[House call activity by emergency medical services and unusual emission conditions].

Some 65,000 requests for visits by Emergency Aid (SMH) at First-Aid Station Berlin (capital of the GDR) had been noticed in winter 1981/82. About 25,000 requests for visits were only because of cardio-circulatory and respiratory system-symptoms. The number of these requests for visits increased continuously from January to March, especially during days of epidemic situations (acute respiratory diseases--ARD), but also after a period of time with high temperature, humidity and after föhn-weather. Anyfurther increase of requests for visits by Emergency Aid during the extraordinary immission situation (Smog) in January 1982 were not reported.