REACTIONS TO PARTICLES IN SMOKE

Smoke is a mixture of particles and gaseous chemicals of varying physi cal and chemical properties. When inhaled these produce the characteri stic features of smoke-inhalational injury. Although heat is produced in fires it is the chemical agents which cause the damage to the airwa ys and the lungs. Mortality and morbidity are closely related to pulmo nary injury and thus to the particulate and chemical nature of smoke. Moreover, there seems to be a potentiating effect, in that the particl es worsen the toxicity of the chemicals present.