Results 161 to 170 of about 29,810 (206)
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Journal of Occupational & Environmental Medicine, 2011
Firefighters were likely exposed to perfluorooctane sulfonate since it was a component of extinguishing foams and perfluorohexane sulfonate (PFHxS), a surfactant coating carpet and other building materials, during firefighting. The objective of the study is to evaluate serum concentrations of perfluoroalkyl acids (PFAAs) in firefighters.A total of 8826
ChuanFang, Jin +4 more
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Firefighters were likely exposed to perfluorooctane sulfonate since it was a component of extinguishing foams and perfluorohexane sulfonate (PFHxS), a surfactant coating carpet and other building materials, during firefighting. The objective of the study is to evaluate serum concentrations of perfluoroalkyl acids (PFAAs) in firefighters.A total of 8826
ChuanFang, Jin +4 more
openaire +2 more sources
Perfluorooctane Sulfonate Concentrations in Surface Water in Japan
Archives of Environmental Contamination and Toxicology, 2003Perfluorooctane sulfonate (PFOS) is a class of specialty chemicals used in a variety of applications, and has been found to be globally distributed in many living organisms including humans. Several analytical methods have been developed for determination of PFOS in environmental samples and biological matrices.
N, Saito +5 more
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Sorption of perfluorooctane sulfonate and perfluorooctanoate on activated sludge
Chemosphere, 2010Perfluorinated compounds (PFCs) as one class of emerging pollutants have caused great attention in recent years. In this study, activated sludge was used to adsorb perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) in aqueous solution in order to investigate their sorption behavior and possible uptake mechanism in wastewater treatment ...
Qin, Zhou +5 more
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Mechanistic understanding of perfluorooctane sulfonate (PFOS) sorption by biochars
Chemosphere, 2023Biochar has recently emerged as a cost-effective solution to combat per- and polyfluoroalkyl substances (PFAS) pollution in water, but mechanistic understanding of which physicochemical properties of biochars dictate PFAS sorptive removal from water remains elusive. Herein, 15 biochars were pyrolyzed from five feedstocks (corn, Douglas fir, eucalyptus,
Samuel Krebsbach +7 more
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Avian Toxicity Reference Values for Perfluorooctane Sulfonate
Environmental Science & Technology, 2005Toxicity reference values (TRVs) and predicted no effect concentrations (PNECs) were derived for perfluorooctane sulfonate (PFOS) based on the characteristics of a top avian predator. On the basis of the protective assumptions used in this assessment, the benchmarks are protective of avian populations and were based on acute and chronic dietary ...
John L, Newsted +3 more
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Boiling significantly promotes photodegradation of perfluorooctane sulfonate
Chemosphere, 2015The application of photochemical processes for perfluorooctane sulfonate (PFOS) degradation has been limited by a low treatment efficiency. This study reports a significant acceleration of PFOS photodegradation under boiling condition compared with the non-boiling control. The PFOS decomposition rate increased with the increasing boiling intensity, but
Xian-Jin, Lyu +3 more
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Sonochemical Decomposition of Perfluorooctane Sulfonate and Perfluorooctanoic Acid
Environmental Science & Technology, 2005Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) are shown to be globally distributed, environmentally persistent, and bioaccumulative. Although the toxicities of these compounds were reported, the cleanup procedure from the environment is not developed because of their inertness.
Hiroshi, Moriwaki +5 more
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Sorption of perfluorooctane sulfonate (PFOS) on marine sediments
Marine Pollution Bulletin, 2012Sorption of anionic perfluorooctane sulfonate (PFOS) on marine sediment was investigated in detail. It was found that solution ionic composition and sediment-specific parameters played important roles in affecting the sorption of PFOS. The results indicated that sorption of PFOS in seawater to marine sediments was strong (≈ 10 times higher than that in
Hong, Chen +3 more
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Photodegradation of perfluorooctane sulfonate in environmental matrices
Separation and Purification Technology, 2015Abstract Effective photodegradation of perfluorooctane sulfonate (PFOS), an environmentally-ubiquitous persistent organic pollutant, in simple aqueous solution has been previously demonstrated. However, photocatalyst usually needs to be added and its application in complicated aquatic environment has not been reported so far.
Xian-Jin Lyu +3 more
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Oxidative Damage and Cytotoxicity of Perfluorooctane Sulfonate on Chlorella vulgaris
Bulletin of Environmental Contamination and Toxicology, 2016We studied the effects of perfluorooctane sulfonate (PFOS) on the chlorophyll content, cell permeability, and antioxidant defense systems of the green alga Chlorella vulgaris. The results showed that the production of reactive oxygen species increased in a concentration-dependent manner after exposure to PFOS for 96 h. Superoxide dismutase and catalase
Dongmei, Xu, Xuesong, Chen, Bo, Shao
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