Hydraulic Fracturing & Health - National Institute of Environmental
https://www.niehs.nih.gov/health/topics/agents/fracking
WebNov 15, 2022 · Hydraulic fracturing, or fracking, is a method used to extract natural gas and oil from deep rock formations known as shale. Using this method, drilling operators force water, sand, and a mix of chemicals into horizontally drilled wells, causing the shale to crack and release natural gas or oil.
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