Several counties across Indiana have been contaminated with toxic “forever chemicals”, and now Indiana’s attorney general is suing the people responsible.

The “forever chemicals” are otherwise referred to as PFAS chemicals, said Indiana Attorney General Todd Rokita in a Wednesday press conference.

Rokita said the chemicals resist grease, oil, water and heat, basically allowing the chemicals to remain stable and toxic for years.

Rokita’s lawsuit is targeted at 22 companies responsible for developing the chemicals, not any product that the chemical may have found its way into.