You are loading epichlorohydrin onto your barge. According to the Chemical Data Guide, you could expect to detect a leak by smell if the concentration in air was at least __________.

Correct Answer: Option B — 10 - 25 ppm

The USCG Chemical Data Guide indicates that the human olfactory threshold for detecting epichlorohydrin vapor concentrations by smell typically ranges between 10 and 25 ppm.