Navigation Links
Another concern arises over groundwater contamination from fracking accidents
Date:6/25/2014

The oil and gas extraction method known as hydraulic fracturing, or fracking, could potentially contribute more pollutants to groundwater than past research has suggested, according to a new study in ACS' journal Environmental Science & Technology. Scientists are reporting that when spilled or deliberately applied to land, waste fluids from fracking are likely picking up tiny particles in the soil that attract heavy metals and other chemicals with possible health implications for people and animals.

Tammo S. Steenhuis and colleagues note that fracking, which involves injecting huge volumes of fluids underground to release gas and oil, has led to an energy boom in the U.S. But it has also ignited controversy for many reasons. One in particular involves flowback, which refers to fluids that surge back out of the fracked wells during the process. It contains water, lubricants, solvents and other substances from the original fracking fluid or extracted from the shale formation. High-profile spills and in some places, legal application of these liquids to land, have raised alarms. Research has linked fracking to groundwater contamination that could have major health effects. But another factor that no one has really addressed could play a role: colloids. These tiny pieces of minerals, clay and other particles are a concern because they attract heavy metals and other environmental toxins, and have been linked to groundwater contamination. Steenhuis' team set out to take a closer look.

To simulate what would happen to colloids in soil after a fracking spill, the researchers flushed flowback fluids through sand with a known amount of colloids. They found that the fluids dislodged about a third of the colloids, far more than deionized water alone. When they increased the flow rate, the fluids picked up an additional 36 percent. "This indicates that infiltration of flowback fluid could turn soils into an additional source of groundwater contaminants such as heavy metals, radionuclides and microbial pathogens," the scientists conclude. More research with real soils is planned.


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Related biology news :

1. Nanotherapy: Treating deadly brain tumors by delivering big radiation with tiny tools
2. Happy Fathers Day! Another reason why dads and hopeful dads should quit smoking now
3. Giving ancient life another chance to evolve
4. Flightless molecule may prevent cancer from spreading from 1 tissue to another
5. Study proves that 1 extinction leads to another
6. Another muscular dystrophy mystery solved; MU scientists inch closer to a therapy for patients
7. Researchers turn one form of neuron into another in the brain
8. Understanding Earth processes and human impacts, plus another look at Mars
9. Exercise or make dinner? Study finds adults trade one healthy act for another
10. Another scientific proof of the difference in social perception between men and women
11. Neuron claws in the brain enable flies to distinguish 1 scent from another
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/5/2016)... DUBLIN , Feb. 5, 2016 /PRNewswire/ ... the addition of the "Global Facial ... offering. --> http://www.researchandmarkets.com/research/5kvw8m/global_facial ) has ... Facial Recognition Market 2016-2020" report to ... Markets ( http://www.researchandmarkets.com/research/5kvw8m/global_facial ) has announced the ...
(Date:2/3/2016)... , February 4, 2016 --> ... to SEK 1,351.5 M (105.0), up 1,187% compared with fourth quarter of ... amounted to SEK 517.6 M (loss: 30.0). Earnings per share ... activities was SEK 537.4 M (neg: 74.7). , ... , Revenues amounted to SEK 2,900.5 M (233.6), up 1,142% compared with ...
(Date:2/3/2016)... , Feb. 3, 2016 Vigilant Solutions ... Police Department in Missouri solved ... plate reader (LPR) data from Vigilant Solutions. ... case in which the victim was walking out of a convenience store and ... space next to his vehicle, striking his vehicle and ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... DUBLIN , Feb. 10, 2016  Allergan plc ... today announced that Brent Saunders , Allergan,s CEO ... in a fireside chat session at the RBC Capital ... 12:30 p.m. ET at The New York Palace Hotel ... presentation will be webcast live and can be accessed ...
(Date:2/10/2016)... Springfield, MO (PRWEB) , ... February 10, 2016 ... ... company, will attend the International Society of Pharmaceutical Engineering (ISPE) Rocky Mountain Chapter ... of ISPE is expecting to fill more than 100 tables for its annual ...
(Date:2/10/2016)... ... 10, 2016 , ... PatientCrossroads announces that the ... online PatientCrossroads platform, has exceeded both its one-year and overall recruitment goals since ... which seeks to advance understanding of the hereditary risks for certain kinds of ...
(Date:2/10/2016)... ... ... Cenna Bioscience Inc., an emerging biopharmaceutical company focused on the discovery and ... been selected to present at the Cavendish Global Health Impact Forum taking place February ... of the Forum is to help family offices and foundations develop and implement their ...
Breaking Biology Technology: