Abstract
Bacteria are commonly found in soil and may cause health risks to children playing in the outdoor playgrounds with soil, mainly via hand to mouth and pica behaviors. Our study concerned with the risk analysis of infection of a child playing in urban playgrounds in the cities of Patras and Pyrgos in Greece. The presence of Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa were analyzed in soil samples of these playgrounds. A standardized questionnaire depicted the individual characteristics of each playground and recorded risk factors in playgrounds related to bacterial infections. Furthermore, the distributions of E. coli, S. aureus and P. aeruginosa were analyzed in soil samples. Our results were investigated with beta-Poisson models using the Quantitative Microbial Risk Assessment wiki models to evaluate and construct a probability model of infection for each of these bacteria. The risk of infection was higher during the wet period. The risk was higher for P. aeruginosa infection compared to E. coli and S. aureus ones. Nevertheless, the bacterial concentration was higher for E. coli than P. aeruginosa and S. aureus in both wet and dry periods. Our results provide new data that could contribute in assessing the risks associated with playgrounds where children can unaware play in urban parks.
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