A quart bottle of this material could fill a household in two seconds." Dorko said the leak was caused by an overflow from a tank. The material, he said, evaporates easily, creating a toxic cloud.

After nearly two months since a fire erupted at a BioLab chemical plant near Atlanta that produced a toxic chemical cloud, federal investigators ... "BioLab has a strong track record of working ...

Toxic gas which on Thursday leaked from tanks ... causing a chemical reaction that sent a large white cloud into the sky. Guaruja Mayor Maria de Antonieta de Brito asked people to stay home ...