Showing 31-45 of 1009
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Exposure to perfluoroalkyl substances and longitudinal changes in bone mineral density in adolescents and young adults: A multi-cohort study
Science
23 Nov 2023 | Environ Res
Exposure to PFOS was found to be associated with lower bone mineral density in both Hispanic adolescents and mixed-ethnicity young adults, suggesting potential long-term impacts on bone health and increased risk of osteoporosis in adulthood.
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Per-and polyfluoroalkyl substances (PFAS) in Canadian municipal wastewater and biosolids: Recent patterns and time trends 2009 to 2021
Science
19 Nov 2023 | Sci. Total Environ.
PFOS and PFOA remain in Canadian wastewater and biosolids, with concentrations of long-chain PFAS – except for PFOS – decreasing over time, while short-chain PFAS, used as replacements, show a consistent increase in wastewater between 2009 and 2021.
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Per- and poly-fluoroalkyl substances in commercial organic eggs via fishmeal in feed
Science
7 Nov 2023 | Chemosphere
Organic eggs from certain farms in Denmark were found to contain elevated levels of PFAS originating from fishmeal used in organic feed, leading to the voluntary removal of fishmeal from the feed by producers to mitigate PFAS exposure.
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Prevalence and Source Tracing of PFAS in Shallow Groundwater Used for Drinking Water in Wisconsin, USA
Science
2 Nov 2023 | Environ Sci Technol
Human waste sources, septic systems in particular, are important sources of PFAAs, especially ones with 8 or less perfluorinated carbons, in shallow groundwater.
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Exposure to perfluoroalkyl and polyfluoroalkyl substances and pediatric obesity: a systematic review and meta-analysis
Science
31 Oct 2023 | Int J Obes (Lond)
The review investigated the potential impact of PFAS on childhood obesity. It observed a possible inverse relationship between postnatal PFAS exposure and changes in body mass index though the review was limited by the small number of studies.
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Chemical crisis: The unseen toxic threat contaminating wildlife worldwide
News
28 Oct 2023 | The Hill
An unseen but growing chemical contamination crisis is threatening wildlife across all seven continents, exacerbating a host of environmental threats they’re already facing.
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Trends in Serum Per-and Polyfluoroalkyl Substance (PFAS) Concentrations in Teenagers and Adults, 1999–2018 NHANES
Science
27 Oct 2023 | Int. J. Environ. Res. Public Health
Some longer chain PFAS levels in serum have decreased over time, however they are still detected in drinking water and consumer products, with certain racial/ethnic groups showing differing levels of exposure, highlighting the need for continued monitoring.
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Per- and Polyfluoroalkyl Substances (PFAS) in PubChem: 7 Million and Growing
Science
23 Oct 2023 | Environ. Sci. Technol.
The Organisation for Economic Co-operation and Development's 2021 revision of the PFAS definition has led to the inclusion of over 7 million PFAS compounds in PubChem.
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Metabolic Perturbations Associated with an Exposure Mixture of Per-and Polyfluoroalkyl Substances in the Atlanta African American Maternal-Child Cohort
Science
19 Oct 2023 | Environ Sci Technol
Prenatal exposure to a mixture of PFAS chemicals, including PFOA, PFNA, PFOS, and PFHxS, is associated with significant metabolic perturbations indicative of systemic inflammation and oxidative stress in pregnant African-American women, highlighting the importance of considering the joint effects of these chemicals on human health.
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Environmental exposure to legacy and emerging per- and polyfluoroalkyl substances and endometriosis in women of childbearing age
Science
14 Oct 2023 | Sci. Total Environ.
PFOA and certain PFOS isomers were positively associated with an increased risk of endometriosis.
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Estimation of the Half-Lives of Recently Detected Per- and Polyfluorinated Alkyl Ethers in an Exposed Community
Science
6 Oct 2023 | Environ Sci Technol
The biological half-lives of fluoroethers were found to be shorter compared to PFOA and PFOS, but longer than PFHxA and PFHpA according to a model combining estimates from exposed populations and literature values.
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Associations between PFAS concentrations and the oxidative status in a free-living songbird (Parus major) near a fluorochemical facility
Science
25 Sep 2023 | Environ Pollut
Some songbirds with high PFAS concentrations exhibit increased antioxidant defenses, indicating that they have managed to protect themselves against potential PFAS-induced oxidative stress, which may impact their overall well being.
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An integrated assessment of ecological and human health risks of per- and polyfluoroalkyl substances through toxicity prediction approaches
Science
18 Sep 2023 | Sci Total Environ
PFOS and PFOA are the most prevalent PFAS in surface water and in humans, and modeling indicates that they result in endocrine disruption and multi-generational behavioral effects.
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Per- and polyfluoroalkyl substances and sleep health in U.S. adults, NHANES 2005-2014
Science
6 Sep 2023 | Environ Res
No indications were found that exposure to four legacy PFAS compounds has a detrimental impact on the self-reported sleep quality of U.S. adults.
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Prenatal and Childhood Per- and Polyfluoroalkyl Substance (PFAS) Exposures and Blood Pressure Trajectories From Birth to Late Adolescence in a Prospective US Prebirth Cohort
Science
29 Aug 2023 | J Am Heart Assoc
Prenatal and childhood PFAS exposures were associated with blood pressure at specific times, but associations were not consistent across all time points or PFAS types.