Survey of Airborne Polyfluorinated Telomers in Keihan Area, Japan

Oono, Sayoko; Matsubara, Eriko; Harada, Kouji H.; Takagi, Sokichi; Hamada, Sachiko; Asakawa, Akihiro; Inoue, Kazuhiro; Watanabe, Ichiro

doi:10.1007/s00128-007-9324-2

Cited by 39 publications

(26 citation statements)

References 9 publications

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“…In this work, two fluorotelomer acrylates, 8:2 FTAC and 6:2 FTAC, were determined at relatively low levels with ranges of <0.2-4.4 and <0.9-1.2 pg m −3 , respectively. These results are two to five times lower than those reported in the North Sea and at an urban site of Hamburg (Dreyer and Ebinghaus 2009) and in the Asia-Pacific region (Li et al 2011), and 3 orders of magnitude lower than those reported in Japan (Oono et al 2008). FTACs are monomers used in the manufacturing of fluorotelomer-based polymers.…”

Section: Resultsmentioning

confidence: 62%

Neutral poly- and perfluoroalkyl substances in air and seawater of the North Sea

Xie¹,

Zhao

Møller

et al. 2013

Environ Sci Pollut Res

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Concentrations of neutral poly-and perfluoroalkyl substances (PFASs), such as fluorotelomer alcohols (FTOHs), perfluoroalkane sulfonamides (FASAs), perfluoroalkane sufonamidoethanols (FASEs), and fluorotelomer acrylates (FTACs), have been simultaneously determined in surface seawater and the atmosphere of the North Sea. Seawater and air samples were taken aboard the German research vessel Heincke on the cruise 303 from 15 to 24 May 2009. The concentrations of FTOHs, FASAs, FASEs, and FTACs in the dissolved phase were 2.6-74, <0.1-19, <0.1-63, and <1.0-9.0 pg L −1 , respectively. The highest concentrations were determined in the estuary of the Weser and Elbe rivers and a decreasing concentration profile appeared with increasing distance from the coast toward the central part of the North Sea. Gaseous FTOHs, FASAs, FASEs, and FTACs were in the range of 36-126, 3.1-26, 3.7-19, and 0.8-5.6 pg m −3 , which were consistent with the concentrations determined in 2007 in the North Sea, and approximately five times lower than those reported for an urban area of Northern Germany. These results suggested continuous continental emissions of neutral PFASs followed by transport toward the marine environment.Air-seawater gas exchanges of neutral PFASs were estimated using fugacity ratios and the two-film resistance model based upon paired air-seawater concentrations and estimated Henry's law constant values. Volatilization dominated for all neutral PFASs in the North Sea. The air-seawater gas exchange fluxes were in the range of 2.5×10 3 -3.6×10 5 pg m −2 for FTOHs, 1.8 × 10 2 -1.0 × 10 5 pg m −2 for FASAs, 1.1 × 10 2 -3.0 × 10 5 pg m −2 for FASEs and 6.3×10 2 -2.0×10 4 pg m −2 for FTACs, respectively. These results suggest that the air-seawater gas exchange is an important process that intervenes in the transport and fate for neutral PFASs in the marine environment.

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Section: Resultsmentioning

confidence: 62%

Neutral poly- and perfluoroalkyl substances in air and seawater of the North Sea

Xie¹,

Zhao

Møller

et al. 2013

Environ Sci Pollut Res

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“…29 Concentrations of FTAs were generally <100 pg m À3 , except at Higashiyodogawa, in Osaka City, Japan where the highest value of 2950 pg m À3 was detected. 24 In this study, the concentrations of 6:2 FTA and 8:2 FTA ranged from ND-3.4 pg m À3 and ND-15 pg m À3 with frequencies of detection of 24% and 93%, respectively. Overall, these results are in the same range as previous studies (see Table S6).…”

Section: ' Introductionmentioning

confidence: 55%

“…Specifically, correlations were high (r > 0.90, p < 0.01) between 8:2 FTOH, 10:2 FTOH, and 12:2 FTOH, as observed at other sites in the world. 24,25 However, 4:2 FTOH and 6:2 FTOH did not show significant correlation with other FTOHs. This implies that these FTOHs are sourced from the different products containing the different FTOH composition in Asia.…”

Section: Articlementioning

confidence: 74%

Perfluorinated Compounds in the Asian Atmosphere

Vento

Schuster

et al. 2011

Environ. Sci. Technol.

150

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There is interest in the production, use, and environmental occurrence of perfluorinated compounds (PFCs) across Asia and the Asian contributions to the burden of these compounds reaching the Arctic and other remote regions via long-range transport. A spatial survey of perfluorinated compounds was therefore undertaken across China, India, and Japan in 2009 using passive air samplers. Target analytes were fluorotelomer olefins (FTOs), acrylates (FTAs), alcohols (FTOHs), sulfonamides, and sulfonamidoethanols. Wide variations in concentrations and mixtures of compounds were apparent from the study. Generally the FTOHs were the most abundant, followed by 8:2 FTO in China and Japan and by the sulfonamides in India. There was a general decline in PFC concentration from urban, rural, to remote locations. Background stations reflected regional differences in air mass composition. A site in the west Pacific Ocean exhibited a Japanese profile in which 8:2 FTO and 8:2 FTOH were predominant. In contrast, a southern Indian profile with high 4:2 FTOH concentrations was observed at a background site in southern China.

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“…FTOHs are currently produced and used as intermediates for the synthesis of coatings, polymers, inks, adhesives, waxes, and so on. Oono et al [41,42] reported that the airborne levels of several FTOHs were significantly higher in the Kyoto-Osaka area than in other areas. Taken together, the higher levels of airborne PFOA in the Kyoto-Osaka area may be caused by the high levels of FTOHs in the air.…”

Section: Distributions Of Pfoa and Pfos In Outdoor Air And Indoor Dusmentioning

confidence: 98%

Environmental and biological monitoring of persistent fluorinated compounds in Japan and their toxicities

Harada

2008

Environ Health Prev Med

Self Cite

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Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) comprise a class of per- and poly-fluorinated compounds that have been detected in the environment as well as in humans. The aim of this review is to summarize several monitoring studies in Japan and characterize the toxicokinetics of these compounds. We found that the levels of contamination by these compounds had unique patterns in Japan. The levels of PFOA in serum from inhabitants of the Kansai region were higher than those of other regions. The PFOA levels in air and water samples from the Kansai region were also relatively high. The estimated intakes from these routes partly explain the differences in the serum levels. The toxicokinetics of these compounds have been investigated. Serum samples from male participants had significantly higher geometric means for PFOS and PFOA compared to samples from female participants. This sex-related difference was partly simulated by menstrual blood loss. There are large interspecies differences in the excretion pathways of these compounds. The serum clearances of PFOA via urine were 300-1,000-fold lower in humans than in Wistar rats and Japanese macaques. On the other hand, the biliary excretion of these compounds was comparable in rats and humans, and the long half-lives in humans may be attributable to the low levels of urinary excretion and high biliary reabsorption rates. These findings suggest that qualitative differences in the excretion routes exist between humans and other species. For risk assessment of these compounds, further information regarding sources of exposure and their toxicokinetics is needed.

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Survey of Airborne Polyfluorinated Telomers in Keihan Area, Japan

Cited by 39 publications

References 9 publications

Neutral poly- and perfluoroalkyl substances in air and seawater of the North Sea

Neutral poly- and perfluoroalkyl substances in air and seawater of the North Sea

Perfluorinated Compounds in the Asian Atmosphere

Environmental and biological monitoring of persistent fluorinated compounds in Japan and their toxicities

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