Research Article

Accidental Release of Chlorine from a Storage Facility and an On-Site Emergency Mock Drill: A Case Study

Table 2

Chlorine exposure thresholds and reported responses in humans.

Exposure level (ppm)Effect

0.2–0.4Threshold of odor perception with considerable variation among subjects
30Immediate chest pain, vomiting, dyspnea, and cough
430Lethal over 30 minutes
1,000Fatal with a few minutes