Chlorine gas detection by smell can become unreliable over time due to what phenomenon?

Chlorine gas detection by smell can become unreliable over time due to what phenomenon?

• A. Olfactory fatigue
• B. Olfactory enhancement
• C. Taste fatigue
• D. Auditory fatigue

Answer: (A)

Olfactory fatigue, also called sensory adaptation, is when the nose’s smell receptors become less responsive after continuous exposure to an odor. With chlorine gas, this means that after you initially detect the smell, your sense of smell can fade, making it harder to notice ongoing leaks. Relying on smell alone is unsafe because the odor can disappear even while chlorine is present, so proper gas detectors and alarms are essential for protection. The other options don’t fit: olfactory enhancement would mean smelling it more, which isn’t how adaptation works; taste fatigue involves taste, not smell; and auditory fatigue involves hearing, not smell.

Olfactory fatigue, also called sensory adaptation, is when the nose’s smell receptors become less responsive after continuous exposure to an odor. With chlorine gas, this means that after you initially detect the smell, your sense of smell can fade, making it harder to notice ongoing leaks. Relying on smell alone is unsafe because the odor can disappear even while chlorine is present, so proper gas detectors and alarms are essential for protection. The other options don’t fit: olfactory enhancement would mean smelling it more, which isn’t how adaptation works; taste fatigue involves taste, not smell; and auditory fatigue involves hearing, not smell.