What sensory descriptor is associated with Hydrogen Sulphide (H2S) in this context?

• A. Garlic Odor
• B. C-Rotten Eggs-Sweet Taste
• C. Sweet Taste
• D. No Odor

Answer: (B)

Hydrogen sulfide is classically recognized by its sulfurous odor, often described as rotten eggs. In safety contexts, that smell is the cue people look for, especially at low exposure levels. But a key point to remember is that at higher concentrations the smell can disappear due to olfactory fatigue, so you can’t rely on odor alone for detection. The idea that this gas can be associated with a rotten-egg smell, sometimes noted alongside a sweet taste in safety references, is why the descriptor combining rotten eggs with a sweet taste is the best fit for this context. The other options don’t match the common sensory cues used for H2S in mining safety.