BACTERIOLOGICAL AIR QUALITY OF PUBLIC PRIMARY SCHOOLS IN CALABAR MUNICIPALITY
Abstract
Air quality is a global issue, particularly in developing countries and the declining air
quality in a deepening environmental unease. This study is aimed to analyze the
bacteriological air quality of public primary schools in Calabar Municipality. Using passive
sampling method, a total of twenty (20) nutrient agar plates were exposed in five (5)
selected primary schools in Calabar Municipality in the morning and afternoon respectively
using IMA 1/1/1. Results shows that the heterotrophic counts ranged from 43 CFU/m? to
212 CFU/m’. The contamination rate and percentage distribution accessed on the air
samples revealed that among the air isolates, Escherichia coli was the most frequently
occurring isolate with a percentage occurrence of 6 (35.2%) while Pseudomonas sp. 3
(17.6%) had the least percentage of occurrence. Therefore, this work shows that the
microbial air quality of the classrooms is heavily contaminated with bacteria.
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