Studies on environmental monitoring of microbial air flora in the hospitals

Abstract

Indoor air quality is an important determinant of human health and comfort. Airborne bacteria can also contributes to indoor air pollution. The aerobiological survey was carried out in indoor and outdoor environment at 76 hospitals in Amravati. The total 670 air samples were analyzed from indoor and outdoor environment of hospitals by using sedimentation method. The most prominent bacteria isolated were Staphylococcus aureus (29.59%), Pseudomonas aeruginosa (19.72%). The Staphylococcus saprophyticus, Proteus mirabilis, Escherichia coli and Enterobacter aerogenes were in the range of 2-6%. The rest of bacterial pathogens Pseudomonas fluorescence, Proteus vulgaris, Morganella morganii, Citrobacter freundii, Serratia marcescens and Klebsiella pneumoniae were below 1%. Out of all the hospital examined, maternity and children hospitals showed highest (50.68%) bacterial isolates, which were the highest among all types of hospitals.