Prevalence of human pathogens and indicators in stormwater runoff in Brisbane, Australia

Sidhu, J. P. S., Hodgers, L., Ahmed, W., Chong, M. N. and Toze, S. (2012) Prevalence of human pathogens and indicators in stormwater runoff in Brisbane, Australia. Water Research, 46 20: 6652-6660. doi:10.1016/j.watres.2012.03.012


Author Sidhu, J. P. S.
Hodgers, L.
Ahmed, W.
Chong, M. N.
Toze, S.
Title Prevalence of human pathogens and indicators in stormwater runoff in Brisbane, Australia
Journal name Water Research   Check publisher's open access policy
ISSN 0043-1354
1879-2448
Publication date 2012-12-15
Sub-type Article (original research)
DOI 10.1016/j.watres.2012.03.012
Volume 46
Issue 20
Start page 6652
End page 6660
Total pages 9
Place of publication London, United Kingdom
Publisher I W A Publishing
Collection year 2013
Language eng
Formatted abstract
Elevated numbers of enteric pathogens in the receiving waters following a storm event can be a serious public health concern. The purpose of this study was to conduct a preliminary investigation into the presence of human pathogens of concern in urban stormwater runoff. The involvement of a human sewage as a potential source of contamination was also investigated by using microbial source tracking methods. Water samples (20 L) were collected after storm events and during the dry weather from six sites in Brisbane, Australia. Collected samples were analyzed for fecal indicator bacteria (FIB), and then concentrated using hollow fiber ultrafiltration followed by molecular detection of selected enteric pathogens. The levels of FIB were found to frequently exceed the upper limit of Australian guidelines for managing risks in recreational water, during the dry periods and by further several orders of magnitude in the stormwater runoff. Enterococcus spp. numbers as high as 3 × 104 100 mL−1 were detected in the stormwater runoff at the Fitzgibbon site. Human adenovirus and polyomavirus were frequently detected from all six sampling sites during wet and dry weather conditions suggesting their wide spread presence in the urban aquatic environments. Campylobacter jejuni, Campylobacter coli and Salmonella enterica were also detected during both dry and wet weather conditions. Presence of human-specific HF183 Bacteroides marker in most of the samples tested suggests ubiquitous sewage contamination in the urban environment. Since stormwater runoff routinely contains high numbers of FIB and other enteric pathogens, some degree of treatment of captured stormwater would be required if it were to be used for non-potable purposes.
Keyword Stormwater
Fecal indicator bacteria
Adenovirus
Polyomavirus
Campylobacter spp.
Salmonella enterica
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Public Health Publications
 
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Created: Wed, 16 Jan 2013, 10:25:46 EST by Geraldine Fitzgerald on behalf of School of Public Health