Showing 166-180 of 1089
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Occurrence and risk assessments of per-and polyfluoroalkyl substances in tea bags from India
Science
1 May 2023 | Food Control
PFOS, PFHxS, and PFuNA were abundantly present in tea bag materials and tea powder, with PFOS and PFHxS contributing to high levels of exposure.
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Association between prenatal and early postnatal exposure to perfluoroalkyl substances (PFAS) and IQ score in 7-year-old children from the Odense Child Cohort
Science
29 Apr 2023 | Am J Epidemiol.
Maternal PFOS and PFNA concentrations were associated with lower IQ in children.
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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.