A solvent and processing aid used to produce pharmaceuticals, chemicals, agrochemicals, and other products could pose an unreasonable risk to workers making and using it, the EPA said June 28.
If the Environmental Protection Agency makes its preliminary conclusion about the solvent, 1,4-dioxane (CAS No. 123-91-1), final following public comment and scientific critique, the agency is required to propose a rule within a year to reduce the unreasonable risks it identified.
That rule, however, wouldn’t target water utilities’ specific concerns about reducing concentrations of 1,4-dioxane in the source water supplies they treat when processing them into safe drinking water. ...