Health & Environmental Research Online (HERO)


PFOA (335-67-1) and PFOS (1763-23-1)


3,456 References Were Found:

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

A sensitive and selective triple-channel optical assay based on red-emissive carbon dots for the determination of PFOS

Authors: Chen, Q; Zhu, P; Xiong, Jie; Gao, L; Tan, K (2019) HERO ID: 5083583


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Sensitive determination of perfluoroalkane sulfonamides in water and urine samples by multiple monolithic fiber solid-phase microextraction and liquid chromatography tandem mass spectrometry

Authors: Huang, Y; Lu, M; Li, H; Bai, M; Huang, X (2019) HERO ID: 5083561

[Less] To extract perfluoroalkane sulfonamides (PFASAs) in water and urine samples effectively, a new adsorbent . . . [More] To extract perfluoroalkane sulfonamides (PFASAs) in water and urine samples effectively, a new adsorbent based on poly (1H,1H,2H,2H-nonafluorohexyl acrylate/vinyboronic anhydride pyridine complex-co-ethylenedimethacrylate) monolith (FBE) was synthesized and used as the extraction phase of multiple monolithic fiber solid-phase microextraction (MMF-SPME). Because there are abundant fluorinated (F-) alkyl chains and boron atoms in the adsorbent, the FBE/MMF-SPME displays satisfactory extraction performance for PFASAs by means of fluorophilic and B-N coordination interactions. Under the most favorable conditions, the FBE/MMF-SPME was combined with HPLC-MS/MS for the sensitive monitoring of ultra-trace PFASAs in environmental water and human urine samples. The limits of detection and limits of quantification achieved for target analytes were in the range of 0.13-1.45 ng/L and 0.44-4.80 ng/L, respectively. The developed FBE/MMF-SPME-HPLC-MS/MS method was successfully applied to quantify the level of PFASAs in water and human urine samples, and ultra-trace target PFASAs were detected in the real samples. The recoveries at different fortified concentrations ranged from 80.3% to 119% with RSD in the range of 0.9-11%. Compared with reported methods, the proposed method exhibits some merits such as high sensitivity, good method precision, low consumption of sample and environmental friendliness.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Comparison of microcrystalline and ultrananocrystalline boron doped diamond anodes: Influence on perfluorooctanoic acid electrolysis

Authors: Gomez-Ruiz, B; Diban, N; Urtiaga, Ane (2019) HERO ID: 5083657


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Decomposition of perfluorooctane sulfonate (PFOS) using a hybrid process with electron beam and chemical oxidants

Authors: Kim, TaeHun; Lee, SunH; Kim, HY; Doudrick, K; Yu, S; Kim, SDon (2019) HERO ID: 5083506


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Study on Burning and Thermal Decomposition Properties of HTPB Propellant Containing Synthesized Micro-nano Ferric Perfluorooctanoate

Authors: Zhen, Fei; Zhou, XuY; Wang, LiQ; Yang, RJie; Huang, FLei (2019) HERO ID: 5085129


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Determining global background soil PFAS loads and the fluorotelomer-based polymer degradation rates that can account for these loads

Authors: Washington, JW; Rankin, K; Libelo, EL; Lynch, DG; Cyterski, M (2019) Science of the Total Environment 651:2444-2449. HERO ID: 5080393

