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Canary in a coal mine

Canary in a coal mine

Canaries were taken into coal mines as an early warning system for poisonous gases. They react to lower levels of gases, such as carbon monoxide, than humans.

Make your own canary in a cage with this simple toy

Learn more about mining in and around Chesterfield with our Down T'pit Exhibition or find out about one of the last canaries used at Markham Colliery.

Last updated on 20 April 2020