Rüden H, Thofern E, Mihm U
Z Erkr Atmungsorgane. 1978 Feb;152(2):152-8.
The concentration of microorganisms showed variations over a wide range. As factors influencing their viability meteorological parameters as relative humidity and temperature were recognized. Furthermore there are other antimicrobial compounds in the air. For their demonstration the aerosol was collected on air filters and then extracted in aqueous solutions. Their examinations showed that there are geographic and seasonal dependences of the antimicrobial activity of the aerosol.
