To check for phosgene, hydrogen chloride and other possible contaminants, the EPA used a plane-mounted spectrometer to take readings from the air, and a gas monitor on the ground was configured to ...

As of Feb. 13, the Ohio Environmental Protection Agency discontinued air monitoring for hydrogen chloride, saying the threat of vinyl chloride fire-producing hydrogen chloride “no longer exists.” ...

When burned, vinyl chloride gives off hydrogen chloride and the toxic gas phosgene. The Environmental Protection Agency said Tuesday that it had stopped monitoring the air in East Palestine for ...

When vinyl chloride is set on fire, it can break down into other dangerous chemicals, including phosgene – used as a chemical weapon in World War I – and hydrogen chloride, which creates ...

A cocktail of deadly chemicals — including highly toxic vinyl chloride and hydrogen chloride — spilled out after 50 cars on a Norfolk Southern Railroad train derailed en route to Pennsylvania.

Hydrogen chloride has a strong, irritating odor and is corrosive to any tissue that comes into contact with it, according to the federal toxic substances registry. Phosgene smells like freshly cut ...