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BRIEF REPORT
Year : 2015  |  Volume : 4  |  Issue : 1  |  Page : 48

Detection of Legionella spp. by a nested-PCR assay in air samples of a wastewater treatment plant and downwind distances in Isfahan


1 Department of Environmental Health Engineering and Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
2 Department of Statistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran

Correspondence Address:
Mahnaz Nikaeen
Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Hezar Jerib Avenue, Isfahan
Iran
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Source of Support: This research was conducted with funding from the Vice Chancellery for Research at the Isfahan University of Medical Sciences (Grant No. 391081), as a part of a M.Sc dissertation, Conflict of Interest: None


DOI: 10.4103/2277-9175.151540

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Background: Wastewater contains a variety of pathogens and bio -aerosols generated during the wastewater treatment process, which could be a potential health risk for exposed individuals. This study was carried out to detect Legionella spp. in the bio -aerosols generated from different processes of a wastewater treatment plant (WWTP) in Isfahan, Iran, and the downwind distances. Materials and Methods: A total of 54 air samples were collected and analyzed for the presence of Legionella spp. by a nested- polymerase chain reaction (PCR) assay. A liquid impingement biosampler was used to capture bio -aerosols. The weather conditions were also recorded. Results: Legionella were detected in 6% of the samples, including air samples above the aeration tank (1/9), belt filter press (1/9), and 250 m downwind (1/9). Conclusion: The result of this study revealed the presence of Legionella spp. in air samples of a WWTP and downwind distance, which consequently represent a potential health risk to the exposed individuals.


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