A newly published study examines the spread and impact of shorter chain per- and polyfluoroalkyl substances (PFAS).  The authors titled the study “Elevated Levels of Ultrashort- and Short-Chain Perfluoroalkyl Acids in US Homes and People”.  The Environmental Science & Technology journal published this study on October 11, 2023.  The study scrutinizes the presence of short chain PFAS in homes and their subsequent impact on human health.

Background on PFAS

PFAS are a group of man-made chemicals widely used in consumer products and industrial applications. PFAS are resistant to water, oil, and heat. This makes them useful in various products like non-stick cookware, waterproof clothing, and firefighting foams. However, their persistence raises significant environmental and health concerns.

Phasing Out of Certain PFAAs

Due to these concerns, there is a global effort to phase out two specific PFAS.    These are perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA). Both contain 8 carbons. Their phase-out is due to their persistence and toxicity, particularly as it impacts drinking water sources.

Replacement Chemicals and Concerns

Industries are now using shorter-chain perfluoroalkyl acids (PFAAs) as replacements for PFOA and PFOS. 

In length, PFAS compounds vary between 4 and 12 molecules. “Long-chain” PFAS compounds typically have six or more carbons while “short chain” compounds usually consist of 8 carbons or less. The study raises concerns about these short chain replacements which are now widely detected in the environment. The spread of these short chain PFAA’s in the environment raises concerns regarding the impact on human health.

Study Methodology and Sampling

The researchers of this study aimed to measure 47 PFAS and their precursors. They collected samples from homes in Indiana. The sampling included dust and drinking water. They also collected blood and urine samples from the residents.

Surprising Findings on PFAA Levels

The study’s findings are significant. Ultrashort-chain (with 2 or 3 carbons) and short-chain (with 4–7 carbons) PFAAs were most abundant. They appeared in dust, water, blood, and urine. On average, they made up 69–100% of the total PFAS concentrations. Trifluoroacetic acid (TFA, C2) and perfluoropropanoic acid (PFPrA, C3) were predominant.

Exposure Pathways and Health Implications

The study identified key exposure pathways for these short chain replacement PFAA’s. It found correlations between certain PFAAs in dust or water and those in serum. This suggests that dust ingestion and drinking water consumption are the most significant exposure pathways.

Implications of the Study

The study shows that short chain PFAAs are present in homes and humans like the PFOA and PFOS they replaced. It confirms the widespread presence of shorter chain PFAAs in the environment and bio-uptake into humans.  This widespread presence highlights the need to fully understand the health effects of these shorter chain replacement PFAS.  The study’s insights also emphasize the importance of awareness and the need to develop intervention strategies.

Health Risks

The study suggests that regular exposure, even at low levels, could have significant health implications. This is particularly concerning for vulnerable populations. These include children and people with pre-existing health conditions.

The study’s findings suggest that everyday environments expose people to shorter chain PFAS.  Though the health effects of PFOA and PFOS are confirmed, the negative impacts of these replacement chemicals are presently unknown. The federal government must ensure that these replacements are safer than the PFOA and PFOS they replaced. 

Need for Regulatory Action

The study is a call to arms for more research and potential regulatory measures to protect public health. Regulatory action could include setting limits on the use of these chemicals. Regulation could also require monitoring their presence in the environment.  In the extreme, the government could phase out these shorter chain PFAS to spur the development of safer alternatives.

OUR team

We prefer doing to talking (except in court), We take the bull by the horns and give you clear and practical advice. Personal, to the point, and in plain language. Any questions? Feel free to call or to drop by.

After reviewing your medical costs, lost wages, and pain and suffering damages, we can help you understand what your case is worth and plan a road map going forward.
After reviewing your medical costs, lost wages, and pain and suffering damages, we can help you understand what your case is worth and plan a road map going forward.

$1.056 billion verdict against Exxon Mobil

If you think you may have a claim and need legal help to hold those parties responsible for damage that they have caused, contact an attorney from our firm.

Stag Liuzza fights industry giants across the country and holds them accountable for their actions. We strive to ensure that communities have access to safe drinking water, clean air, and a healthy environment.

stagliuzza.com is operated and provided by Stag Liuzza, LLC responsible attorneys Michael G. Stag and Ashley M. Liuzza. Stag Liuzza, LLC is officed in New Orleans, LA, and our attorneys are licensed in Louisiana and Mississippi.

Nothing on this site should be taken to establish an attorney-client relationship with us unless and until a contract for representation is signed. The attorneys of Stag Liuzza are licensed in Louisiana and Mississippi and may associate counsel licensed in other jurisdictions as necessary.

Past results do not guarantee any similar result or outcome in your claim. Each claim is different.

This website uses cookies to ensure you get the best experience on our website.