Implications of faecal indicator bacteria for the microbiological assessment of roof-harvested rainwater quality in southeast Queensland, Australia

Canadian Journal of Microbiology
W AhmedT Gardner

Abstract

The study aimed to evaluate the suitability of Escherichia coli, enterococci, and Clostridium perfringens for assessing the microbiological quality of roof-harvested rainwater and assessing whether the concentrations of these faecal indicators can be used to predict the presence or absence of specific zoonotic bacterial or protozoan pathogens. From a total of 100 samples tested, 58%, 83%, and 46% of samples were found to be positive for, respectively, E. coli, enterococci, and Clostridium perfringens spores, as determined by traditional culture-based methods. Additionally, in the samples tested, 7%, 19%, 1%, 8%, 17%, and 15% were PCR positive for Aeromonas hydrophila lip, Campylobacter coli ceuE, Campylobacter jejuni mapA, Legionella pneumophila mip, Salmonella invA, and Giardia lamblia beta-giardin genes, respectively. However, none of the samples was positive for E. coli O157 lipopolysaccharide, verocytotoxin 1, and verocytotoxin 2 and Cryptosporidium parvum oocyst wall protein genes. The presence or absence of these potential pathogens did not correlate with any of the faecal indicator bacterial concentrations as determined by a binary logistic regression model. The roof-harvested rainwater samples tested in this study appea...Continue Reading

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Citations

Jul 29, 2015·The Science of the Total Environment·P H DobrowskyW Khan
Jan 17, 2012·Environmental Pollution·Ju Young LeeMooyoung Han
Mar 31, 2017·Environmental Science and Pollution Research International·Marek KirsWarish Ahmed
Apr 10, 2016·Applied and Environmental Microbiology·Nikea UlrichRegina Lamendella
Jul 1, 2017·Water Environment Research : a Research Publication of the Water Environment Federation·Lizyben ChidambaCornelius Carlos Bezuidenhout
Sep 7, 2019·Journal of Applied Microbiology·H-B YinJ Patel
Apr 3, 2018·Journal of Environmental and Public Health·Chirhakarhula E ChubakaKirstin E Ross
Jul 21, 2017·Environmental Monitoring and Assessment·Isoken H Igbinosa, Isoken T Aighewi
Apr 15, 2011·Journal of Environmental Quality·W AhmedS Toze
Jul 17, 2017·Global Challenges·Isoken Henrietta Igbinosa, Isoken Tito Aighewi
Jul 1, 2017·Water Environment Research : a Research Publication of the Water Environment Federation·Wanida ChooaksornWiyong Kangwansupamonkon
Jun 29, 2021·Frontiers in Microbiology·Silvia MonteiroRicardo Santos
Jun 30, 2021·Food and Environmental Virology·Tatsuo ShuboMarize Pereira Miagostovich
Mar 17, 2015·Environmental Science & Technology·Eri van HeijnsbergenAna Maria de Roda Husman

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