Risk Analysis of Exposure to High Concentrations of Cold Smoke.

摘要

An experimental risk model for cold smoke, a dense white smoke produced by the reaction of titanium tetrachloride and aqua ammonia aerosols,was used to predict the effects on personnel exposed to the material. The conclusions of the study include:under no conditions of operation of the smoke generator model does NH sub 3contribute to severe irritation (which might require medical attention and/or hospitalization) or fatal injury;in a malfunctioning machine from which only TiCl sub 4is dispersed,marked or severe irritation are the major effects predicted regardless of the time of exposure;the occurrence of fatal injury becomes significant for the three time periods studied (2, 10,and 30minutes) only after 10minutes of exposure, i.e.,no fatalities are predicted for the shorter exposure times;and the conclusions are valid for a properly functioning machine. In addition,there may be significant cases of noticeable irritation due to the presence of NH sub 3 . (ERA citation 04:017189)