(Beyond Pesticides, April 24, 2024) On April 16, 2024, the U.S. Environmental Protection Agency (EPA) posted an “update” to the Draft Herbicide Strategy Framework (Draft Herbicide Strategy Framework to Reduce Exposure of Federally Listed Endangered and Threatened Species and Designated Critical Habitats from the Use of Conventional Agricultural Herbicides) that was released last summer, weakening aspects of the agency’s efforts to “protect” endangered species from herbicide use. The update outlines three types of modifications to the Draft Strategy, including “simplifying” its approach, increasing growers’ “flexibility” when applying mitigation measures, and reducing the mitigation measures required in certain situations. By reducing the stringency of the Strategy, advocates are again questioning EPA’s commitment to fulfilling legal requirements under the Endangered Species Act (ESA) or protecting endangered species and their habitats in the midst of an unprecedented rate of global extinction. ESA is celebrated as one of the most far-reaching conservation laws globally, credited with preventing the extinction of 99 percent of those species the government targets for protection, according to the U.S. Fish and Wildlife Service (USFWS). ESA establishes a framework to categorize species as “endangered” or “threatened,” granting them specific protections. Under ESA, EPA is required to consult with relevant agencies […]

(Beyond Pesticides, April 17, 2024) With headlines drawing public attention to the contamination of drinking water after years of federal government neglect, the U.S. Environmental Protection Agency (EPA) announced on April 10 new standards to reduce public exposure to PFAS, or per- and polyfluoroalkyl substances, commonly referred to as “forever chemicals” because of their persistence. EPA has finalized a National Primary Drinking Water Regulation (NPDWR) for six PFAS, including PFOA and PFOS, which EPA has recognized have no safe level of exposure, regulating new chemicals for the first time since the 1996 amendments to the Safe Drinking Water Act (SDWA). PFAS persistence and bioaccumulation in humans, wildlife, and the environment is due to the strength of a resulting fluorine–carbon atom bond. PFAS contamination of drinking water, surface and groundwater, waterways, soils, and the food supply—among other resources—is ubiquitous worldwide. PFAS is used in everyday products, including cookware, clothes, carpets, as an anti-sticking and anti-stain agent, in plastics, machinery, and as a pesticide. The action was welcomed by environmentalists and public health advocates as an important step but left many concerned that any level of exposure to these chemicals is unacceptable and critical of EPA’s ongoing failure to act despite years […]

(Beyond Pesticides, April 15, 2024) At first, some thought this was an April Fools’ announcement by pranksters like the YES men. Put out an announcement pretending to be the U.S. Environmental Protection (EPA) with a warning to farmworkers that they are being exposed to a highly hazardous weed killer, dacthal (dimethyl tetrachloroterephthalate or DCPA), offering no protection. The announcement says, “EPA is warning people of the significant health risks to pregnant individuals and their developing babies exposed to DCPA” and notes that the agency will be “pursuing” further action at some unspecified time in the future. But, this was no joke, especially for farmworkers. The agency somehow believed it was fulfilling its statutory duty to protect farmworkers and their families with a warning that a chemical they may be exposed in their workplace and possibly their homes and schools is harming them and, for those pregnant, destroying the health of their fetus. “In light of the workplace reality for farmworkers, the lack of labor protections, and the documented deficiencies in the existing worker protection standards, it is difficult to conceive of how EPA officials think this warning is protective in any way. And in light of what agency officials know, or […]

(Beyond Pesticides, April 11, 2024) Scientists are moving forward in testing an agroecological method of “push-pull” pest management (reducing the attractiveness of the target organism and luring pest insects towards a trap) to fight the Asian citrus psyllid (ACP) in Florida orange groves, as it spreads a plant disease known as the pathogenic bacteria huanglongbing (HLB), also known as citrus greening, which is deadly to citrus trees. The disease is spread by the pathogenic bacteria Candidatus Liberibacter asiaticus (CLas).  The chemical-intensive, or conventional, citrus industry is under intense pressure to find alternatives, as synthetic antibiotic use for this purpose has been successfully challenged in court. ACP is the carrier, or vector, for HLB, spreading it through the citrus groves and killing the trees. The chemical-intensive industry has focused on using antibiotics, which the environmental and public health community has rejected because of serious medical concerns associated with life-threatening bacterial resistance to antibiotics used to protect humans. A federal district court decision in December 2023 found illegal the U.S. Environmental Protection Agency’s (EPA) decision to register the antibiotic streptomycin in Florida citrus without adequate review of its impact on endangered species. The streptomycin lawsuit, filed in 2021 by a coalition of […]

