The odor of moth balls likely indicates exposure to which substance?

The odor of moth balls is primarily associated with naphthalene, a substance commonly used in these products to repel moths and insects. Naphthalene is a polycyclic aromatic hydrocarbon that has a distinctive, strong smell reminiscent of moth balls. Upon exposure or inhalation, naphthalene can pose health risks, particularly in high concentrations, causing issues such as respiratory irritation and potential hemolytic anemia.

Phosgene is a toxic gas that has a different chemical structure and typically does not have a moth ball-like odor. Cyanide can be deadly and has a smell resembling bitter almonds, which is not associated with moth balls. Acetone, on the other hand, is a solvent with a sweet, pungent smell, distinctly different from that of naphthalene.

In this context, identifying naphthalene as the substance linked to the smell of moth balls highlights the importance of recognizing various odors and their potential health implications in emergency situations. This knowledge is crucial for EMTs when assessing possible exposures.