Bacteriological Evaluation of Nigerian Paper Currency (Naira Notes) Circulating In Owerri, Imo State, Nigeria
Journal of Applied Life Sciences International,
Generally, the contamination of currencies with various microbial species is increasingly being reported. This usually results from improper handling during exchange of goods, services and certain environmental factors. This study on the bacteriological evaluation of the Nigerian paper currency (Naira notes) circulating in Owerri, Imo State was carried out with the aim of evaluating the prevalence of bacteria contaminants of Nigerian currency notes in circulation. A total of One hundred and twenty (120) Naira notes of ₦5, ₦10, ₦20, ₦50, ₦100, ₦200, ₦500 and ₦1000 denominations were collected in separate polythene bags from traders, students, hawkers, meat sellers, food vendors, taxi drivers, keke drivers and banks for the study. The notes were chosen on the basis of denominations and physical appearance (Mint, Neat, dirty, very dirty and mutilated). Each of the notes was inserted into a sterile bottle containing 10mls of distilled water and allowed to stand for twenty minutes. Double dilution of the solution was inoculated into Nutrient agar, MacConkey agar, Mannitol Salt agar and Salmonella and Shigella agar for viable counts. Further identification of the bacteria was carried out using standard morphological and biochemical tests. The data from this study were subjected to statistical analysis using percentage, charts and anova. The result from the analysis showed that, 82 (68.33%) out of the 120 samples evaluated were contaminated. The study showed that dirty naira notes are potential routes for bacteriological disease transmission to man during handling and constitutes a public health risk. Therefore, the appropriate authorities should embark on public enlightenment campaign targeted at the handlers and associated risks.
- Paper currency
- naira notes
How to Cite
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