Canary in the Coal Mine: Professions Prone to Carbon Monoxide Exposure
Canary in the Coal Mine: Professions Prone to Carbon Monoxide Exposure
In the early 1900s, miners carried canary birds into the mines with them as poison testers. At the time, no available instruments could detect carbon monoxide (CO) – a lethal, tasteless, odorless, invisible, flammable gas. However, if the canary stopped singing or perished from CO exposure, miners knew to evacuate. Canaries have since become ingrained […]