Results 211 to 220 of about 15,377 (250)

Apparent Half-Lives of Chlorinated-Perfluorooctane Sulfonate and Perfluorooctane Sulfonate Isomers in Aviation Firefighters

Environmental Science & Technology, 2022
Elevated levels of perfluorooctane sulfonate (PFOS) and elevated detection frequency of chloro-substituted PFOS have been reported in Australian firefighters with historical exposure to aqueous-film forming foam (AFFF). The aim of this study is to estimate the apparent half-lives of Cl-PFOS and PFOS isomers in firefighters following the end of exposure
Sandra Nilsson, Jack Thompson, Jochen F. Mueller, Jennifer Bräunig   +3 more
openaire   +2 more sources

Reductive Defluorination of Perfluorooctane Sulfonate

Environmental Science & Technology, 2008
Perfluorooctane sulfonate (PFOS) is under increased scrutiny as an environmental pollutant due to recent reports of its worldwide distribution, environmental persistence, and bioaccumulation potential. The susceptibility of technical PFOS and PFOS branched isomers to chemical reductive dehalogenation with vitamin B12 (260 microM) as catalyst and Ti(III)
Valeria, Ochoa-Herrera, Reyes, Sierra-Alvarez, Arpad, Somogyi, Neil E, Jacobsen, Vicki H, Wysocki, Jim A, Field   +5 more
openaire   +2 more sources

Seizurogenic effect of perfluorooctane sulfonate in zebrafish larvae

NeuroToxicology, 2022
While the developmental neurotoxicity of perfluorooctane sulfonate (PFOS) has been reported, its seizurogenic potential has not been investigated. Behavior assessment was conducted in zebrafish larvae exposed to PFOS at concentrations of 0, 0.1, 1, 5, 10, and 20 μM.
Hyojin Lee, Cong M. Tran, Soomin Jeong, Seong Soon Kim, Myung Ae Bae, Ki-Tae Kim   +5 more
openaire   +2 more sources

Partitioning of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) between water and sediment

Chemosphere, 2011
Laboratory partitioning experiments were conducted to elucidate the sorption behaviour and partitioning of perfluoroalkyl compounds (PFCs). Three different sediment types were used and separately spiked with perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) at low environmentally realistic ...
Lutz, Ahrens, Leo W Y, Yeung, Sachi, Taniyasu, Paul K S, Lam, Nobuyoshi, Yamashita   +4 more
openaire   +2 more sources

Global Distribution of Perfluorooctane Sulfonate in Wildlife

Environmental Science & Technology, 2001
Here we report, for the first time, on the global distribution of perfluorooctanesulfonate (PFOS), a fluorinated organic contaminant. PFOS was measured in the tissues of wildlife, including, fish, birds, and marine mammals. Some of the species studied include bald eagles, polar bears, albatrosses, and various species of seals.
J P, Giesy, K, Kannan
openaire   +2 more sources

Sorption of perfluorooctane sulfonate on organo-montmorillonites

Chemosphere, 2010
Perfluorinated compound as one of the emerging pollutants has caused great attention in recent years. In this study, the organo-montmorillonites (organo-Mts) with different amounts and arrangements of hexadecyltrimethylammonium bromide (HDTMAB) were prepared as effective sorbents for PFOS removal from water.
Qin, Zhou, Shubo, Deng, Qiang, Yu, Qiaoying, Zhang, Gang, Yu, Jun, Huang, Hongping, He   +6 more
openaire   +2 more sources

Boiling significantly promotes photodegradation of perfluorooctane sulfonate

Chemosphere, 2015
The 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, Wen-Wei, Li, Paul K S, Lam, Han-Qing, Yu   +3 more
openaire   +2 more sources

Avian Toxicity Reference Values for Perfluorooctane Sulfonate

Environmental Science & Technology, 2005
Toxicity 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, Paul D, Jones, Katie, Coady, John P, Giesy   +3 more
openaire   +2 more sources

Accumulation of Perfluorooctane Sulfonate in Marine Mammals

Environmental Science & Technology, 2001
Perfluorooctane sulfonate (PFOS) is a perfluorinated molecule that has recently been identified in the sera of nonindustrially exposed humans. In this study, 247 tissue samples from 15 species of marine mammals collected from Florida, California, and Alaskan coastal waters; and northern Baltic Sea; the Arctic (Spitsbergen); and Sable Island in Canada ...
K, Kannan, J, Koistinen, K, Beckmen, T, Evans, J F, Gorzelany, K J, Hansen, P D, Jones, E, Helle, M, Nyman, J P, Giesy   +9 more
openaire   +2 more sources

Endocrine and developmental effects in Atlantic salmon (Salmo salar) exposed to perfluorooctane sulfonic or perfluorooctane carboxylic acids

Aquatic Toxicology, 2012
In this study, we have investigated the effect of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) on endocrine signalling, growth and development in Atlantic salmon (Salmo salar) embryos and larvae. Expression of genes related to the hypothalamic-pituitary-thyroid (HPT) axis, growth-hormone/insulin-like growth factor (GH/IGF) axis ...
Bård, Spachmo, Augustine, Arukwe
openaire   +2 more sources