symptoms of acute respiratory irritation such as dryness of the mouth , nose , or throat , dry cough , nose bleeds , sore throat , productive cough , shortness of breath , and chest tightness were related to exposures of 4.0 mg/m3 or more , and were infrequent at exposures of 1.1 mg/m3 .
C0031354
throat
C0031350
sore throat