Science

Per- and polyfluoroalkyl substances and psychosocial stressors have a joint effect on adverse pregnancy outcomes in the Atlanta African American Maternal-Child cohort

14 Oct 2022 | Sci Total Environ

Psychosocial stress including depression, anxiety, stress, and gendered racial stress may amplify associations between an increase in PFAS and reduced birthweight.

Occurrences of legacy and emerging per-and polyfluoroalkyl substances in human milk in China: Results of the third National Human Milk Survey (2017–2020)

12 Oct 2022 | J. Hazard. Mater.

Potential hazard from PFAS exposure through breastmilk, especially from high PFOA exposure, was observed throughout China.

Presumptive Contamination: A New Approach to PFAS Contamination Based on Likely Sources

12 Oct 2022 | ES&T

A contamination model was used to create a map of presumptive PFAS contamination sites in the United States, identifying more than 57,000 sites including industrial facilities, wastewater treatment plants, current or former military sites, and airports.

Use and release of per-and polyfluoroalkyl substances (PFASs) in consumer food packaging in US and Canada

11 Oct 2022 | Chemosphere

Most food packaging does not contain intentionally added PFAS, indicating that PFAS are not necessary for food packaging, yet the thousands of tonnes of PFAS still used have the potential to contaminate the environment and waste streams.

Swimming with PFAS in public and private pools

11 Oct 2022 | Chemosphere

PFBA, PFHxA, PFHpA, PFOA, PFNA and PFBS were detected in every pool sample with most PFOA and PFOS levels above the new US EPA drinking water health advisory limits.

Targeted analysis and total oxidizable precursor assay of several insecticides for PFAS

10 Oct 2022 | JHM Letters

PFOS was detected in 6 out of 10 tested insecticides at concentrations up to 19,200,000 ppt, with 7 additional PFAS found via non-targeted techniques.

An unexpected synergistic toxicity caused by competitive bioconcentration of perfluoroalkyl acid mixtures to Daphnia magna: Further promoted by elevated temperature

7 Oct 2022 | Environ Pollut

High temperatures promote the bioconcentration of PFAA and resulted in the increased toxicity of PFAA mixtures in model species.

An Integrated Approach for Determination of Total Per-and Polyfluoroalkyl Substances (PFAS)

5 Oct 2022 | Environ. Sci. Technol.

This paper describes how to use methods like the total oxidizable precursor assay and suspect screening to more fully characterize PFAS present in soil and aqueous mixtures as such screenings can help inform the potential for PFAS exposure.

Maternal Exposure to Per- and Polyfluoroalkyl Substances (PFAS) and Male Reproductive Function in Young Adulthood: Combined Exposure to Seven PFAS

5 Oct 2022 | Environ Health Perspect

Consistent inverse associations between exposure to maternal PFAS and semen quality were found in a sample of the Danish population.

Preconception Exposure to Perfluoroalkyl and Polyfluoroalkyl Substances and Couple Fecundity: A Couple-Based Exploration

4 Oct 2022 | Environ. Int.

Preconception exposure to 6:2 diPAP and PFHpA in women may have the potential to impair couples’ fertility.

Uptake of per-and polyfluoroalkyl substances (PFAS) by soybean across two generations

3 Oct 2022 | J. Hazard. Mater. Adv.

Considering widespread PFAS contamination and the ability of soybean plants to uptake PFAS, soybean seeds may need to be quantified for PFAS concentrations before their use in agricultural fields.

[Letter to the editor] The conundrum of the PFOA human half-life, an international collaboration

1 Oct 2022 | RTP

Campbell et al. (2022) propose that many studies estimating the human half-life of PFOA are significantly confounded by lack of accounting for ongoing exposures, which would inflate estimates, and by the presence of branched isomers, which could deflate estimates for linear PFOA.

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