A train derailed into the Yellowstone River in Montana on June 24 leading state agencies to warn people not to eat fish caught in the Yellowstone River in the area where the train, which was carrying chemicals, went off the tracks, according to the Montana Department of Fish, Wildlife and Parks. The department’s staff collected five mountain whitefish and five rainbow trout below the derailment site for contaminant testing as a follow-up to the incident. The derailment caused a bridge over the Yellowstone River to collapse, sending several cars into the water, Stillwater County officials said at the time. Phenanthrene was one of the chemicals in question and is a polycyclic aromatic hydrocarbon (PAH). PAHs are found in products such as oil, gas, plastics, and pesticides.