Groups Sue EPA Over Toxic Datacenter Chemical Approvals

Environmental groups have filed a lawsuit against the U.S. Environmental Protection Agency (EPA) challenging the Trump administration's approval of two new chemicals for use in datacenters. The lawsuit, filed on August 26, 2026, warns that exposure to these compounds can lead to "sudden death" and a spectrum of severe health issues, including cancer, corrosive eye damage, neurological harm, and reproductive problems. These chemicals are identified as photoacid generators, which also appear to be per- and polyfluoroalkyl substances (PFAS), often referred to as "forever chemicals." The extent of their PFAS classification is uncertain due to significant redactions in EPA documentation. PFAS chemicals are widely utilized in the manufacturing of semiconductors, a critical component in the operation of datacenters. The plaintiffs argue that the EPA's expedited approval process for these substances, without adequate public disclosure or comprehensive risk assessment, poses an unacceptable threat to public health and the environment. The lawsuit specifically targets the EPA's alleged failure to conduct thorough environmental and health impact studies before greenlighting the import and immediate deployment of these chemicals across the United States. Datacenters, which house the servers and infrastructure for cloud computing and digital services, are rapidly expanding in number and scale, increasing the potential for widespread exposure to these approved substances. The legal challenge seeks to halt the use of these chemicals and compel the EPA to undertake a more rigorous review process that prioritizes safety and transparency. This action highlights growing concerns among environmental advocates and public health organizations regarding the regulation of industrial chemicals, particularly those with persistent environmental and health implications. The redacted nature of key EPA documents further fuels accusations of a lack of transparency and accountability in the regulatory oversight of potentially hazardous materials. The groups involved in the lawsuit are advocating for stricter regulations and a more precautionary approach to chemical approvals, especially for substances used in rapidly growing industries like data storage and processing. The case is expected to scrutinize the EPA's decision-making framework and its adherence to environmental protection mandates under federal law. The potential long-term consequences of widespread exposure to these "forever chemicals" in proximity to populated areas are a central focus of the legal complaint.