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.”
The discovery of PFAS—a group of nearly 10,000 highly persistent and human-made toxic chemicals—in widely-used pest management products, such as the mosquito insecticide Anvil 10+10, raises alarm about the extent of PFAS contamination and its potential impact on public health, including contamination of drinking water and waterways. In 2020, testing spearheaded by Public Employees for Environmental Responsibility (PEER) discovered high levels of PFAS in Anvil, subsequently confirmed by EPA in 2021, and in fluorinated products. These findings prompted EPA to investigate the source of the contamination—as the plastic containers leached PFAS.