(Beyond Pesticides, April 9, 2024) The United States Court of Appeals for the Fifth Circuit, in an opinion authored by Circuit Judge Cory T. Wilson, has vacated an action by the U.S. Environmental Protection  Agency (EPA) that had ordered the Texas-based manufacturer Inhance Technologies, L.L.C. to stop producing plastic containers that leach toxic per- and polyfluoroalkyl substances (PFAS) into pesticides, household cleaners, condiments, and additional products. EPA has taken action after the agency determined that the PFAS created during the fluorination process “are highly toxic and present unreasonable risks that cannot be prevented other than through prohibition of manufacture.” While the court is not challenging EPA’s authority to determine the hazards associated with PFAS exposure to be unacceptable, on a technicality, it is finding that the agency used the wrong section of the Toxic Substances Control Act (TSCA), Section 5, which the court says is focused on new uses. According to the Court, “The EPA is just not allowed to skirt the framework set by Congress by arbitrarily deeming Inhance’s decades-old fluorination process a “significant new use,” even though EPA’s awareness of the PFAS contamination was “new” to the agency and not disclosed by the manufacturer. Even if EPA were […]

(Beyond Pesticides, April 8, 2024) When Mexico in 2020 decided to protect its traditional varieties of corn for reasons of health, safety, environmental protection, and food sovereignty with the banning of the importation of genetically engineered (GE or GM-genetically modified) corn by 2024, the powerful biotech industry and the U.S. government began a concerted campaign to stop the country’s efforts. With the opposition spearheaded by BIO, “the world’s largest trade association representing biotechnology companies, academic institutions, state biotechnology centers and related organizations across the United States and in more than 30 other nations” (as described in its March 15 press release), including companies like Bayer/Monsanto, the U.S government is calling Mexico’s action a trade barrier. The U.S. is invoking the U.S.-Mexico-Canada Agreement (USMCA), the trade agreement that replaced the North America Free Trade Agreement (NAFTA) in 2020. This is just one of the latest examples of corporate power reigning over U.S. environmental and economic policies. Mexico has already announced a delay in the planned April 1 ban on the importation, production, distribution, and use of glyphosate. Interestingly, this is all happening despite reports that the Biden administration is seeking to “tackle corporate abuses,” which is apparently limited  to tax reform and […]

(Beyond Pesticides, April 2, 2024) There is a nascent capital investment effort in the transition to certified organic agriculture beginning to take hold across the U.S., something advocates say is critically needed to meet the current and escalating existential health threats, biodiversity decline, and climate emergency. Mad Agriculture has received early commitments from the Rockefeller Foundation, Builders Vision, and nearly a dozen other investors to contribute to the $50 million Perennial Fund II (PFII), to advance the growth of “regenerative organic” agriculture. Forbes is reporting that PFII’s primary objective is to jumpstart the organic land transition, given that this slice of U.S. agriculture makes up less than one percent of total farmland in the country relative to the European Union’s nearly 10 percent of total farmland. “We commend the work of Mad Agriculture in harnessing the spirit of organic agriculture and mobilizing the private sector to invest in farmers who engage in regenerative organic agricultural practices,” said Max Sano, organic program associate at Beyond Pesticides. In Rockefeller Foundation’s press release announcing their early commitment, Mad Capital co-founder Brandon Welch spoke on their vision: “We are aiming to build a bridge between two distant worlds that need one another to transition […]

(Beyond Pesticides, April 1, 2024) Comments are due 11:59 pm EDT, Wednesday, April 3. For the public comment period—deadline Wednesday, April 3—in the lead up to the National Organic Standard Board (NOSB) meeting, advocates have identified the following priority issues: Getting plastics our of organic; Removing endocrine disrupting nonylphenols (NPs) and nonylphenol ethoxylates (NPEs) iodine from dairy production and replace with available alternatives; and Continuing to improve the science supporting ongoing decisions of the NOSB. (See below for details and opportunity to submit comments on these with one click!) Previously, Beyond Pesticides has reported on three additional priority issues, including; Reject the petition to allow unspecified “compostable materials” in compost allowed in organic production; Eliminate nonorganic ingredients in processed organic foods as a part of the Board’s sunset review of allowed materials; and  Ensure that so-called “inert” ingredients in the products used in organic production meet the criteria in OFPA with an NOSB assessment.  (Please see the prior action on these issues and submit comments, if not done previously.) Beyond Pesticides asks the public to join in commenting on priority issues that protect health and the environment as part of the upcoming NOSB meeting. The NOSB is receiving written comments from the […]

