Navigation Links
Notre Dame researcher is studying role small dams play in pollution control
Date:3/28/2013

Sometimes, little things can add up to a lot.

In short, that's the message of a research study on small dams, streams and pollution by Steve Powers, a postdoctoral researcher at the University of Notre Dame's Environmental Change Initiative (ECI).

"Small dams, reservoirs and ponds trap water pollution, which provides an important benefit to water resources," Powers said. "This is especially relevant in agricultural lands of the Midwest U.S., where there are lots of small, but aging dams."

Although small individually, the sum total of the small reservoirs and ponds have a global surface area comparable to that of all large reservoirs added together.

Powers and his fellow researchers showed in detail how a small aging dam, which was more than 100 years old and located in agricultural Wisconsin, trapped water pollutants associated with fertilizer and manure runoff. They also showed an increase in downstream transport of nutrient pollution after the dam was removed, which occurred because of concerns about the dam's safety.

"Many small dams are threatened by long-term structural decline and are also filling with sediment," Powers said. "If we don't better incorporate how small dams affect the movement of water and wastes through the environment, their benefit to downstream water quality could be lost. Meanwhile, legacy sediment and pollution currently trapped behind dams could release as dams lose their water storage capacity, fall apart, or are removed deliberately."

Powers notes that there is a crucial need to gain a better understanding of what small dams mean for our water quality before they crumble and disappear.

"I am continuing to work on the subject at a broader regional scale by looking at hundreds of stream and river monitoring stations throughout the Midwestern U.S. to detect signals of dams," he said. "One current goal is to try and figure out which regions are most vulnerable to water quality changes caused by accu
'/>"/>

Contact: Steve Powers
powers_s@nd.edu
574-631-9322
University of Notre Dame
Source:Eurekalert

Page: 1 2

Related biology news :

1. Notre Dame researchers are using new technologies to combat invasive species
2. Notre Dame research may have important implications for combating diabetes
3. Cargill expands support of Notre Dame Haiti Program
4. Notre Dame research reveals migrating Great Lakes salmon carry contaminants upstream
5. Notre Dame research could improve sustainability and cost effectiveness of wastewater treatment
6. Notre Dame research could provide new insights into tuberculosis and other diseases
7. Notre Dame researcher is shedding light on how jaws evolve
8. Notre Dame establishes professorships in adult stem cell research
9. Notre Dame researchers using novel method to combat malaria drug resistance
10. New paper by Notre Dame researchers describes method for cleaning up nuclear waste
11. University of Montreal researchers discover how drug prevents aging and cancer progression
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/22/2014)... interim director of the University of Montana,s Wildlife Biology Program, ... Proceedings of the National Academy of Sciences on how ... ... Survey, the University of Washington, the Cary Institute of Ecosystem ... Northern Research Station examined 664 water samples collected every 10 ...
(Date:4/22/2014)... 22, 2014) Biotechnology scientists must be aware of ... and licensing guidelines, according to a new paper from ... in the current issue of the journal Regenerative ... 2013 U.S. Supreme Court ruling in the case Association ... occurring genes are unpatentable. The court case and rulings ...
(Date:4/22/2014)... London PETA International Science Consortium Ltd.,s nanotechnology expert ... strategy for nanomaterial hazard assessment" at the 7th ... 2014, in Antalya, Turkey. , Dr. Monita Sharma ... from the US National Academy of Sciences, " Toxicity ... Strategy ," which recommends use of non-animal methods involving ...
Breaking Biology News(10 mins):New research focuses on streamwater chemistry, landscape variation 2New patenting guidelines are needed for biotechnology 2New patenting guidelines are needed for biotechnology 3
... hit Rhode Island's Narragansett Bay during the summer of ... literally suffocates sea life. While some evidence of this ... Brown University ecologists went underwater and discovered a massive ... reefs located in the central bay, researchers found one ...
... environmental problem, especially on the Indian subcontinent. Researchers at ... genetic techniques to create "arsenic-eating" plants that could be ... however. The arsenic sequestered from soil remained largely in ... harvest for safe disposal. Now, the research team, led ...
... and breast cancers are leading causes of cancer death ... In a new scientific study, researchers present astonishing new ... the capacity to contribute to the process of early ... be published in the March 2006 issue of the ...
Cached Biology News:'Dead zone' summer killed billions of ocean state mussels 2Researchers discover way to transport environmental arsenic to plant leaves in new clean-up strategy 2Can dogs smell cancer? 2
(Date:1/14/2014)... Communications, a leading provider of strategic communications services to corporations and ... the United States and Europe ... JD, is returning to the firm,s Washington, D.C. ... more than two years of service as Associate Commissioner for the ...
(Date:1/14/2014)... BETHESDA, Md. , Jan. 14, 2014  Organovo ... institutes from the National Institutes of Health (NIH) to ... more effective treatments to patients on a faster timeline. ... Translational Sciences (NCATS) and the National Eye Institute (NEI) ...
(Date:1/14/2014)... Rockville, MD (PRWEB) January 14, 2014 ... dedicated to developing innovative information technology solutions for ... other health care stakeholders, announced today the signing ... the US Food and Drug Administration (FDA). ...
(Date:1/14/2014)... During the 1600’s through the 1800’s doctors contributed unknowingly ... this time period, doctors did not know that they needed ... death of vulnerable patients. In the same way, medical interns ... unwittingly transmitting herpes viruses to their patients. The CBCD explains. ...
Breaking Biology Technology:Former FDA Associate Commissioner Returns To 3D Communications 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 3
... hundreds of FDA inspectors; now it trains thousands of ... global team of FDA compliance experts, EduQuest is presenting ... training course for quality managers and regulatory specialists December ... (near I-95, Amtrak rail lines, and the Philadelphia airport). ...
... Inc. (OTC Bulletin Board: WDST ) a ... therapies to restore the health of damaged tissues and ... Randall McCoy and Chief Financial Officer, John Weber will ... 2010TIME: , 7:00 PM ESTLINK: , www.retailinvestorconferences.com ...
... ... ... ... by longUrl, so we need to grab the first one. for (var r in data.results) { first_result = data.results[r]; ...
Cached Biology Technology:Former FDA Inspectors Train Medical Device, Pharmaceutical Companies How to Comply with Latest FDA Expectations for Validation and Part 11 2Regenicin to Present Live at RetailInvestorConferences.com on November 4th 2Hikma Expands its Global Injectables Business - Live Webcast 2Hikma Expands its Global Injectables Business - Live Webcast 3Hikma Expands its Global Injectables Business - Live Webcast 4Hikma Expands its Global Injectables Business - Live Webcast 5Hikma Expands its Global Injectables Business - Live Webcast 6Hikma Expands its Global Injectables Business - Live Webcast 7
... The Varian Cary 50 ... reduces your cost per analysis ... throughput of the award-winning Cary ... analyze up to 384 samples ...
IMAGEQUANT 300 WKSTN, 1 EA. Category: ImageQuant CCD Imagers....
PAb to Hu-IFN-Alpha/Beta R2 [(IFNAR2) CD118], Rabbit Serum, neutralizing Binds to but does not neutralize human interferon alpha/beta receptor...
IMAGEQUANT 400 IQTL, 1 EA. Category: ImageQuant CCD Imagers....
Biology Products: