This week, more evidence came in that hydraulic fracturing (or fracking) poses potentially serious risks to drinking water quality and human health.
A team of researchers from the University of Missouri found evidence of hormone-disrupting activity in water located near fracking sites – including samples taken from the Colorado River near a dense drilling region of western Colorado.
The Colorado River is a source of drinking water for more than 30 million people.
The peer-reviewed study was published this week in the journal Endocrinology.
Fracking is the controversial process of blasting water mixed with sand and chemicals deep underground at high pressure so as to fracture rock and release the oil and gas it holds. It has made previously inaccessible fossil fuel reserves economical to tap, and drilling operations have spread rapidly across the country.
The University of Missouri team found that 11 chemicals commonly used in the fracking process are “endocrine disrupters” – compounds that can affect the human hormonal system and have been linked to cancer, birth defects, and infertility.
“More than 700 chemicals are used in the fracking process, and many of them disturb hormone function,” said Dr. Susan Nagel, associate professor of obstetrics, gynecology, and women’s health at the University of Missouri School of Medicine and a co-author of the study, in a news release.
“With fracking on the rise, populations may face greater health risks from increased endocrine-disrupting chemical exposure.”