1984 accident in Bhopal, INDIA at a PESTICIDES facility, resulting when WATER entered a storage tank containing ISOCYANATES. The following accidental chemical release and uncontrolled reaction resulted in several thousand deaths.

ANTHRAX outbreak that occurred in 1979 and was associated with a research facility in Sverdlovsk, in the Ural mountain region of central RUSSIA. Most victims worked or lived in a narrow zone extending from the facility. The zone of anthrax-caused livestock mortality paralleled the northerly wind that prevailed shortly before the outbreak. It was concluded that an escape of ANTHRAX caused outbreak.

1976 accidental release of DIOXINS from a manufacturing facility in Seveso, ITALY following an equipment failure.

Organic compounds that contain the -NCO radical.

Organic salts of cyanic acid containing the -OCN radical.

'Gas poisoning' is a condition characterized by the exposure to harmful gases, such as carbon monoxide or hydrogen sulfide, which can lead to symptoms like headache, dizziness, nausea, vomiting, and in severe cases, loss of consciousness or death.