EDF Health

FDA acts on fluorinated plastic packaging. What are next steps?

Tom Neltner, Chemicals Policy Director and Maricel Maffini, consultant

The Food and Drug Administration (FDA) took an important step last week to protect food from PFAS contamination from plastic packaging. On August 5, the agency sent a letter to manufacturers, distributors, and users of fluorinated polyethylene food contact articles reminding them that these articles must be made under specific conditions to comply with existing regulation or otherwise the food contact articles “are not lawful.” Therefore, the food that contacted them should not be permitted for sale. The agency gave three examples of manufacturing processes that do not comply with the regulation. We flagged concerns with fluorinated plastic packaging in a July blog and applaud the agency for this action.

This significant first step needs to be followed:

  1. Investigate the companies that provided fluorinated plastic packaging for food and cosmetic uses to determine whether their products complied with the law. If not, then alert food manufacturers and retailers so they can recall the adulterated food and cosmetics.
  2. Reassess whether the process FDA approved in 1983 for fluorinating polyethylene generates PFAS and whether it should still be considered safe.

Investigate companies that provided fluorinated plastic packaging

In the letter, FDA’s Office of Food Additive Safety (OFAS) states that “available information indicates that some manufacturers of fluorinated polyethylene produce articles via alternative manufacturing methods from that stipulated in FDA’s regulation.” It identified three specific examples and says that “these alternative processes for fluorination of polyethylene are not compliant with 21 CFR § 177.1615, and are not lawful for use in food contact articles.” The three examples of unlawful manufacturing processes are:

  1. “Fluorination of polyethylene for non-food uses may occur during the fabrication or molding of the container.”
  2. “Use of fluorine gas in combination with other inert diluents such as carbon dioxide, helium, or argon.”
  3. Incorporation of oxygen into the fluorinating mixture to modify the properties of the final container.

A market search shows several brands that have in-mold fluorination of high-density polyethylene (HDPE), (here and here) and another that may use oxygen or other gases in combination with fluorine.

With the letter public, FDA’s Office of Regulatory Affairs (ORA), which handles field inspections and sampling for the agency, should ensure compliance by food manufacturers all along the supply chain. Where it finds a violation, it would manage the recall of the adulterated food.

Reassess whether the allowed use generates PFAS and should still be considered safe

About a week before FDA sent out the letter, the agency responded to our May 2021 FOIA request for the documentation that resulted in its 1983 approval of fluorinated polyethylene packaging at 21 CFR § 177.1615. The approval came in response to a 1979 food additive petition by Union Carbide.

As with most of FDA’s FOIA responses, the 233-page document has extensive redactions of health and safety information. However, two things come through clearly:

  1. Nitrogen and fluorine only: In its petition and communications with FDA, Union Carbide was inconsistent when it explained whether nitrogen was only an example of an acceptable inert gas. FDA scientists demanded clarity and the company agreed that only nitrogen would be allowed. In its recent letter, FDA reminds companies that only this condition is approved.
  2. Fluorinated organics: The petition included studies of the chemicals that migrated into a simulated food such as water or alcohol. The study evaluated the residue that remained after the food simulant was evaporated off. Union Carbide maintained that fluorine in the residue was almost entirely ionic fluorine – the kind added to toothpaste – and showed that the exposure was within tolerated levels. FDA scientists kept pushing back explaining that there was evidence the residue contained substances with a carbon-fluorine bond – a indicator of what we now refer to as PFAS. FDA finally relented, stating that “our general conclusion is that low molecular weight fluorocarbon-oxygen compounds should not be present in significant quantities.” (see page 195 of FOIA response).

We now know that levels of PFAS that were considered insignificant by FDA in the 1980s pose significant risks as evidenced by some of the agency’s recent actions. For those reasons, we reaffirm our call in our July 2021 blog and in the June 2021 citizens petition submitted by 11 organizations to FDA to reassess the safety of PFAS uses, including fluorinated polyethylene.

As part of that reassessment, FDA needs to revisit the concerns raised by the agency scientists in 1983 in light of the risks posed by PFAS. Specifically:

  • Nitrogen: In its August 5 letter, FDA states that a form of PFAS known as perfluoroalkyl carboxylic acids “can form when the fluorination of HDPE occurs in the presence of oxygen or water, but not in the presence of nitrogen.” However, the agency does not acknowledge that commercially available nitrogen contains contaminants like oxygen. Food-grade nitrogen can have as much as 10,000 parts per million (ppm) of oxygen and 55 ppm of water. These levels could well be sufficient to generate significant amounts of PFAS.
  • PFAS leaching into food: Since the amount of PFAS in food considered “significant” is dramatically lower than in 1983 when FDA made its decision, the agency needs to evaluate whether it is practical – even with the purest nitrogen – to fluorinate plastic without making PFAS.

