Yale study: Fracking causes release of cancer-causing chemicals

‘The chemicals used in fracking are a toxic brew of carcinogens that pollute both water and air, according to a new study conducted by researchers from Yale University, and published in the journal Science of the Total Environment.
Fracking, a popular name for the drilling practice known as hydraulic fracturing, consists of injecting a proprietary blend of chemicals deep underground to fracture the bedrock and allow access to oil and gas inaccessible to conventional drilling techniques. New technologies combined with declining reserves of easier to extract oil have led to a boom in the practice, particularly in North America.
“Previous studies have examined the carcinogenicity of more selective lists of chemicals,” lead author Nicole Deziel said. “To our knowledge, our analysis represents the most expansive review of carcinogenicity of hydraulic fracturing-related chemicals in the published literature.”‘
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