Spatial and rainfall related patterns of bacterial contamination in Sydney Harbour estuary

IWA Publishing
Publication Type:
Journal Article
Journal of Water and Health, 2005, 3 pp. 349 - 358
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Water qaulity in recreational areas in Sydney Harbour, Australia, was analysed first into identify spatial patterns in faecal coliform and entercocci densities, and then to determine the relationship between bacterial densities and catchment rainfall. Non-metric multidimensional scaling separated sites closets to themouth of the harbour from those further up the harbour's west and north-west arms. Sites closest to the harbour mouth generally had lower frequencies of high bacterial densities that exceeded median water quality guideline values. We attribute this to greater tidal flushing at sites closer to the harbour mouth.
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