is also estimated for the year 2000, and the pollution caused d
uring cruising is given globally. The contribution of the Istanbul Ata
turk airport to surface air pollution is estimated. In addition, the p
ollution caused by motor vehicles and aircraft are compared, and the v
ariation and the spread of the pollution under certain meteorological
conditions are studied.