Journal article
Bacterial source tracking from diverse land use catchments by sterol ratios
Water research (Oxford), Vol.41(16), pp.3667-3674
2007
PMID: 17433407
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Abstract
Water samples from sites potentially impacted by septic tanks, cattle, sewage treatment plant (STP) and natural forests were collected at regular monthly intervals and within 48
h of rainfall events between October 2004 and June 2006. All samples (
n=296) were analysed for faecal coliforms and faecal sterols including coprostanol, epicoprostanol, cholestanol, cholesterol and 24-ethylcoprostanol. Faecal sterol ratios were used to assign human and/or herbivore contamination sources and to estimate their percentage relative contributions in water samples. The catchments had significantly different profiles of designated contamination origins (
p<0.05), which were consistent with land use patterns. The STP impacted site had the highest incidence of human contamination assignations and the highest mean levels of coprostanol, whilst the forested site had the highest incidence of uncontaminated samples and the lowest mean concentration of coprostanol. Coprostanol concentrations were not always correlated with faecal coliform counts.
Details
- Title
- Bacterial source tracking from diverse land use catchments by sterol ratios
- Creators
- Vikaskumar G Shah (Author) - University of NewcastleR Hugh Dunstan (Author) - University of NewcastlePhillip M Geary (Author) - University of NewcastlePeter Coombes (Author) - University of NewcastleTimothy K Roberts (Author) - University of NewcastleTony Rothkirch (Author) - University of Newcastle
- Publication Details
- Water research (Oxford), Vol.41(16), pp.3667-3674
- Publisher
- Elsevier Ltd
- Identifiers
- 991012888199002368
- Academic Unit
- Faculty of Science and Engineering; School of Environment, Science and Engineering; Engineering
- Language
- English
- Resource Type
- Journal article