Results 91 to 100 of about 16,337 (250)

Half-lives of PFOS, PFHxS and PFOA after end of exposure to contaminated drinking water. [PDF]

, 2017
BACKGROUND: Municipal drinking water contaminated with perfluorinated alkyl acids had been distributed to one-third of households in Ronneby, Sweden. The source was firefighting foam used in a nearby airfield since the mid-1980s. Clean water was provided
Fletcher, Tony, Jakobsson, Kristina, Li, Ying, Lindh, Christian H, Mucs, Daniel, Scott, Kristin, Tallving, Pia   +6 more
core   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

Mass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

PFAS removal by ultrasound irradiation: pathways, chemistry and operation

Frontiers in Environmental Science
Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals found worldwide in several industrial and consumer products. The extensive use of these fluorinated organic compounds, together with their high stability, has led to a broad contamination
Andrea Luca Tasca, Jean Noel Uwayezu, Marco Panizza, Jurate Kumpiene, Ivan Carabante   +4 more
doaj   +1 more source

Use of terrestrial field studies in the derivation of bioaccumulation potential of chemicals [PDF]

, 2015
Field-based studies are an essential component of research addressing the behavior of organic chemicals, and a unique line of evidence that can be used to assess bioaccumulation potential in chemical registration programs and aid in development of ...
Arblaster, Jennifer A., Bowman, Sarah R., Condor, Jason M., Elliott, John E., Johnson, Mark S., Muir, Derek C.G., Natal-da-Luz, Tiago, Rattner, Barnett A., Sample, Bradley E., Shore, Richard F., van den Brink, Nico W.   +10 more
core   +2 more sources

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

Polymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Machine learning‐driven advances in carbon‐based quantum dots: Opportunities accompanied by challenges

Responsive Materials, EarlyView.
Machine learning provides a unifying framework to connect structure, fluorescence properties, and applications of carbon‐based quantum dots. This review highlights how data‐driven strategies enable fluorescence regulation, reveal underlying mechanisms, and accelerate the rational design of functional carbon dots.
Liangfeng Chen, Siwei Yang, Xiangqian Cui, Ziheng Liu, Hang Wang, Yongqiang Li, Peng He, Miao Wang, Guqiao Ding   +8 more
wiley   +1 more source

Association of serum concentrations of per- and polyfluoroalkyl substances in early pregnancy with risk of gestational diabetes mellitus: a prospective nested case-control study

Zhongguo gonggong weisheng
ObjectiveTo analyze the association between serum concentrations of per- and polyfluoroalkyl substances (PFASs) in early pregnancy and the risk of gestational diabetes mellitus (GDM) among pregnant women in Tianjin, and to provide guidance for the ...
Jia QI, Weiqin LI, Junhong LENG
doaj   +1 more source

Multistressor Interaction of Perfluorooctane Sulfonate (PFOS) and Temperature in Two Estuarine Fish Species, Red Drum (Sciaenops ocellatus) and Sheepshead Minnow (Cyprinodon variegatus)

Environmental Toxicology, EarlyView.
ABSTRACT Perfluorooctane sulfonate (PFOS), a perfluoroalkyl substance (PFAS), is characterized by a long, fluorinated carbon chain which makes it ideal for oil‐ and water‐repellent products but detrimental for the environment, where it persists and accumulates in organisms.
Anna L. Thornton, Katy W. Chung, Peter B. Key, Emily C. Pisarski, Philip Tanabe, Marie E. DeLorenzo   +5 more
wiley   +1 more source

Electrochemical treatment of PFAS in fractionated foam

Frontiers in Environmental Science
Foam fractionation is emerging as a promising option to remove and concentrate PFAS from polluted water and soil resources. Here, we investigate the electrochemical treatment of foamate resulting from the simultaneous application of soil washing and foam
Andrea Luca Tasca, Sveva Ladisa, Jurate Kumpiene, Ivan Carabante   +3 more
doaj   +1 more source

Modeling the hydrolysis of perfluorinated compounds containing carboxylic and phosphoric acid ester functions, alkyl iodides, and sulfonamide groups [PDF]

, 2009
Temperature dependent rate constants were estimated for the acid- and base-catalyzed and neutral hydrolysis reactions of perfluorinated telomer acrylates (FTAcrs) and phosphate esters (FTPEs), and the SN1 and SN2 hydrolysis reactions of fluorotelomer ...
Kaya Forest, Sierra Rayne
core   +1 more source