If the agency determines that the fluorine gas treatment process creates any PFAS, the law explicitly requires that FDA evaluate safety after taking into account the cumulative effects of related substances in the diet that have related health impacts. As with virtually all of its decisions, the agency failed to do that for its 1983 approval. Given the pervasive presence of PFAS in the environment and the additional PFAS FDA authorized for use in food packaging, this type of review is even more important.

Conclusion

In summary, FDA’s August 5, 2021 letter is an important step in the effort to protect consumers from PFAS in food. Now the agency needs to investigate the companies that provided fluorinated plastic packaging for food and cosmetic uses to determine whether the products complied with the law and take action. It must also reassess the safety of the packaging even if it complies with the specific conditions in its 1983 approval.

Also posted in FDA, Food, PFAS, Regulation, Uncategorized / Tagged , , , , | Comments are closed

Whistleblower revelations about EPA TSCA new chemical reviews

Richard Denison, Ph.D., is a Lead Senior Scientist.

[I delivered these comments at the July 28, 2021 webinar titled “Toxic Chemicals, Whistleblowers, and the Need for Reform at EPA
cosponso
red by Public Employees for Environmental Responsibility (PEER), NY PIRG, and EDF.  [A recording of the webinar is available here.]  The webinar followed on whistleblower disclosures in a complaint filed by PEER and the first in what will be a series of articles by Sharon Lerner in The Intercept detailing the allegations.]

I have long described the EPA new chemicals program as a “black box.”  For decades, it has operated almost entirely out of public view, in multiple respects:

  • Excessive confidentiality claims and withholding of information from the public have been standard operating procedures.
  • A purely bilateral mode of operating developed, where the only parties in the room are EPA and the chemical industry.
  • The inability of the public to access information and meaningfully participate has severely limited public input and scrutiny.
  • As a result, a highly insular, almost secretive program culture arose over time, one where EPA has often viewed its only stakeholders to be the companies seeking quick approval of their new chemicals.
  • In sum, private interests trumped public interests.

TSCA reform sought to address key problems

The 2016 amendments to TSCA significantly overhauled the new chemicals provisions of the then-40-year-old law, seeking to rebalance those interests to some extent:

  • EPA for the first time is required to make a safety finding for each new chemical and explain the scientific basis for its finding.
  • Lack of sufficient information in and of itself is grounds for restricting a chemical and/or requiring testing. Before, unless EPA had enough data to show potential risk, it simply dropped the chemical from further review and allowed it onto the market.
  • Companies’ ability to simply assert their submissions are confidential has been reined in in several ways.

To be sure, the amendments did not address all of the program’s problems.  For example, despite the fact that the vast majority of new chemicals lack basic safety data, requiring companies to provide a minimum set of information – as many other countries do for new chemicals – was a bridge too far in the face of massive industry opposition.  The revelations indicate this is still a big problem:  Despite TSCA’s mandate that EPA restrict or require testing of chemicals lacking sufficient information, that has not been happening.  EPA still excessively relies on estimating a new chemical’s potential risks using models and extrapolations of data from other chemicals – approaches that have serious limitations, introduce large uncertainties, and are themselves a black box.

Enter the Trump EPA – the damage done

Immediately after the 2016 reforms, there were signs that EPA was starting down a better path.  But under the last Administration that progress was quickly reversed and the worst features of the pre-reform program came roaring back.  Indeed, where the program ended up was worse than before TSCA reform.  Clearly, the new revelations vividly show that – and how far we have to go, both in implementing the reforms and in changing the disturbing culture that still pervades the program.  What strikes me about the whistleblowers’ allegations is that they all cut in industry’s favor, removing or downplaying risks the scientists had flagged.  This argues against these simply being cases of scientific disagreement and points to a systemic problem.  Read More »

Also posted in Industry Influence, TSCA Reform, Worker Safety / Tagged , , , | Read 3 Responses

State legislation requires replacement of ¼ of the country’s lead pipes

Tom Neltner, Chemicals Policy Director

With the recent passage of excellent legislation in Illinois and New Jersey, one out of every four of the nation’s lead service lines (LSLs) is on a mandatory schedule to be fully replaced, with strict limits on partial replacement in the interim. These states now join Michigan in leading the way on replacing lead pipes– made all the more important because they have some of the highest numbers of LSLs in the country.

Both the Illinois and New Jersey laws[1] were the result of extensive negotiations between stakeholders and were passed with broad bipartisan support. We applaud the bill sponsors and the advocacy organizations that made it happen.

The most significant difference between the three state policies is their deadlines for utilities to fully replace the LSLs:

  • Illinois: range of 15 years to 50 years depending on a given utility’s number of LSLs.
  • New Jersey: 10-year deadline with an option to extend to 15 years
  • Michigan: 20-year deadline.

