ABSTRACT
This study was aimed at investigating the microbial load and the quality of indoor air Faith Mediplex Centre, Benin City, to ascertain their contribution to infection rate in the hospital. Air samples were assessed for three (3) months (June-August, 2015) using the settled plate methods. The study sites were divided into five (5) units; male medical ward, female medical ward, treatment room, operating theatre and outside the hospital gate. The result obtained reveal the isolation of six (6) bacterial isolates and four (4) fungal isolates which include Staphylococcus aureus, Staphylococcus epidermidis, Bacillus spp., Serrantia mercescen, Klebsiella spp., and
Micrococcus spp. for the bacterial isolates, while the four (4) fungal isolates include Aspergillus niger, Aspergillus flavus, Penicillium spp.and Candida albicans. The highest bacterial load and fungal load of 95.5cfu/min and 43.5cfu/min respectively were recorded outside the hospital gate, and the lowest bacterial and fungal load of 45cfu/min and 26.5cfu/mins respectively were recorded in the male medical ward for both bacterial and fungal. The most frequently occurring bacterial and fungal isolates were Staphylococcus aureus and Aspergillus niger respestively, occurring at 100%. All units that were included in the study were contaminated with bacteria and fungi. The bacteria and fungi concentrations of air obtained in this study might be potential risk factors for spread of nosocomial infection in the Hospital hence a high level of hygiene must be practiced by
both patients and health care providers.
CHAPTER ONE
1.0 INTRODUCTION
Air supplies us with oxygen which is essential for our bodies to live. Pure air is a mixture of gases that are invisible, colorless and odorless consisting of 78% nitrogen, 21% oxygen and other gases as well as varying amounts of water vapor (Murray et al., 1995). This pure air can become contaminated in various ways affecting humans, plants and animals. Air pollution is the introduction into the atmosphere of chemicals, particulate matter or biological materials that causes discomfort, disease or death to humans, damage to other living organisms including food crops. Both indoor air and outdoor air can become polluted by pesticides.
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