[Less] In recent years, fluorotelomer-based polymers (FTPs) have been the dominant product of the fluorotelomer . . . [More] In recent years, fluorotelomer-based polymers (FTPs) have been the dominant product of the fluorotelomer industry. For the last decade, whether FTPs degrade to toxic perfluorocarboxylates (PFCAs) has been vigorously contested, with early studies arguing that FTPs have half-lives >1000 years, and others concluding decadal half-lives. Given this FTP half-life discrepancy of 10- to >100-fold, here we investigate whether environmental loads of long-chain PFCAs might offer an independent approach to assess FTP half-lives. Specifically we: i) use surface soil-PFCA data to estimate terrestrial surface-soil background PFCA concentrations and loads; ii) extrapolate these data to generate global PFCA load estimates; iii) compare these estimates to published ocean-derived and industrial-emissions load estimates, finding agreement for perfluorooctanoate (C8), but an excess in longer-chain (C10,C12) PFCAs for ocean- and soil-derived loads relative to emissions; iv) model FTP degradation rates required to reconcile this discrepancy; and iv) compare our modeled estimates to existing experimental results. These findings show agreement for FTP half-lives at the decades-scale supporting existing laboratory studies that report decade-scale half-lives for FTPs. This suggests that global long-chain PFCA loads will increase for decades if legacy FTPs already manufactured are not contained upon disposal. These results suggest that FTPs comprised of novel poly- and perfluorinated alkyl substances (PFASs) now in production might constitute considerable sources to the environment of the new generation of PFASs.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Effects of ionic strength on removal of toxic pollutants from aqueous media with multifarious adsorbents: A review

Authors: Zhang, Y; Zhu, C; Liu, F; Yuan, Y; Wu, H; Li, A (2019) HERO ID: 5081339

[Less] Adsorption is one of the most widely used and effective wastewater treatment methods. The role of ionic . . . [More] Adsorption is one of the most widely used and effective wastewater treatment methods. The role of ionic strength (IS) in shaping the adsorption performances is much necessary due to the ubiquity of electrolyte ions in water body and industrial effluents. The influences of IS on adsorption are rather complex, because electrolyte ions affect both adsorption kinetics and thermodynamics by changing the basic characteristics of adsorbents and adsorbates. For a given adsorption system, multiple or even contradictory effects of IS may coexist under identical experimental conditions, rendering the dominant mechanism recognition and net effect prediction complicated. We herein reviewed the key advancement on the interaction and mechanisms of IS, including change in number of active sites for adsorbents, ion pair for metal ions, molecular aggregation and salting-out effect for organic compounds, site competition for both inorganic and organic adsorbates, and charge compensation for adsorbent-adsorbate reciprocal interactions. The corresponding fundamental theory was thoroughly described, and the efforts made by various researchers were explicated. The structural optimization of adsorbents affected by IS was detailed, also highlighting polyamine materials with exciting "salt-promotion" effects on heavy metal removal from high salinity wastewater. In addition, the research trends and prospects were briefly discussed.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Lycopene protects from perfluorooctanoic acid induced liver damage and uterine apoptosis in pregnant mice

Authors: Song, P; Li, D; Wang, X; Zhong, X (2019) International Journal of Clinical and Experimental Medicine 12:212-219. HERO ID: 5079965

[Less] This study aimed to investigate the protective effects of lycopene on liver oxidative damage and decidual . . . [More] This study aimed to investigate the protective effects of lycopene on liver oxidative damage and decidual apoptosis induced by perfluorooctanoic acid (PFOA) in early pregnancy mice. Fifty pregnant mice were randomly divided into five groups of 10 each. Mice in the control group were fed with 0.1 mL of soybean oil every morning from gestation day (GD) 1-GD 7, while mice in the PFOA model group were fed with 20 mg/kg PFOA daily. Mice in the other three lycopene groups were fed with 20 mg/kg PFOA daily and different concentrations of lycopene at doses of 10 mg/kg (Low), 20 mg/kg (Medium), and 40 mg/kg (High). Liver and uterus samples were collected on GD 9 and the organ index was calculated. Contents of SOD, GSH-Px, and MDA in the liver homogenate were measured and expression of apoptotic proteins (Bax, Bcl-2, Fas, FasL, Caspase-3) in uterine cells was detected by immunohistochemistry. Weight loss in lycopene groups was alleviated, compared to the PFOA model group. Liver indexes decreased significantly in medium and high dose lycopene groups. Uterine indexes and average weights of medium and high groups were increased significantly (P<0.01). In addition, activities of SOD and GSH-Px were significantly elevated in the high dose group (E) and levels of MDA in medium- and high-dose lycopene groups were significantly lower than controls. Moreover, levels of Caspase-3 and Fas were significantly decreased in medium and high groups (P<0.01), while levels of Bcl-2 and FasL and Bcl-2/Bax ratios were significantly increased (P<0.01). Results of the present study revealed that lycopene ameliorated PFOA induced liver oxidative damage and uterine apoptosis in early pregnant mice.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Cord blood perfluoroalkyl substances in mothers exposed to the World Trade Center disaster during pregnancy

