Perfluorinated compounds in urban river sediments from Guangzhou and Shanghai of China

Perfluoroalkyl acids (PFAAs) in riverine and coastal sediments of Laizhou Bay, North China

“…Except for the extremely highlevel PFOA sites, PFOA levels at other sampling sites (b MDL to 1.81 ng/g dw) were lower than those of the Haihe River (0.9 ng/g to 7.3 ng/g dw) and Dagu Drainage River (0.27 ng/g to 1.7 ng/g dw) and were quite comparable with the concentrations observed in the river and coast sediments from other locations in China (0.08 ng/g to 1.7 ng/g dw in Hun River, 0.20 ng/g to 0.64 ng/g dw in Yangtze River and 0.09 ng/g to 0.29 ng/g dw in Zhujiang River) (Bao et al, 2009(Bao et al, , 2010b, Japan (0.45 ng/g to 1.1 ng/g dw) (Nakata et al, 2006;Zushi et al, 2010) and the USA (nd to 0.625 ng/g dw) (Senthil et al, 2009). PFOS levels in sediments from the Laizhou Bay and adjacent rivers in this study (0.02 ng/g to 1.6 ng/g) were lower than the levels reported in some urban rivers in China, namely, the Haihe River (1.8 ng/g to 7.3 ng/g dw), the Dagu Drainage River (0.09 ng/g to 2.3 ng/g dw) ) and the Zhujiang River (ng to 3.1 ng/g dw) (Bao et al, 2010b), but were higher than the levels reported in Taihu Lake (0.06 ng/g to 0.31 ng/g dw) (Yang et al, 2011) (Table 1). Wang et al (2011) investigated the PFOS concentrations on the northern coast of the Bohai Sea, which were higher (up to 1.97 ng/g dw) than the concentrations presented in this study.…”

Spatio-temporal assessment of perfluorinated compounds in the Brisbane River system, Australia: Impact of a major flood event

“…Sydney, Australia (Becker et al 2008;Sakurai et al 2010;Bao et al 2010;Aherns et al 2010b; Thompson et al 2011). Although approximately 97 % of PFASs remain in the dissolved phase (Aherns 2010b), given that 1,040,000 tonnes of sediment was flushed into…”

Distribution and long-range transport of polyfluoroalkyl substances in the Arctic, Atlantic Ocean and Antarctic coast

“…The annual production of neutral fluorotelomer alcohols (FTOHs) was estimated as 11,000e14,000 t after 2002, and global historical production was 44,000e80,000 t for perfluoroalkyl carboxylic acids (PFCAs) (1951e2004) and 96,000 t for perfluorooctane sulfonyl fluoride (POSF) (1970e2002), respectively Dinglasan-Panlilio and Mabury, 2006;Paul et al, 2008). PFASs have been detected ubiquitously in air, water, sediment, wildlife and human beings all around the world as a result of their decades-long manufacture and applications (Schiavone et al, 2009;Bao et al, 2010;Genualdi et al, 2010;Kato et al, 2011;Li et al, 2011;Meyer et al, 2011).…”