Showing 1-15 of 1041
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Determination of per- and polyfluoroalkyl substances (PFAS) in six different fish species from Swiss lakes
Science
1 Oct 2024 | Anal Bioanal Chem
Significant PFAS contamination was found in freshwater fish from Swiss lakes, particularly in European Perch, with PFOS and PFHxS levels often exceeding EU safety limits, highlighting the need for ongoing monitoring and regulation to protect aquatic ecosystems and human health through decreased fish consumption.
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Tissue distribution and temporal and spatial assessment of per- and polyfluoroalkyl substances (PFAS) in smallmouth bass (Micropterus dolomieu) in the mid-Atlantic United States
Science
30 Sep 2024 | Environ Sci Pollut Res Int
PFAS contamination was found in smallmouth bass from various river systems in the mid-Atlantic U.S., with higher concentrations linked to areas with more developed land and PFAS facilities like military installations and airports, emphasizing the effects of land use and point sources on fish contamination.
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Prenatal exposure to PFAS and the association with neurobehavioral and social development during childhood
Science
25 Sep 2024 | Int J Hyg Environ Health
Prenatal exposure to PFAS shows mixed effects on children's neurobehavioral and social development markers like behavioral issues and anxiety, but strong associations were not found in this population with low PFAS exposure and depended on the children’s sex, type of PFAS, and developmental outcome.
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A 20-Year study reveal decrease in per- and polyfluoroalkyl substances (PFAS) in a pelagic seabird from the Western Mediterranean
Science
24 Sep 2024 | Environ Pollut
PFAS levels in the livers of a Mediterranean seabird have decreased by 77%, though persistent detection of these chemicals, especially PFOS and its substitutes, highlights the ongoing need for stronger global efforts to reduce environmental PFAS pollution.
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Per-and polyfluoroalkyl substances and disrupted sleep: mediating roles of proteins
Science
23 Sep 2024 | Environmental Advances
Exposure to certain PFAS chemicals has been associated with shorter sleep duration and increased sleep disturbances in young adults, potentially due to disruptions in metabolic and immune system functions.
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It’s raining PFAS in South Florida: Occurrence of per-and polyfluoroalkyl substances (PFAS) in wet atmospheric deposition from Miami-Dade, South Florida
Science
9 Sep 2024 | Atmos. Pollut. Res.
Rainwater in Florida contained significant levels of PFAS chemicals, including PFBA, PFNA, PFOS, and PFOA, particularly during the dry season, and analysis suggested both local and distant sources of contamination.
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Asthma and Decreased Lung Function in Children Exposed to Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs): An Updated Meta-Analysis Unveiling Research Gaps
Science
23 Aug 2024 | Environ. Res.
Exposure to PFOA is associated with a higher risk of asthma in children, while PFOS does not show a clear link to decreased lung function. Further research with larger and more consistent studies is needed to better understand these relationships and their underlying mechanisms.
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Preferential Partitioning of Per-and Polyfluoroalkyl Substances in Freshwater Ice
Science
13 Aug 2024 | Environ. Sci. Technol.
PFAS are typically excluded from ice as freshwater lakes freeze, but some PFAS and dissolved organic carbon are preferentially concentrated in the ice, affecting their distribution and potential release into the environment when the ice melts.
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Assessment of per- and poly-fluoroalkyl substances and physiological biomarkers in aquarium-based bottlenose dolphins and killer whales
Science
6 Aug 2024 | Chemosphere
PFAS, especially PFOS and PFNA, were found in the serum of zoo-based bottlenose dolphins and killer whales, and the study revealed significant correlations between PFAS exposure and physiological effects, such as increased reactive oxygen species, suggesting potential health risks that could inform future conservation and regulatory decisions.
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Per- and polyfluoroalkyl substances exposure is associated with polycystic ovary syndrome risk among women attending a fertility clinic
Science
6 Aug 2024 | Sci Total Environ
Exposure to certain PFAS, particularly PFOS and PFHxS, has been linked to an increased risk of polycystic ovary syndrome among women seeking fertility treatment, even at lower exposure levels, highlighting the reproductive health risks associated with PFAS.
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Every Fish Sample Tested in Northern Illinois Rivers Found Contaminated with PFAS
News
31 Jul 2024 | Technology Networks
They found fish contaminated with PFAS in every one of their 15 test sites.
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Examining the Impact of Polyfluoroalkyl Substance Exposure on Erythrocyte Profiles and Its Related Nutrients: Insights from a Prospective Study on Young Taiwanese
Science
29 Jul 2024 | Environ. Pollut.
A decade-long study of 502 young Taiwanese individuals found that PFAS exposure is associated with changes in erythrograms, linking specific PFAS compounds to increased transferrin saturation and decreased vitamin B12 levels, with significant interactions involving iron status, vitamin B12, and folate.
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Determination of legacy and emerging per-and polyfluoroalkyl substances (PFAS) in indoor and outdoor air
Science
25 Jul 2024 | ACS ES&T Air
High levels of fluorotelomer alcohols (FTOHs) and other legacy & emerging PFAS were found in indoor and outdoor air, with significant temporal variations and distinct gas/particle partitioning, highlighting the need for better understanding and regulation of airborne PFAS.
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Prenatal Exposure of PFAS in Cohorts of Pregnant Women: Identifying the Critical Windows of Vulnerability and Health Implications
Science
25 Jul 2024 | Environ. Sci. Technol.
From 2018 to 2020, a prenatal PFAS exposure study in pregnant women and their newborns showed a decline in older PFAS but an increase in emerging PFAS and highlighted the third trimester as a critical window affecting birth weight and length.
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Chemical threats for the sentinel Pygoscelis adeliae from the Ross Sea (Antarctica): Occurrence and levels of persistent organic pollutants (POPs), perfluoroalkyl substances (PFAS) and mercury within the largest marine protected area worldwide
Science
7 Jul 2024 | Sci Total Environ
A study of unhatched Adélie penguin eggs from the Ross Sea Marine Protected Area in Antarctica revealed ongoing presence of legacy pollutants and the first detection of PFAS, underscoring the need for continued monitoring to assess the effectiveness of conservation efforts against human impacts.