The July 14 chemical leak at GFS Chemicals that resulted in a shelter-in-place order for people in Franklinton involved hydrogen bromide, the Ohio Environmental Protection Agency told The Dispatch.

Three environmental groups are suing the EPA, asking a judge to order the agency to reassess its regulations on the chemical.

Hazmat crews safely contained a hydrofluoric acid spill on Highway 205 after a box truck crash Thursday, reopening traffic lanes after delays.