Navigation Links
Groundwater unaffected by shale gas production in Arkansas
Date:5/15/2013

or fracking, involves pumping water, sand and chemicals deep underground into horizontal gas wells at high pressure to crack open hydrocarbon-rich shale and extract natural gas. Accelerated shale gas drilling and hydrofracking in recent years has fueled concerns about water contamination by methane, fracking fluids and wastewater from the operations.

Previous peer-reviewed studies by Duke scientists found direct evidence of methane contamination in drinking water wells near shale-gas drilling sites in the Marcellus Shale basin of northeastern Pennsylvania, as well as possible connectivity between deep brines and shallow aquifers, but no evidence of contamination from fracking fluids.

"The hydrogeology of Arkansas's Fayetteville Shale basin is very different from Pennsylvania's Marcellus Shale," Vengosh noted. Far from contradicting the earlier studies, the Arkansas study "suggests that variations in local and regional geology play major roles in determining the possible risk of groundwater impacts from shale gas development. As such, they must be taken into consideration before drilling begins."

Human factors -- such as the drilling techniques used and the integrity of the wellbores also likely play a role in preventing, or allowing, gas leakage from drilling sites to shallow aquifers, Vengosh said.

"The take-home message is that regardless of the location, systematic monitoring of geochemical and isotopic tracers is necessary for assessing possible groundwater contamination," he said. "Our findings in Arkansas are important, but we are still only beginning to evaluate and understand the environmental risks of shale gas development. Much more research is needed."


'/>"/>

Contact: Tim Lucas
tdlucas@duke.edu
919-613-8084
Duke University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Lawrence Livermore helps find link to arsenic-contaminated groundwater
2. Report: Cleanup of some contaminated groundwater sites unlikely for decades
3. EARTH: Famous fossils and spectacular scenery at British Columbias Burgess Shale
4. Mechanism for Burgess Shale-type preservation
5. Researchers pinpoint how trees play role in smog production
6. Fertility needs in high-yielding corn production
7. Surprising findings on hydrogen production in green algae
8. Breakthrough could lead to cheaper, more sustainable chemical production
9. IRB Barcelona researchers discover mechanism that regulates steroid hormone production in Drosophila
10. Fat worms inch scientists toward better biofuel production
11. Althea Technologies & Profectus BioSciences Sign Manufacturing Agreement For Plasmid DNA Production
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... DURHAM, N.C. -- Scientists have identified the developmental on-off ... microbes that produce more than two-thirds of the world,s ... would be to see whether it is possible to ... efficient. , The study, appearing August 28 in ... a small molecule called cyclic-di-GMP and a larger protein ...
(Date:8/28/2014)... to Research Careers) Program has announced the travel ... Medicine,s Conference on Integrative Physiology of Exercise from ... awards are meant to promote the entry of ... into the mainstream of the basic science community ... at the American College of Sports Medicine,s Conference ...
(Date:8/28/2014)... the most commonly diagnosed learning disability in the ... occurs when the regions of the brain that ... use of non-invasive functional neuroimaging tools has helped ... However, most prior work has focused on only ... gap in our understanding of how multiple brain ...
Breaking Biology News(10 mins):Small molecule acts as on-off switch for nature's antibiotic factory 2Small molecule acts as on-off switch for nature's antibiotic factory 3Dyslexic readers have disrupted network connections in the brain 2
... video article in JoVE , the Journal ... process synthetic spider silk from bacteria. The procedure presented ... process by standardizing a key step known as "post-spin." ... mechanical actuator to increase fiber strength. These mechanical improvements ...
... electric cars, from the Tesla Model S to the Nissan ... that accounts for more than half of the vehicle,s total ... can theoretically store five times more energy at a much ... After a few dozen cycles of charging and discharging, the ...
... The word rainforest usually conjures up visions of brightly coloured ... of leaves, vines and flowers. But rainforests are also ... region where temperatures are far cooler. And while there are ... every bit as endangered as their southern cousins, and highly ...
Cached Biology News:The future of biomaterial manufacturing: Spider silk production from bacteria 2Stanford-SLAC team uses X-ray imaging to observe running batteries in action 2Stanford-SLAC team uses X-ray imaging to observe running batteries in action 3Stanford-SLAC team uses X-ray imaging to observe running batteries in action 4Hidden secrets in the world's most northerly rainforests 2Hidden secrets in the world's most northerly rainforests 3Hidden secrets in the world's most northerly rainforests 4
(Date:8/29/2014)... Due to a misstatement posted by the ... Cell Technology Center, LLC ( ASCTC ) was reported as ... that might benefit ALS patients. Because of ASCTC's exclusive ... technologies and therapeutic applications, FRC listed ASCTC as one of ... who wish not to support research that requires the death ...
(Date:8/28/2014)... City, CA (PRWEB) August 28, 2014 ... sanitation products for the food processing industry, is asking ... a side-by side comparison of the E2 soap they’re ... E2 Sanitizing Foam Soap . Hand hygiene is ... in the food processing environment. Six key criteria are ...
(Date:8/28/2014)... converters are important devices in spintronics, an electronic ... of electrons but also on their spin and ... of electric into magnetic signals and vice versa. ... from the Institute of Physics at Johannes Gutenberg ... UK, Prague, and Japan, has for the first ...
(Date:8/28/2014)... 2014   SunTrust Robinson Humphrey (STRH) ... to its equity research team in biotechnology and ... in equity research demonstrates our commitment to providing ... enhance their investment decision making," said Biff ... continue to make significant investments in differentiated content ...
Breaking Biology Technology:The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 3Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2A new, tunable device for spintronics 2A new, tunable device for spintronics 3SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 3
... Call on U.S. Senate to Take Similar Action, ... of America (ATA), the industry trade organization for ... Appropriations,Subcommittee for taking action that if adopted by ... Homeland Security (DHS) US-VISIT,Exit program., The House-approved ...
... ... FUNCTIONAL FOOD market-- LAVAL, QC, Sept. 25 /PRNewswire-FirstCall/ - ... it entered a worldwide alliance with Marine Life Sciences who ... distribution,of dietary supplements and functional food products in the global,nutraceutical ...
... for the year increase approximately 13.5% vs. prior year, ... Board: CONX), a worldwide developer and marketer of,diagnostic test ... reported,financial results. The report disclosed that the company,s sales ... June 30, 2008.,Some of the results highlighted by the ...
Cached Biology Technology:Neptune Technologies and Marine Life Sciences enter worldwide distribution alliance with Weider Global Nutrition 2Neptune Technologies and Marine Life Sciences enter worldwide distribution alliance with Weider Global Nutrition 3Neptune Technologies and Marine Life Sciences enter worldwide distribution alliance with Weider Global Nutrition 4Corgenix Reports Fiscal 2008 Financial Results 2Corgenix Reports Fiscal 2008 Financial Results 3Corgenix Reports Fiscal 2008 Financial Results 4
Natural Mouse Laminin is purified from the Engelbreth-Holm-Swarm (EHS) sarcoma and is provided in Tris-buffered saline....
EPH electrode, cathode, 1. Category: Electrophoresis Systems & Standards & Reagents, IEF & SDS-PAGE & 2-D Electrophoresis, Multiphor II Kits & Components and Accessories....
... paraffin tissue array is designed for ... interest in extensive panels of different ... heart, kidney, liver, lung, muscle, spleen ... positively charged glass slide. Each ...
Rat Normal Multiple Tissue Array 1 slide...
Biology Products: