MICOBIAL AIR QUALTY OF X-RAY ROOMS IN PRIVATE AND PUBLIC RADIOLOGY UNIT IN BENIN CITY, NIGERIAOSHOMA, C.E.., F.O. EHIGIMAMUSOE, A.O. EMOGHENE AND A.O. OSAYANDEAbstract The level of possible airborne bacterial and fungal flora of X-ray rooms in the Central Hospital and St. Bridget X-ray Center Limited in Benin City were investigated. The investigated areas were indoor and outdoor environment of the X-ray rooms. Samples were collected using the settled plate method for the enumeration of bacterial and fungal isolates for a period of five days. The highest bacterial population of 41.50cfu/m3 was recorded on day 2 in the outdoor of Central Hospital and the lowest was 2.00cfu/m3 on day 3 in the indoor of St Bridget X-ray Center Limited. Fungal population was smaller than the bacterial population. The highest fungal count been 17.50cfu/m3 on day 2 in the outdoor of Central Hospital. The bacterial frequent isolated from the X-ray rooms were Pseudomonas aeruginosa (39.35% and 37.29%), Staphylococcus aureus (17.66% and 15.25%) and Escherichia coli (11.39% and 5.08%) in Central Hospital and St. Bridget X-ray Center Limited respectively. The most frequently fungal isolate was Aspergillus niger ( 56.11% and 49.44%) in Central Hospital and St. Bridget X-ray Center Limited respectively. The result confirmed the degree of microbial contamination was high in the Central Hospital than St. Bridget X-ray Center Limited.
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