CHANGES OF THE CORROSIVITY OF THE ATMOSPH ERE AGAINST METALLIC MATERIALS ON THE TERRITORY OF THE NEW FEDERAL COUNTRIES OF FRG SINCE 1989

The results of long-time examinations of the corrosivity of the atmosp here demonstrated that in the period from 1979 to 1989 on the territor y of the formerly GDR no changes could be established. The comparison of these results with those obtained at the same territory in the peri od from 1989 to 1994 shows a significant decrease of corrosivity again st metallic materials which is caused by a lower deposition rate of th e corrosion pollutant SO2. This positive development can be explained by an improvement of the situation of immission which occurs in sequen ce of changes of the industrial structure as well as by active measure s of environmental protection in the new countries of FRG after the po litical changes in the year 1989.