Authors: Spratlen, MJ; Perera, FP; Lederman, SA; Robinson, M; Kannan, K; Trasande, L; Herbstman, J (2019) HERO ID: 5079969

[Less] Perfluoroalkyl substances (PFAS) may have been released during the collapse of the World Trade Center . . . [More] Perfluoroalkyl substances (PFAS) may have been released during the collapse of the World Trade Center (WTC) on 9/11. Evidence suggests PFAS can cross the placental barrier in humans and cause harm to the developing fetus; however, no studies have measured PFAS in mothers exposed to the WTC disaster during pregnancy. We measured PFAS in maternal plasma (n = 48) or cord blood (n = 231) from pregnant women in the Columbia University WTC birth cohort, enrolled between December 13, 2001 and June 26, 2002 at one of three hospitals located near the WTC site. In order to maximize sample size, we used a linear regression to transform the 48 maternal plasma samples to cord blood equivalents in our study; cord blood and transformed maternal plasma-to-cord blood samples were then analyzed together. We evaluated the association between WTC exposure and PFAS concentrations using three exposure variables: 1) living/working within two miles of WTC; 2) living within two miles of WTC regardless of work location; and 3) working but not living within two miles of WTC. Exposure was compared with those not living/working within two miles of WTC (reference group). Living/working within two miles of WTC was associated with 13% higher perfluorooctanoic acid (PFOA) concentrations compared with the reference group [GMR (95% CI): 1.13 (1.01, 1.27)]. The association was stronger when comparing only those who lived within two miles of WTC to the reference group [GMR (95% CI): 1.17 (1.03, 1.33)], regardless of work location. Our results provide evidence that exposure to the WTC disaster during pregnancy resulted in increases in PFAS concentrations, specifically PFOA. This work identifies a potentially vulnerable and overlooked population, children exposed to the WTC disaster in utero, and highlights the importance of future longitudinal studies in this cohort to investigate later life effects resulting from these early life exposures.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Reaction of Perfluorooctanoic Acid with Criegee Intermediates and Implications for the Atmospheric Fate of Perfluorocarboxylic Acids

Authors: Taatjes, CA; Khan, MAH; Eskola, AJ; Percival, CJ; Osborn, DL; Wallington, TJ; Shallcross, DE (2019) HERO ID: 5079978

[Less] The reaction of perfluorooctanoic acid with the smallest carbonyl oxide Criegee intermediate, CH2OO, . . . [More] The reaction of perfluorooctanoic acid with the smallest carbonyl oxide Criegee intermediate, CH2OO, has been measured and is very rapid, with a rate coefficient of (4.9 ± 0.8) × 10-10 cm3 s-1, similar to that for reactions of Criegee intermediates with other organic acids. Evidence is shown for the formation of hydroperoxymethyl perfluorooctanoate as a product. With such a large rate coefficient, reaction with Criegee intermediates can be a substantial contributor to atmospheric removal of perfluorocarboxylic acids. However, the atmospheric fates of the ester product largely regenerate the initial acid reactant. Wet deposition regenerates the perfluorocarboxylic acid via condensed-phase hydrolysis. Gas-phase reaction with OH is expected principally to result in formation of the acid anhydride, which also hydrolyzes to regenerate the acid, although a minor channel could lead to destruction of the perfluorinated backbone.