Exposure to two compounds approved can result in ‘sudden death’ and range of other serious health risks, lawsuit warns

The Trump administration has approved two new datacenter chemicals to which exposure can result in “sudden death” and a range of other serious health risks, like cancer, eye corrosion, neurological damage and reproductive harm, a new lawsuit warns.

The two compounds approved by the Environmental Protection Agency (EPA) for import and immediate use in facilities across the US are photoacid generators that also appear to be Pfas “forever chemicals”, though it is unclear because much of the EPA documents are redacted. Some Pfas are commonly used in the production of semiconductors.

This article was amended on 26 August 2026. A previous version said the EPA concedes that the chemicals present an “unreasonable risk” to workers. It has been updated to say the chemicals may present an unreasonable risk.

Trump administration proposes new rule to dismantle requirement for datacenters to publicly report air pollution

A new rule proposed by the Trump administration aims to kill public notification for datacenter air pollution, public health advocates warn, and allow emission permits to be issued behind closed doors.

The datacenters are often sources of nitrogen oxide, which helps form ozone, carbon monoxide and heavy metals, among other pollutants.