Input characterization of perfluoroalkyl substances in wastewater treatment plants: Source discrimination by exploratory data analysis

Xiao, Feng; Halbach, Thomas R.; Simcik, Matt F.; Gulliver, John S.

doi:10.1016/j.watres.2012.03.027

Cited by 153 publications

(71 citation statements)

References 48 publications

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“…n Probability adjusted for age, gender, race/ethnicity, body mass index, smoking status, drinking status, average household income, and regular exercise program. (Xiao et al, 2012). Our findings indicate a significant association between PFHxA and phenotypic GS.…”

Section: Discussionsupporting

confidence: 50%

Perfluorocarbons and Gilbert syndrome (phenotype) in the C8 Health Study Population

Fan¹,

Ducatman²,

Zhang³

2014

Environmental Research

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Section: Discussionsupporting

confidence: 50%

Perfluorocarbons and Gilbert syndrome (phenotype) in the C8 Health Study Population

Fan¹,

Ducatman²,

Zhang³

2014

Environmental Research

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“…3). PFAAs could be detected at site SD-1 (55.7 ng/L), which suggested domestic emissions or urban stormwater runoff from the Zibo City was occurring (Xiao et al, 2012a;Xiao et al, 2012b). The concentration of ∑PFAAs at site GD-1 (groundwater adjacent to SD-1) was 2.09 ng/L was much lower than that in nearby surface water.…”

Section: Occurrence and Source Identification Of Pfaas In Surface Andmentioning

confidence: 93%

“…The presence of perfluorooctane sulfonate (PFOS) in the environment is usually associated with discharge from industries such as metal plating, textile treatment and PFOS manufacture, while most perfluorooctanoic acid (PFOA) is derived from PFOA production and fluoropolymer manufacturing and processing (Xie et al, 2013b;Li et al, 2015). Manufacturing facilities are major sources for PFAAs in surface and ground water, the contamination can continue even if the facilities have terminated the production of PFAA-related products (Xiao et al, 2012a). PFAA levels in groundwater affected by a former manufacturing facility from the 1940s to 2002 are still as high as 24 μg/L for PFOA and 1.6 μg/L for PFOS (Xiao et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Risk assessment and source identification of perfluoroalkyl acids in surface and ground water: Spatial distribution around a mega-fluorochemical industrial park, China

Liu

Lü

Wang

et al. 2016

Environment International

134

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Perfluoroalkyl acids (PFAAs) can be released to water bodies during manufacturing and application of PFAA-containing products. In this study, the contamination pattern, attenuation dynamics, sources, pathways, and risk zoning of PFAAs in surface and ground water was examined within a 10 km radius from a mega-fluorochemical industrial park (FIP). Among 12 detected PFAAs, perfluorooctanoic acid (PFOA) dominated, followed by shorter-chained perfluoroalkyl carboxylic acids (PFCAs). PFAA-containing waste was discharged from the FIP, with levels reaching 1.86 mg/L in the nearby rivers flowing to the Bohai sea together with up to 273 μg/L in the local groundwater in the catchment. These levels constitute a human health risks for PFOA and other shorter-chained PFCAs within this location. The concentrations of ∑PFAAs in surface water strongly correlated with the local groundwater. The dominant pollution pathways of PFAAs included (i) discharge into surface water then to groundwater through seepage, and (ii) atmospheric deposition from the FIP, followed by infiltration to groundwater. As the distance increased from the source, PFAAs levels in groundwater showed a sharp initial decrease followed by a gentle decline. The contamination signal from the FIP site on PFAAs in groundwater existed within a radius of 4 km, and at least 3 km from the polluted Dongzhulong River. The major controlling factor in PFAA attenuation processes was likely to be dilution together with dispersion and adsorption to aquifer solids. The relative abundance of PFOA (C8) declined while those of shorter-chained PFCAs (C4-C6) increased during surface water seepage and further dispersion in groundwater.

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“…The total concentrations of PFSAs ( P PFSAs) across Shenzhen were quite uniform, with the ratio of the highest to lowest measured values (H/L ratio) less than 2 except in BD site (Fig. S2C), which might be due to the fact that the PFOS-containing mist suppressant was usually applied to control hexavalent chromium emissions in electroplating industries (Xiao et al, 2012;Kelly and Solem, 2008) which were widely distributed in Shenzhen.…”

Section: Spatial Distribution Of Pfcs In the Atmosphere Of Shenzhenmentioning

confidence: 99%

Perfluorinated compounds (PFCs) in the atmosphere of Shenzhen, China: Spatial distribution, sources and health risk assessment

et al. 2015

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Input characterization of perfluoroalkyl substances in wastewater treatment plants: Source discrimination by exploratory data analysis

Cited by 153 publications

References 48 publications

Perfluorocarbons and Gilbert syndrome (phenotype) in the C8 Health Study Population

Perfluorocarbons and Gilbert syndrome (phenotype) in the C8 Health Study Population

Risk assessment and source identification of perfluoroalkyl acids in surface and ground water: Spatial distribution around a mega-fluorochemical industrial park, China

Perfluorinated compounds (PFCs) in the atmosphere of Shenzhen, China: Spatial distribution, sources and health risk assessment

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