New Study Links Fracking to Birth Defects in Heavily Drilled Colorado
http://america.aljazeera.com/articles/2014/1/30/new-study-links-frackingtobirthdefectsinheavilydrilledcolorado.html
New study links fracking to birth defects in heavily drilled Colorado
by Renee Lewis January 30, 2014 9:45PM ET
Risks of some birth defects increased as much as 30 percent in mothers who lived near oil and gas wells
Living near hydraulic fracturing or fracking sites may increase the risk of some birth defects by as much as 30 percent, a new study suggests. In the U.S., more than 15 million people now live within a mile of a well.
The use of fracking, a gas-extraction process through which sand, water and chemicals are pumped into the ground to release trapped fuel deposits, has increased significantly in the U.S. over the past decade. Five years ago, the U.S. produced 5 million barrels of oil per day; today, it's 7.4 million, thanks largely to fracking.
Supporters of the industry say it creates jobs and spurs the economy, while critics say its development is largely unregulated and that too little is known about pollution and health risks.
The report by the Colorado School of Public Health, released Jan. 28, gathered evidence from heavily drilled rural Colorado, which has among the highest densities of oil and gas wells in the U.S.
What we found was that the risk of congenital heart defects (CHD) increased with greater density of gas wells with mothers living in the highest-density areas at greatest risk, Lisa McKenzie, a research associate at the Colorado School of Public Health and the lead author of the study, told Al Jazeera.
The study examined links between the mothers residential proximity to natural gas wells and birth defects in a study of more than 124,842 births from 1996 to 2009 in rural Colorado.
The study found that births to mothers in the most exposed (areas with over 125 wells per mile) had a 30 percent greater prevalence of CHDs than births to mothers with no wells in a 10-mile radius of their residence."
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