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  • First detection of short-chain chlorinated paraffins (SCCPs) in humpback whales (Megaptera novaeangliae) foraging in Antarctic waters

    Author(s)
    Casa, Maria Valeria
    van Mourik, Louise M
    Weijs, Liesbeth
    Mueller, Jochen
    Nash, Susan Bengtson
    Griffith University Author(s)
    Weijs, Liesbeth
    Casa, Valeria V.
    Bengtson Nash, Susan
    Year published
    2019
    Metadata
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    Abstract
    Short-chain chlorinated paraffins (SCCPs) are particularly prone to environmental dispersal through long range atmospheric transport. Consequently, they have been detected in biota and environmental matrices at both the North Pole and South Pole. This study shows the first detection of SCCPs in southern hemisphere humpback whales feeding in Antarctic waters. Blubber of specimens stranded along the Australian coastline was analysed and SCCPs were detected in 7 out of 9 individuals. Levels of SCCPs detected in this study were generally low with concentrations up to only 46 ng/g lw. These results were significantly lower than ...
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    Short-chain chlorinated paraffins (SCCPs) are particularly prone to environmental dispersal through long range atmospheric transport. Consequently, they have been detected in biota and environmental matrices at both the North Pole and South Pole. This study shows the first detection of SCCPs in southern hemisphere humpback whales feeding in Antarctic waters. Blubber of specimens stranded along the Australian coastline was analysed and SCCPs were detected in 7 out of 9 individuals. Levels of SCCPs detected in this study were generally low with concentrations up to only 46 ng/g lw. These results were significantly lower than those detected in Northern Hemisphere odontocetes from previous studies, although no reported burdens in northern hemisphere baleen whales are available for comparison. Both the highest level and lowest (<MDL) were measured in calves-of-the-year. Congener group profile in the samples showed that the predominant carbon chain length was C11, followed by C10 = C12 > C13. Further investigation is needed in order to evaluate the presence and distribution of SCCPs in the remote Antarctica ecosystem, and delineate longer term environmental consequences of recent inclusion of SCCPs under Annex A of the Stockholm Convention, securing their phase out in ratifying nations.
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    Journal Title
    ENVIRONMENTAL POLLUTION
    Volume
    250
    DOI
    https://doi.org/10.1016/j.envpol.2019.04.103
    Subject
    Biological Oceanography
    Publication URI
    http://hdl.handle.net/10072/384627
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