Read More »

Also posted in Drinking Water, EPA, lead, Regulation, States / Tagged , , | Comments are closed

Finally—EPA takes steps to unify its approach to the evaluation of chemicals for cancer and non-cancer endpoints

Jennifer McPartland, Ph.D., is a Senior Scientist, and Lariah Edwards, Ph.D., is an EDF-George Washington University Postdoctoral Fellow

A recent article in Inside EPA ($) indicated that the US EPA’s Integrated Risk Information System (IRIS) will begin piloting a “unified approach” to the evaluation of chemicals for cancer and non-cancer endpoints. Specifically, it appears that the program intends to develop analyses demonstrating how a unified approach could work as supplements to some of its chemical assessments. This represents a major step forward in advancing the science of chemical assessment at EPA and is responsive to recommendations the scientific community and stakeholders have been making for years.

By way of background, chemical regulatory assessments generally assume that if a chemical is a genotoxic carcinogen, there is no exposure threshold for the effect. This means that across a diverse population, some level of risk for developing cancer exists at any level of exposure. Traditionally for all other toxicity endpoints, EPA and other regulatory agencies typically have assumed that there is a bright-line exposure threshold below which no adverse health effect will be seen.

This bifurcated approach to characterizing chemical hazards and risks is not scientifically supported. The assumption that there are “safe” exposure thresholds for all non-cancer endpoints ignores real-world variability in exposure and susceptibility across the human population.  This variability influences whether any particular person or group will experience an adverse effect, and includes such factors as: co-exposures to other chemical and non-chemical stressors and differences in susceptibility that may arise from things like genetic differences or underlying health conditions.

Read More »

Also posted in EPA, States / Tagged | Comments are closed

Beyond paper: PFAS linked to common plastic packaging used for food, cosmetics, and much more

Tom Neltner, Chemicals Policy Director, Maricel Maffini, consultant, and Tom Bruton with Green Science Policy Institute. 

Update August 11, 21 – Added FDA’s Response to FOIA.

Results from an Environmental Protection Agency (EPA) investigation into PFAS-contaminated pesticides have much broader, concerning implications for food, cosmetics, shampoos, household cleaning products, and other consumer products, as well as recycling. This investigation, first announced earlier this year, found that fluorinated high-density polyethylene (HDPE) containers used for pesticide storage contained a mix of short and long-chain per- and polyfluorinated alkyl substances (PFAS), including PFOA, that leached into the product. From what EPA can tell, the PFAS were not intentionally added to the HDPE containers but are hypothesized to have been produced when fluorine gas was applied to the plastic.

Since EPA released its investigation, we have learned the disturbing fact that the fluorination of plastic is commonly used to treat hundreds of millions of polyethylene and polypropylene containers each year ranging from packaged food and consumer products that individuals buy to larger containers used by retailers such as restaurants to even larger drums used by manufacturers to store and transport fluids.

The process of polyethylene fluorination was approved by the Food and Drug Administration (FDA) in 1983 for food packaging to reduce oxygen and moisture migration through the plastic that would cause foods to spoil. The fluorination process forms a barrier on the plastic’s surface and it also strengthens the packaging.

Fluorination of plastic leading to the inadvertent creation of PFAS may be another reason these ‘forever chemicals’ show up in many unexpected places. This significant source of PFAS contamination needs to be addressed. Much remains to be resolved as FDA and EPA actively investigate this new source of PFAS; however, preventive steps need to be taken quickly, especially since other PFAS-free barrier materials are available as alternatives.

Growing evidence links PFAS to a wide range of serious health effects – from developmental problems to cancer.

Read More »

Also posted in EPA, FDA, Health Science, PFAS, Regulation / Tagged , , | Comments are closed

Getting chemical safety back on track 5 years after TSCA reform

Five years ago, President Obama signed into law the Lautenberg Chemical Safety for the 21st Century Act, which overhauled the country’s chemical safety law to better protect people from toxic chemicals.

In a welcome change to the dismal Toxic Substances Control Act (TSCA) reform anniversaries during the Trump administration, this year we are able to highlight some signs of progress we have seen from the Biden EPA that are getting chemical safety back on track.

Though significant challenges remain and lots of work lies ahead to repair the damage done by the former administration and advance a broader vision of health protection for everyone, here are five ways the Biden administration has started to turn things around on chemical safety:

1. Naming leaders committed to scientific integrity and public health protection

With Michael Regan at the helm of EPA, the agency is already miles ahead of where it stood in the last administration. The critical position for overseeing TSCA implementation at EPA is the leader of the Office of Chemical Safety and Pollution Prevention. Fortunately, a chemist with deep experience on TSCA and other chemical issues from her time on Capitol Hill, Dr. Michal Freedhoff, has been confirmed for the role.

Both Regan and Freedhoff have made strong statements supporting a return to scientific integrity and transparency – which are critical needs to building back trust. Dr. Freedhoff specifically cited how the Trump White House forced EPA scientists to weaken their assessment of the dangerous chemical trichloroethylene, an egregious example of political interference in science-based decision-making.

Read More »

Also posted in EPA, Public Health, Regulation, TSCA Reform / Tagged | Comments are closed