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|Title:||Influence of air quality on the composition of microbial pathogens in fresh rainwater|
de la Cruz, A.A.
|Citation:||Kaushik, R., Balasubramanian, R., de la Cruz, A.A. (2012-04). Influence of air quality on the composition of microbial pathogens in fresh rainwater. Applied and Environmental Microbiology 78 (8) : 2813-2818. ScholarBank@NUS Repository.|
|Abstract:||In this study, the microbiological quality of fresh rainwater was assessed from 50 rain events under tropical weather conditions for a year. The levels of four major opportunistic waterborne pathogens, namely, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Aeromonas hydrophila, in rainwater samples were quantified by using a robust and sensitive quantitative PCR (qPCR) method. Of the 50 rainwater samples, 25 were found to be positive for at least one pathogen: 21 for E. coli, 16 for P. aeruginosa, 6 for K. pneumoniae, and 1 for A. hydrophila. In addition to the microbiological assessment of rainwater samples, we also studied the influence of prevailing air quality on the microbial quality of rainwater over the sampling period. A significant change in the diversity and relative abundance of the basic microbial indicator organisms in rainwater was observed during a major regional air pollution episode in Southeast Asia due to biomass-burning emissions. © 2012, American Society for Microbiology.|
|Source Title:||Applied and Environmental Microbiology|
|Appears in Collections:||Staff Publications|
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