Discharge of perfluorinated compounds from rivers and their influence on the coastal seas of Hyogo prefecture, Japan

Takemine, Shusuke; Matsumura, Chisato; Yamamoto, Kazuhito; Suzuki, Motoharu; Tsurukawa, Masahiro; Imaishi, Hiromasa; Nakano, Takeshi; Kondo, Akira

doi:10.1016/j.envpol.2013.09.016

Cited by 56 publications

(34 citation statements)

References 34 publications

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“…Generally, the concentrations of PFASs in water from Section 3 of Xiaoqing River were among the highest ever reported (Lein et al, 2008;Bao et al, 2011;Shan et al, 2014;Wang et al, 2014b). Concentrations of PFASs in marine waters outside of the Xiaoqing estuary (W29eW36: 586e8120 ng/L) were also 2e3 orders of magnitude higher than concentrations previously reported for coastal seawater in China (Cai et al, 2012) and elsewhere (Zhao et al, 2012;Benskin et al, 2012a;Takemine et al, 2014). It should, however, be noted that the spatial trend of P PFASs was dominated by C4eC9 PFCAs which are primarily associated with FP production.…”

Section: Identifying the Sources Of Pfass To Xiaoqing Rivermentioning

confidence: 50%

Characterizing direct emissions of perfluoroalkyl substances from ongoing fluoropolymer production sources: A spatial trend study of Xiaoqing River, China

Shi

Vestergren

et al. 2015

Environmental Pollution

100

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Section: Identifying the Sources Of Pfass To Xiaoqing Rivermentioning

confidence: 50%

Characterizing direct emissions of perfluoroalkyl substances from ongoing fluoropolymer production sources: A spatial trend study of Xiaoqing River, China

Shi

Vestergren

et al. 2015

Environmental Pollution

100

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“…The present results confirm that PFHxA was used as a processing aid, as an alternative to PFOA. This substitution of PFHxA for PFOA has previously been reported (Takemine et al 2014). The presence of PFHxA in DPF1B wastewater was most likely the result of an unintentional partial discharge of the F2 facility effluent, due to an incomplete closing of former connection pipes.…”

Section: Discharge Of F2 Facilitymentioning

confidence: 85%

“…Total riverine discharges of PFHxA were estimated to range from 0.52 to 3.7 t/year (i.e., from 1430 to 10,100 g/day). In a Japanese river, the estimated mass flow of PFHxA was 78,700 g/day downstream of a fluororesin facility (Takemine et al 2014). A study on the occurrence of PFAS in 122 European rivers (Loos et al 2009) reports PFHxA concentrations ranging from <1 to 109 ng/L.…”

Section: Concentrations and Mass Flows In The Rivermentioning

confidence: 99%

The impact of two fluoropolymer manufacturing facilities on downstream contamination of a river and drinking water resources with per- and polyfluoroalkyl substances

Bach¹,

Boiteux²,

Colin³

et al. 2016

Environ Sci Pollut Res

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Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are emerging contaminants that have been detected in the environment, biota, and humans. Drinking water is a route of exposure for populations consuming water contaminated by PFAS discharges. This research study reports environmental measurement concentrations, mass flows, and the fate of dozens of PFASs in a river receiving effluents from two fluoropolymer manufacturing facilities. In addition to quantified levels of PFASs using LC-and GC-MS analytical methods, the total amount of unidentified PFASs and precursors was assessed using two complementary analytical methods, absorbable organic fluorine (AOF) determination and oxidative conversion of perfluoroalkyl carboxylic acid (PFCA) precursors. Several dozen samples were collected in the river (water and sediment) during four sampling campaigns. In addition, samples were collected in two well fields and from the outlet of the drinking water treatment plants after chlorination. We estimated that 4295 kg PFHxA, 1487 kg 6:2FTSA, 965 kg PFNA, 307 kg PFUnDA, and 14 kg PFOA were discharged in the river by the two facilities in 2013. High concentrations (up to 176 ng/g dw) of odd long-chain PFASs (PFUnDA and PFTrDA) were found in sediment samples. PFASs were detected in all 15 wells, with concentrations varying based on the location of the well in the field. Additionally, the presence of previously discharged PFASs was still measurable. Significant discrepancies between PFAS concentration profiles in the wells and in the river suggest an accumulation and transformation of PFCA precursors in the aquifer. Chlorination had no removal efficiency and no unidentified PFASs were detected in the treated water with either complementary analytical method. Although the total PFAS concentrations were high in the treated water, ranging from 86 to 169 ng/L, they did not exceed the currently available guideline values.

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“…The samples for PFCAs and FTOHs were stored in −15°C until pretreatment was performed. The samples pretreatment and analysis of PFCAs were generally followed the procedures outlined in Takemine et al [22]. The thawed samples were filtrated by the QF (pre-washed by ultrapure water) to separate liquid phase and solid phase.…”

Section: Samples Treatment and Analysismentioning

confidence: 99%

Biodegradation Property of 8:2 Fluorotelomer Alcohol (8:2 FTOH) under Aerobic/Anoxic/Anaerobic Conditions

Takabe

Yamamoto

et al. 2016

J. of Wat. & Envir. Tech.

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The objective of present research was to clarify the effects of environment conditions of oxygen on FTOHs biodegradation property. The lab-scale batch tests of 8:2 FTOH biodegradation under aerobic/anoxic/anaerobic conditions were conducted with acclimated activated sludge collected from an industrial wastewater treatment plant. The results revealed that 8:2 FTOH biodegradation property differed in aerobic/anoxic/anaerobic conditions. The first-order rate constants of 8:2 FTOH were 6.10 × 10 −2 , 1.24 × 10 −2 and 5.81 × 10 −3 [L·g-SS -1 ·h -1 ] under aerobic/anoxic/anaerobic conditions, respectively. Within 24 hours, the transformed PFCAs (C4 − C9) moles to the applied 8:2 FTOH were 11.12%, 0.46% and 3.39% under aerobic/anoxic/anaerobic conditions, respectively. Under aerobic condition, PFCAs were remarkably generated. The increased moles of PFOA and PFHpA occupied the applied 8:2 FTOH as 7.87% and 1.29%, respectively. Moreover, the increasing tendency of PFCAs was maintained within 24 hours. The anoxic and anaerobic generation of PFCAs, besides PFOA, were not significant.

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Discharge of perfluorinated compounds from rivers and their influence on the coastal seas of Hyogo prefecture, Japan

Cited by 56 publications

References 34 publications

Characterizing direct emissions of perfluoroalkyl substances from ongoing fluoropolymer production sources: A spatial trend study of Xiaoqing River, China

Characterizing direct emissions of perfluoroalkyl substances from ongoing fluoropolymer production sources: A spatial trend study of Xiaoqing River, China

The impact of two fluoropolymer manufacturing facilities on downstream contamination of a river and drinking water resources with per- and polyfluoroalkyl substances

Biodegradation Property of 8:2 Fluorotelomer Alcohol (8:2 FTOH) under Aerobic/Anoxic/Anaerobic Conditions

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