Canaries - Mice has also been used for gas detection •...

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Canaries Their use in Mines
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Practice begun in 1911 Canaries have been ingrained in the culture of miners. There are reports of miners whistling to the birds and coaxing them as they worked The canaries were treated as pets.
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The canary is particularly sensitive to toxic gases such as carbon monoxide which is colorless, odorless and tasteless. When the canary stopped singing, it signaled a problem for the miners
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Any sign of distress for the canary was a signal to the miners. The canary did not have to die. Usually two canaries were kept together as they were more prone to sing
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Unformatted text preview: Mice has also been used for gas detection. • But mice were not as sensitive to small amounts of toxic gases. Canaries are no longer used in mines • The last 200 canaries used in mines were phased out of use in 1986, in Britian Canaries have been replaced with air monitors • constant monitoring • Alarms are audio, visual and/or vibratory What do Air Monitors Evaluate? • Oxygen content in the air • Quantity of Methane • Quantity of Hydrogen Sulfide • Quantity of Carbon Monoxide • other gases Monitors can be used as area monitors or as personal monitors...
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Canaries - Mice has also been used for gas detection •...

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