What is the typical odor associated with pure blister agents?

The typical odor associated with pure blister agents is commonly described as similar to garlic or horseradish. This distinctive smell can sometimes serve as an initial indicator of a chemical agent's presence in the environment, which is critical for first responders and military personnel. Blister agents, like mustard gas and lewisite, are designed to cause significant damage to the skin and respiratory system, making recognizing the odor important for safety and emergency response purposes.

Understanding the characteristic odor helps individuals trained in chemical agent recognition assess potential threats quickly and take the appropriate protective measures. The other options, while they may be associated with different substances or environmental factors, do not accurately represent the characteristic smell of blister agents, reinforcing the importance of correct identification.