(Beyond Pesticides, March 25, 2024) Because of their widespread infiltration into the environment and the bodies of all organisms, including humans, plastics contamination requires a holistic strategy to protect life— with consideration given to practices and chemical use that reduce or eliminate harm. Pesticides and other toxic chemicals are adsorbed (adhered) to microplastics, resulting in bioaccumulation and widespread contamination. This adds to the complexity of the problem, which is largely ignored by federal regulatory agencies. While most environmental policies attempt to clean up or mitigate health threats, new data reinforces the need to stop the pipeline of hazardous chemicals, wherever possible. With new data on the harm associated with plastics and related contamination, it becomes urgently necessary for all government agencies to participate in a comprehensive strategy to eliminate plastics and pesticides. Beyond Pesticides points to the evolving science on plastics contamination and their interaction with pesticides as yet another reason to transition to holistic land management systems that take on the challenge of eliminating hazardous chemical use. Organic land management policy creates the holistic systems framework through which plastics can be eliminated. >> Tell USDA, EPA, and FDA to create strong restrictions on plastics in farming, water, and food. […]

(Beyond Pesticides, March 18, 2024) Comments are due by 11:59 pm EDT on April 3, 2024. Organic standard setting provides for democratic input, full transparency, and continuous improvement. The current public comment period is an important opportunity for the public to engage with the organic rulemaking process to ensure that the National Organic Standards Board (NOSB) and the USDA National Organic Program uphold the values and principles set forth in the Organic Foods Production Act (OFPA). With the threats to health, biodiversity, and climate associated with petrochemical pesticide and fertilizer use in chemical-intensive land management, advocates stress that this is critical time to keep organic strong and continually improving. Organic maintains a unique place in the food system because of its high standards, public input, inspection system, and enforcement mechanism. But, organic will only grow stronger if the public participates in voicing positions on key issues to the NOSB, a stakeholder advisory board. Beyond Pesticides has identified key issues for the upcoming NOSB meeting below! The NOSB is receiving written comments from the public on key issues through April 3, 2024. This precedes the upcoming public comment webinar on April 23 and 25 and the deliberative hearing on April 29 through […]

(Beyond Pesticides, March 6, 2024) With over 2,500 pet deaths and 900 reports of adverse effects to people, an Office of Inspector General (OIG) report, published on February 29, 2024, reveals multiple systemic failures by the U.S. Environmental Protection Agency’s (EPA) Office of Pesticide Programs (OPP), citing inadequate safety reviews of Seresto pet collars. The report, The EPA Needs to Determine Whether Seresto Pet Collars Pose an Unreasonable Risk to Pet Health, concludes, “The EPA’s response to reported pesticide incidents involving Seresto pet collars has not provided assurance that they can be used without posing unreasonable adverse effects to the environment, including pets.” At the time the animal effects made headlines in 2021, the agency defended the product’s registration, telling the media that, despite these incidents, EPA deemed Seresto collars “‘eligible for continued registration’ based on best available science, including incident data… No pesticide is completely without harm, but EPA ensures that there are measures on the product label that reduce risk.” Despite the scathing criticism, EPA maintains the position that it conducted an adequate review of the two active insecticide ingredients in the pet collars—the neurotoxic insecticide flumethrin, and the notorious neonicotinoid imidacloprid—proven to have adverse effects on the endocrine system as […]

