LOS ANGELES, Feb. 15 (Xinhua) -- U.S. experts have expressed grave concerns over the damage by fires and chemical contamination to people and the environment following a disastrous train derailment in the U.S. state of Ohio.
On Feb. 3, a train carrying vinyl chloride, a dangerous colorless gas, derailed in East Palestine of Ohio, near the border with Pennsylvania. About 50 cars crushed onto each other. Many of them contained hazardous chemicals including butyl acrylate and vinyl chloride, which were among the combustible liquids that authorities feared could set off a major explosion.