[The determination of resort and stress-areas by air pollution 2. communication: the evaluation of air pollution in spreadout areas, classification into stress-categories (authors transl)].

To qualify the air pollution by SO2 and particulate matter in wide spreaded areas a method for complex terrain was used in the Austrian Alps. The working model which was chosen is described in report 1. It is possible to classify the investigated area according to stress-categories by adjusting the data. For the qualification of results of measurements for dust fall the criterias were used according to KOFLER and BENGER. Two different situations were considered for the separation of limits for the stress-categories for SO2: areas which are polluted in first line by area sources, and areas which are polluted in first line by point sources.--The limits which were used in the study of Salzburg are introduced and discussed.--According to the method which is described above all municipalities of Tyrol and Salzburg were classified in stress-categories during to their air quality. The results are introduced.