(Beyond Pesticides, March 4, 2024) With 14.7 million children and adolescents in the U.S. recognized as obese by the Centers for Disease Control and Prevention (CDC) and the established connection with endocrine disrupting contaminants, including many pesticides, Beyond Pesticides is calling on federal food assistance programs to go organic. The problem of childhood obesity is higher in people of color and, as a result, is an environmental justice issue. According to CDC, the prevalence of childhood obesity is “26.2% among Hispanic children, 24.8% among non-Hispanic Black children, 16.6% among non-Hispanic White children, and 9.0% among non-Hispanic Asian children.” While childhood obesity is recognized as a serious problem, the National School Lunch Program of the U.S. Department of Agriculture (USDA)—although improved by the Healthy, Hunger-Free Kids Act of 2010—still provides lunches laced with obesogenic pesticides. To take meaningful steps against childhood obesity, school lunches must be organic. The program served 4.9 billion meals in fiscal year 2022 in over 100,000 public and nonprofit schools, grades Pre-Kindergarten-12. Contrary to popular opinion, the blame for the obesity epidemic cannot be attributed solely to diet and exercise broadly, but relates directly to pesticide and toxic chemical exposures, including residues in food, that may lead […]

(Beyond Pesticides, February 16, 2024) A report released in January, US pesticide regulation is failing the hardest-hit communities. It’s time to fix it, finds “people of color and low-income communities in the United States and around the world continue to shoulder the societal burden of harmful pollution.” More specifically, the authors state that “ongoing environmental injustice is the disproportionate impact these communities suffer from pesticides, among the most widespread environmental pollutants.” The report follows an earlier article by the same lead authors and others (see earlier coverage) on the long history of documented hazards and government failure to protect farmworkers from pesticide use in agriculture. In a piece posted by Beyond Pesticides earlier this week, the serious weaknesses in the worker protection standard for farmworkers are documented.   The latest report was led by Nathan Donley, environmental health science director at the Center for Biological Diversity and Robert Bullard, known as the “Father of Environmental Justice” and executive director of the Robert D. Bullard Center for Environmental and Climate Justice at Texas Southern University in Houston. In addition to these authors, the 2022 review was coauthored by Jeannie Economos of the Farmworker Association of Florida, Iris Figueroa of Farmworker Justice, Jovita […]

(Beyond Pesticides, February 15, 2024) The latest U.S. Department of Agriculture (USDA) pesticide residue report, the 32nd Pesticide Data Program (PDP) Annual Summary report, released in January, finds that over 72 percent of tested commodities contain pesticide residues (27.6 percent have no detectable residues), mostly below the level the U.S. Environmental Protection Agency (EPA) has set for tolerances (allowable residues) whose safety standards have been called into question by advocates. USDA spins its report findings as a positive safety finding because, as the Department says, “[m]ore than 99 percent of the products sampled through PDP had residues below the established EPA tolerances.” USDA continues, “Ultimately, if EPA determines a pesticide use is not safe for human consumption, EPA will mitigate exposure to the pesticide through actions such as amending the pesticide label instructions, changing or revoking a pesticide residue tolerance, or not registering a new use.” As Beyond Pesticides reminds the public annually when USDA uses the report to extol the safety of pesticide-laden food, the tolerance setting process has been criticized as highly deficient because of a lack of adequate risk assessments for vulnerable subpopulations, such as farmworkers, people with compromised health or preexisting health conditions, children, and perhaps, […]

(Beyond Pesticides, January 22, 2024) Today, Monday, January 22, is the last day for public comment on a three-year extension of U.S. Department of Agriculture’s (through its Agricultural Marketing Service’s National Organic Program (NOP)) authority to collect information from certifiers entrusted with ensuring compliance with organic standards. Beyond Pesticides, along with allied organizations and organic advocates, is urging USDA to use this process to clarify the need for USDA to collect key information needed to verify compliance with key language in OFPA (Section 6513(b))—a provision that requires farming practices that “foster soil fertility.” Advocates maintain that information on organic farmers’ practices to foster soil fertility, required in the law, is critical to organic integrity, public trust in the organic label, and certifier responsibility. As USDA states, “The Organic Foods Production Act of 1990 (OFPA), as amended (7 U.S.C. 6501–6524), authorized the Secretary of Agriculture to establish the National Organic Program (NOP) and accredit certifying agents to certify that farms and businesses meet national organic standards. Under OFPA, the purpose of the NOP is to: (1) establish national standards governing the marketing of certain agricultural products as organically produced products; (2) assure consumers that organically produced products meet a consistent standard; […]

