[Quantitative studies of Salmonella in the sewage system of Kiel over a one-year period].

In the course of 1983 the contents of salmonellae was investigated as to quantity in the Kiel sewage water system by samples taken off-hand every fourteen days. Determining the numbers of salmonellae by mpn-method the canalisation of the west-side of Kiel fjord proved to be dominated by the abbatoir of Kiel-Wellsee. Additional evidence for that was given by the differing annual distribution of the numbers of salmonellae on the east-side of Kiel fjord. In total there was a remarkable reduction of salmonellae during the first and the fourth quarter of 1983 and a strong augmentation during summer. A reduction of salmonellae during the passage of the pump and pressure conduit-pipe, combining east- and west-side of Kiel fjord, could be seen.