#air sample

Sampling of Bacteria and Fungi from Air

Air can be sampled for the presence of bacteria by their collection on culture medium using open Petri dishes containing a suitable medium. Now-a-days more accurate sampling can be done by use of a slit-sampler device that impinges air on agar surface. The apparatus consists of a mechanical pump, a chamber in which Petri dish of a nutrient agar is mechanically rotated under a slit of equal in…