As residents continue to wait for action in Washington D.C., hundreds of East Palestine, Ohio residents are gearing up for a new court battle. A new lawsuit claims that Norfolk Southern and agencies at all levels of government failed the communities in Ohio and Pennsylvania.

On Feb. 3, 2023, a Norfolk Southern freight train carrying hazardous materials derailed after a railcar's wheel bearing overheated, causing a fire. Three days later, officials conducted a "controlled release" of several tank cars that were filled with vinyl chloride, a toxic and flammable gas that can cause certain cancers, to prevent an explosion.

Two years after the derailment, researchers are stepping in to track how low-level, long-term environmental exposures are affecting the health of East Palestine residents.

More than 700 current and former East Palestine residents have filed a new lawsuit two years after the derailment sent toxic chemicals into the air, water, and soil. KDKA's Jennifer Borrasso spoke with a few of those residents.