Baseline assessment of metals and hydrocarbons in the sediments of Lake Mulwala, Australia

Baldwin, D. S. and Howitt, Julia 2007, Baseline assessment of metals and hydrocarbons in the sediments of Lake Mulwala, Australia, Lakes and reservoirs : research and management, vol. 12, no. 3, pp. 167-174.

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Title Baseline assessment of metals and hydrocarbons in the sediments of Lake Mulwala, Australia
Author(s) Baldwin, D. S.
Howitt, Julia
Journal name Lakes and reservoirs : research and management
Volume number 12
Issue number 3
Start page 167
End page 174
Publisher Blackwell Publishing Asia
Place of publication Carlton, Vic.
Publication date 2007
ISSN 1320-5331
Keyword(s) hydrocarbons
non-metric statistics
water storage
Summary An assessment of hydrocarbon and metal/metalloids (arsenic, cadmium, copper, lead, mercury, selenium, zinc) contamination in sediments from Lake Mulwala, Australia, was undertaken. The objectives of the study were: (i) to determine the extent of contamination in the lake sediments, compared to Australian and international sediment quality guidelines, and (ii) to attempt to identify the contaminant sources to the lake. With the exception of a few samples containing elevated levels of arsenic and/or mercury, the levels of all contaminants in the sediment samples taken from the lake were below the 'lower trigger' of the Australian Sediment Quality Guidelines that would warrant further investigation. High molecular weight hydrocarbons (up to 700 mg kg−1) were found in most sediment samples. Non-metric statistical analysis indicated that the contaminant distribution was different in different parts of the lake, with the lowest concentrations generally found at the influent to the lake. No definitive source(s) of contamination could be identified for either metalloids or hydrocarbons.
Language eng
Field of Research 039901 Environmental Chemistry (incl Atmospheric Chemistry)
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2007, CSIRO & Blackwell Publishing Asia Pty Ltd (journal compilation)
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