Oil and gas companies pumped millions of gallons of carcinogenic chemicals into U.S. water supply

Millions of gallons of potentially cancer-inducing chemicals have been pumped into the U.S. water supply by leading gas and oil companies, an investigation has revealed.

The chemicals were pumped into wells as part of a process called hydraulic fracturing to access natural gas, which needs large amounts of water and fluids injected underground at high volumes and pressure.
A report quizzed 14 different companies about the chemicals used in the process and found 29 chemicals were known or suspected human carcinogens.
They were either regulated under the Safe Drinking Water Act as risks to human health, or listed as hazardous air pollutants under the Clean Air Act.


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