(Beyond Pesticides, January 11, 2024) In a move to safeguard public and animal health, the U.S. Food and Drug Administration (FDA) warned nine manufacturers and distributors in December last year to stop selling unapproved and misbranded antimicrobial animal drugs, with the director of FDA’s Center for Veterinary Medicine, Tracey Forfa, explaining to the public that “inappropriate use of medically important antimicrobials contributes to the development of antimicrobial resistance, which affects both human and animal health.”  This action and announcement exhibit a higher degree of concern about antimicrobial resistance—understood as a growing worldwide pandemic—than the history and ongoing inaction by the U.S. Environmental Protection Agency (EPA)—resulting in the allowance of widespread nonmedical uses of antibiotics in agriculture and on synthetic (or artificial) turf. Contrary to broad scientific understanding, EPA told a federal appeals court last year that, “There is no data that antibiotic use in agriculture leads to the presence of antibiotic resistance in bacteria of human health concern,” and that “[a]t the present time, there is little evidence for or against the presence of microbes of human health concern in the plant agricultural environment.” The issue of resistance discussed in the scientific literature concerns reduced susceptibility to clinically important antimicrobials, […]

Update: This Daily News is updated to address the organic status of the company cited in the piece, Merchant’s Garden. The article now indicates that the company is certified as organic under a different name (Merchant’s Garden Agrotech) than the name used in the USDA press release.  As a result, their name did not appear in USDA’s Organic Integrity Database (OID) at the time of the original Daily News and Action of the Week posting. USDA updated OID on December 8, 2023, the same day that it received a complaint on this matter from former National Organic Standard Board chair Jim Riddle. The critical focus of the piece remains the same: It is not disclosed to consumers on food products labeled “organic” when that food or ingredients are grown hydroponically. Beyond Pesticides, as indicated in the article, views hydroponic as a conventional growing practice that does not meet the spirit and intent of the organic system, as defined in the Organic Foods Production Act.  (Beyond Pesticides, December 11, 2023) U.S. Department of Agriculture (USDA) Secretary Tom Vilsack announced on November 27, 2023 funding that appears to be supporting the expansion of “organic” hydroponic, an approach to food production that has […]

(Beyond Pesticides, November 9, 2023) Two-hundred-foot pesticide spray “buffer zones” around 4,028 U.S. elementary schools contiguous to crop fields—according to data evaluated by Environmental Working Group—are threatened by potential Farm Bill amendments now under consideration. Legislative language, if adopted, would take away (preempt) the authority of states and local jurisdictions to protect children and restrict agricultural pesticides used near schools. Pesticide drift is a widespread problem throughout the U.S. that has attracted national attention in recent years because of crop damage caused by the weed killer dicamba in numerous midwestern states. In the face of the U.S. Environmental Protection Agency’s (EPA) failure to mitigate drift hazards, states enact limits on when and how pesticides can be used, establish buffer zones around application sites, and in some cases, ban uses. In 2018, Arkansas banned dicamba use from mid-April through the end of October (and survived a Monsanto challenge to the ban. For a historical perspective on the drift issue, see Getting the Drift on Pesticide Trespass. Children, in particular, face unique risks from pesticide and toxic chemical exposures. Due to their smaller body size, they absorb a higher relative amount of pesticides through the food they consume and the air they breathe. Additionally, children’s developing […]

(Beyond Pesticides, October 23, 2023) As the immediate threat of a government shutdown has temporarily subsided, concerns are mounting over the potential threats to food safety in the United States if the government shuts down in mid-November. Experts are warning that a shutdown could jeopardize critical food safety inspections and oversight. A partial government shutdown in 2019 disrupted federal oversight of food monitoring for various pathogens and pesticides, as labs were shuttered, with agency employees furloughed. See Beyond Pesticide’s reporting about food safety risks during the last government shutdown. However, it should be noted that residues of pesticides in food continue to raise concerns about safety of food grown in chemical-intensive (conventional) farming operations. The U.S. Department of Agriculture’s (USDA) contingency plans dictate that the Food Safety and Inspection Service (FSIS) continue its regulatory inspection of meat, poultry, and egg products, as mandated by law. However, it is important to note that the FSIS will operate with a reduced workforce, with a portion of employees deemed “essential personnel” for food safety operations. Meanwhile, the Department of Health and Human Services (HHS), which includes the Food and Drug Administration (FDA), is also preparing for a potential shutdown. According to HHS’s contingency […]

