Showing 196-210 of 1117
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[Opinion] What Limits Will the World Health Organization Recommend for PFOA and PFOS in Drinking Water?
Science
26 Apr 2023 | Environ. Sci. Technol.
To support the work of public health agencies worldwide providing people with safe drinking water, the WHO guidance levels need to be updated to reflect scientific evidence.
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Impact of PFAS exposure on prevalence of immune-mediated diseases in adults in the Czech Republic
Science
26 Apr 2023 | Environ Res.
PFAS exposure was found to have some adverse immune effects, including an association of elevated PFOS levels in men with higher rates of eczema.
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Smouldering to treat PFAS in sewage sludge
Science
25 Apr 2023 | Waste Manage.
Smoldering combustion completely removed all 4-8 carbon chain length PFAS from sewage sludge under all conditions, though extremely high temperatures and the addition of CaO were needed to mineralize the PFAS completely.
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Early life exposure to low-dose perfluorooctane sulfonate disturbs gut barrier homeostasis and increases the risk of intestinal inflammation in offspring
Science
24 Apr 2023 | Environ Pollut
Low-dose PFOS exposure disrupted the developing digestive functions in a human model species.
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Global ocean contamination of per- and polyfluoroalkyl substances: A review of seabird exposure
Science
18 Apr 2023 | Chemosphere
Seabirds had higher levels of PFOS exposure – often exceeding toxicity reference values in places like the Baltic Sea and the San Francisco Bay – in the late 1990s and early 2000s, consistent with the phase-out of PFOS-based chemicals.
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Weight loss relapse associated with exposure to perfluoroalkylate substances
Science
17 Apr 2023 | Obesity
PFOA and PFHxS plasma concentrations were associated with increased weight gain, meaning obesogenic PFAS may cause weight gain and thus contribute to the obesity pandemic.
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Concentrations and isomer profiles of perfluoroalkyl carboxylates in house rats (Rattus norvegicus) and human blood: Implication for human exposure sources
Science
11 Apr 2023 | Sci Total Environ
Fluorotelomer alcohol exposure and subsequent biotransformation is an important source of PFCAs in humans and rats that live nearby.
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Predictors of serum- per- and polyfluoroalkyl substance (PFAS) concentrations among infants in Guinea-Bissau, West Africa
Science
1 Apr 2023 | Environ Res
Location of residence was an important determinant of PFAS concentrations in West African infants, which were generally lower than in most Western countries.
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Spatial and temporal variability of per- and polyfluoroalkyl substances (PFAS) in environmental media of a small pond: Toward an improved understanding of PFAS bioaccumulation in fish
Science
1 Apr 2023 | Sci Total Environ
An analysis of surface water, sediment, and fish concentrations characterized the movement of PFAS in an entire pond.
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Per-and Polyfluoroalkyl Substances and Breastfeeding as a Vulnerable Function: A Systematic Review of Epidemiological Studies
Science
29 Mar 2023 | Toxics
This review found that PFOS, PFOA, and PFNA maternal exposure levels were consistently associated with shorter total breastfeeding duration.
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Child growth and development hampered by PFAS in blood, study says
News
27 Mar 2023 | CNN
Potentially toxic chemicals found in everyday products, including fast-food wrappers, makeup and carpeting, are altering hormonal and metabolic pathways needed for human growth and development, according to a new study.
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Association between early-childhood exposure to perfluoroalkyl substances and ADHD symptoms: A prospective cohort study
Science
25 Mar 2023 | Sci. Total Environ.
Toddlers exposed to moderate levels of PFAS had a higher likelihood of exhibiting ADHD traits at eight years of age.
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PFAS: forever chemicals—persistent, bioaccumulative and mobile. Reviewing the status and the need for their phase out and remediation of contaminated sites
Science
23 Mar 2023 | ESEU
The authors of this review conclude that substituting individual PFAS recognized as hazardous with other possibly equally hazardous PFAS with virtually unknown chronic toxicity should not be a solution.
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ECHA seeks input on proposed PFAS restriction
Policy
22 Mar 2023
The European Chemicals Agency invites interested parties to send in scientific and technical information on the manufacture, placing on the market and use of per- and polyfluoroalkyl substances (PFAS) by 25 September 2023.
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Utilities see new costs in proposed PFAS water rule
News
22 Mar 2023 | Roll Call
Water utility groups estimated the national cost for treatment systems would exceed $3.8 billion a year.