The Environmental Protection Agency will not test for dioxins as part of their work monitoring an eastern Ohio town after a train carrying hazardous chemicals derailed and cast a large chemical plume into the air, WKBN reported.

A Norfolk Southern train carrying chemicals, including vinyl chloride, derailed on Feb. 3 in East Palestine, Ohio, and a controlled burn was conducted on Feb. 6 to prevent an explosion, which released the chemicals into the air and water. EPA Region 5 administrator Debra Shore said Monday that the agency would not test for dioxins, which are groups of toxic chemical compounds, at the current time, according to WKBN.