Sewage pollution in urban stormwater runoff as evident from widespread presence of multiple microbial and chemical source tracking markers

Sidhu, J. P. S., Ahmed, W., Gernjak, W., Aryal, R., McCarthy, D., Palmer, A., Kolotelo, P. and Toze, S. (2013) Sewage pollution in urban stormwater runoff as evident from widespread presence of multiple microbial and chemical source tracking markers. Science of the Total Environment, 463-464 488-496. doi:10.1016/j.scitotenv.2013.06.020


Author Sidhu, J. P. S.
Ahmed, W.
Gernjak, W.
Aryal, R.
McCarthy, D.
Palmer, A.
Kolotelo, P.
Toze, S.
Title Sewage pollution in urban stormwater runoff as evident from widespread presence of multiple microbial and chemical source tracking markers
Journal name Science of the Total Environment   Check publisher's open access policy
ISSN 0048-9697
1879-1026
Publication date 2013-10-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.scitotenv.2013.06.020
Open Access Status Not Open Access
Volume 463-464
Start page 488
End page 496
Total pages 9
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Abstract The concurrence of human sewage contamination in urban stormwater runoff (n=. 23) from six urban catchments across Australia was assessed by using both microbial source tracking (MST) and chemical source tracking (CST) markers. Out of 23 stormwater samples human adenovirus (HAv), human polyomavirus (HPv) and the sewage-associated markers; Methanobrevibacter smithii nifH and Bacteroides HF183 were detected in 91%, 56%, 43% and 96% of samples, respectively. Similarly, CST markers paracetamol (87%), salicylic acid (78%) acesulfame (96%) and caffeine (91%) were frequently detected. Twenty one samples (91%) were positive for six to eight sewage related MST and CST markers and remaining two samples were positive for five and four markers, respectively. A very good consensus (>. 91%) observed between the concurrence of the HF183, HAv, acesulfame and caffeine suggests good predictability of the presence of HAv in samples positive for one of the three markers. High prevalence of HAv (91%) also suggests that other enteric viruses may also be present in the stormwater samples which may pose significant health risks. This study underscores the benefits of employing a set of MST and CST markers which could include monitoring for HF183, adenovirus, caffeine and paracetamol to accurately detect human sewage contamination along with credible information on the presence of human enteric viruses, which could be used for more reliable public health risk assessments. Based on the results obtained in this study, it is recommended that some degree of treatment of captured stormwater would be required if it were to be used for non-potable purposes.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
Advanced Water Management Centre Publications
 
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Created: Tue, 09 Jul 2013, 20:08:43 EST by Dr Wolfgang Gernjak on behalf of Advanced Water Management Centre