2,8 Examples of agents reported to cause RADS
include chlorine gas, hydrochloric acid, anhydrous ammonia
hydrogen sulfide, fumigating fog, heated acids, and smoke by
inhalation. In 1984, a toxic cloud of methyl isocyanate gas released
from a chemical plant in Bhopal, India, killed thousands
of people, and caused thousands more to develop persistent
respiratory disease, some with reversible airway obstruction.