what causes coal mines

Coal mining - Wikipedia

Coal mining is the process of extracting coal from the ground. ... Black damp: a mixture of carbon dioxide and nitrogen in a mine can cause suffocation, ...

Health effects of coal - SourceWatch

The petition states that coal mines should be held to the Clean Air Act standards in ... Drinking water contaminated with hexavalent chromium from coal may cause cancer.

What Causes Coal Mines - comtechgroup.in

what causes coal mines One of the causes of lung cancer is exposure to coal dust. Exposure to coal dust can cause some coal mine workers to develop pneumoconiosis, ...