(Beyond Pesticides, September 25, 2023) It happens twice a year. The transparent process of a stakeholder board of farmers, consumers, environmentalists, a scientist, retailer, and certifier get together as members of the National Organic Standards Board (NOSB) and vote on allowable materials and standards in organic agriculture. This Congressionally mandated board has authorities not often given to people outside of government—authorities to determine what should be allowed in organic food production, under assessments of synthetic and natural substances. And the underlying law that makes this happen, the Organic Foods Production Act (OFPA), stipulates that the Secretary of Agriculture may not allow synthetic and prohibited natural materials unless they are recommended by the NOSB. The National Organic Standards Board (NOSB) is receiving written comments from the public, which must be submitted by September 28, 2023. The values and principles embedded in OFPA far exceed the standards of health and environmental protection of any other health and environmental laws, which establish risk mitigation measures to determine allowable harm, under a set of guiding standards that require the board to (i) protect health (from production of inputs to their disposal), (ii) ensure compatibility with organic systems (with determinations that inputs do not hurt […]

(Beyond Pesticides, September 18, 2023) Advocates for organic have consistently maintained that public engagement with the National Organic Standards Board (NOSB) is critical to protecting the values and principles embedded in the Organic Foods Production Act (OFPA). While the NOSB is a stakeholder board that reflects the sectors of the organic community—from consumers, farmers, processors, certifiers, retailers, and scientists—public interaction with the board offers critical input to the NOSB’s decision-making process. Ultimately, Board authority over the National List of Allowed and Prohibited Substances and its advisor relationship to the U.S. Secretary of Agriculture have a direct effect on the underlying decisions that determine the credibility of the U.S. Department of Agriculture (USDA) organic label that is now widely found on products in virtually all grocery stores. A major issue that continues to plague label integrity is the Board’s review of so-called “inert” ingredients in materials allowed in organic. These are potentially toxic ingredients that should be reviewed by the Board, substances not disclosed on labels of products that may be used in organic production or processing. The NOSB has access to the complete list of “inerts” used in organic materials, and advocates are urging the Board to begin immediately its […]

(Beyond Pesticides, September 11, 2023) As environmental groups pursue a legal strategy to challenge the U.S. Fish and Wildlife Service (USFWS) for its failure to protect a wildlife refuge from industrial aquaculture, they are also urging the public to hold Refuge officials accountable to the Refuge Improvement Act with a write-in campaign. (See Take Action campaign below.) Earlier this year, USFWS allowed the establishment of a commercial aquaculture operation that cultivates 34 acres of non-native Pacific oysters within a 50-acre tideland parcel leased  from the Washington State Department of Natural Resources within the Dungeness National Wildlife Refuge. The failure to fully evaluate the compatibility of this use with the purposes of the refuge raises concerns of compliance with the law governing National Wildlife Refuges throughout the country. Beyond Pesticides has said, “USFWS is willing to allow, for private profit, the industrialization of refuge lands for shellfish operations.”  Refuges are critical habitat throughout the U.S. that protect critical ecosystems. According to the lawsuit, the Dungeness National Wildlife Refuge shelters a bay rich in marine life. Eelgrass beds attract brant, shorebirds feed on the tideflats, and ducks find sanctuary in the calm waters. The Refuge is a preserve and breeding ground for more than […]

(Beyond Pesticides, September 6, 2023) In late August, the Office of the Inspector General (OIG) at the U.S. Environmental Protection Agency (EPA) released a report concluding that EPA “took a siloed approach” to the cumulative impacts of chemical exposures and the disproportionate nature of those exposures. This approach keeps different parts of the EPA from coordinating their efforts and hinders understanding of the breadth and depth of chemical exposures. OIG reached this disturbing finding despite the issuance of several executive orders by President Biden requiring EPA to develop policies and actions to assess cumulative impacts of chemical exposures across departments, laws, and environmental media (air, water, bodies, food etc.) and to pay more attention to environmental justice. Beyond Pesticides has stressed that the whole constellation of chemical exposures and effects should be considered when governments set public policies and regulations. Just last March, Daily News covered another OIG report castigating EPA for betraying its mission by failing to address the fact that very high levels of per- and polyfluoroalkyl compounds known as “forever chemicals” have been found in some common pesticides. OIG also berated EPA for succumbing to Donald Trump’s interference with setting toxicity values for the “forever chemical” perfluorobutane […]