Perfluorinated alkyl acids in water, sediment and wildlife from Sydney Harbour and surroundings
Jack Thompson1, Anthony Roach, Geoff Eaglesham
1The University of Queensland, National Research Center for Environmental Toxicology (Entox), 39 Kessels Rd., Coopers Plains, Qld 4108, Australia. jack.thompson@uq.edu.au
Abstract:
Perfluorinated alkyl compounds (PFCs) including perfluorooctane sulphonate (PFOS) and perfluorooctanoate (PFOA) were measured in environmental samples collected from around Homebush Bay, an urban/industrial area in the upper reaches of Sydney Harbour and Parramatta River estuary. Water, surface sediment, Sea Mullet (Mugil cephalus), Sydney Rock Oyster (Saccostrea commercialis) and eggs of two bird species; White Ibis (Threskiornis molucca), and Silver Gull (Larus novaehollandiae) were analysed. In most samples PFOS was the dominant PFC. Geometric mean PFOS concentrations were 33 ng/gww (wet weight) in gull eggs, 34 ng/gww in ibis eggs, and 1.8 ng/gww and 66 ng/gww in Sea Mullet muscle and liver, respectively. In sediment the PFOS geometric mean was 1.5 ng/g, in water average PFOS and PFOA concentrations ranged from 7.5 to 21 ng/L and 4.2 to 6.4 ng/L, respectively. In oysters perfluorododecanoic acid was most abundant, with a geometric mean of 2.5 ng/gww.
