The latest environmental threat: sand mining

The controversial practice of fracking — which involves pumping a mix of sand, water and chemicals into a well to fracture the rock and release natural gas — has attracted widespread criticism for its potential to contaminate drinking water and cause minor earthquakes.

Now a new environmental threat is emerging from the process: sand mining.

Reuters reports that environmentalists and concerned residents are raising the alarm about sand mining being a threat to air and water quality because heavy machinery and a lot of water are needed to remove the top layer of overburden above a sandstone deposit:

If inhaled, crystalline silica, a building block in so-called frac sand, is a potential carcinogen and can cause lung and other diseases, according to the U.S. Occupational Safety and Health Administration.

The mining process can also cause erosion and run-off that can fill nearby rivers with sediment, reducing oxygen levels for fish and plants.

 

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