Pollution

The Pa. House Policy Committee was in Darlington to hear from health officials, regulators, and residents impacted by the derailment.

EPA ordered Norfolk Southern to test for dioxins as residents' anxiety about their possible exposure to these toxic chemicals rises.

Workers brought in to clear and rebuild the tracks after the derailment are now complaining of health problems similar to those experienced by residents of East Palestine.

Carnegie Mellon and Texas A&M researchers found high levels of acrolein, a chemical found in manufacturing and formed in combustion. It is considered a hazardous air pollutant.