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:4/20/2014)... with Down syndrome have a heightened risk of developing ... able to explain why. Now, a team of ... the two conditions. , In a study posted online ... researchers track the genetic chain of events that links ... havoc that occurs in ALL. Their findings are ...
(Date:4/18/2014)... like X-ray crystallography and nuclear magnetic resonance imaging (NMR) ... molecules, but such efforts have long been hampered by ... specific molecule and often in ordered and crystalized form ... to peer into the structure of most molecules. , ... a thing of the past. , A team ...
(Date:4/18/2014)... Durham, NC Ancient DNA adds a twist to the ... study to be published April 21 in the journal ... DNA from the bones of chickens that lived 200-2300 years ... years ago domestic chickens may have looked far different from ... some of the traits we associate with modern domestic chickens ...
Breaking Biology News(10 mins):Dana-Farber researchers uncover link between Down syndrome and leukemia 2Dana-Farber researchers uncover link between Down syndrome and leukemia 3MRI, on a molecular scale 2MRI, on a molecular scale 3Ancient DNA offers clues to how barnyard chickens came to be 2
... , , , , ... Biometrics, Inc. (OTC Bulletin Board: PBME), a leading provider of ... entry into a Loan and Security Agreement with Terry M. Giles, ... In connection with, and as required by the Loan, on ...
... , , , , ... Reportlinker.com announces that a new market research report is available in ... Signature Verification Market , , ... worldwide markets for Dynamic Signature Verification in US$ Thousands. The market ...
... , WALL, N.J., Sept. 14 / PRNewswire-FirstCall / ... a leader in finger-based biometric identification and wireless public safety solutions, ... Advisor and Consultant to the company. Tom will play a major ... the government and commercial markets. , , (Logo: ...
Cached Biology News:Pacific Biometrics Completes $4 Million Debt Financing 2Pacific Biometrics Completes $4 Million Debt Financing 3Pacific Biometrics Completes $4 Million Debt Financing 4Pacific Biometrics Completes $4 Million Debt Financing 5Reportlinker Adds World Dynamic Signature Verification Market Report 2Reportlinker Adds World Dynamic Signature Verification Market Report 3Reportlinker Adds World Dynamic Signature Verification Market Report 4Reportlinker Adds World Dynamic Signature Verification Market Report 5Reportlinker Adds World Dynamic Signature Verification Market Report 6Reportlinker Adds World Dynamic Signature Verification Market Report 7Reportlinker Adds World Dynamic Signature Verification Market Report 8Reportlinker Adds World Dynamic Signature Verification Market Report 9BIO-key Retains Former Senior FBI Official as Strategic Advisor and Consultant 2BIO-key Retains Former Senior FBI Official as Strategic Advisor and Consultant 3BIO-key Retains Former Senior FBI Official as Strategic Advisor and Consultant 4
(Date:1/15/2014)... interface is the device," Nobel laureate Herbert Kroemer ... be found at the junctures where layers of ... nanotechnology, the interfaces between layers of metal oxides ... high-tech favorites as spintronics, high-temperature superconductors, ferroelectrics and ...
(Date:1/15/2014)... 2014 Look inside the new Preferred ... the lab, from fluid handling to instruments to supplies. ... when you order. , Preferred Solutions features a ... the L/S® model for precise flow control and dispensing ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 This webinar ... nonclinical and clinical safety assessment in biosimilars. , Regulatory ... for biosimilar drug development, however the complex nature of ... quality, safety and efficacy extremely challenging. Based on the ...
(Date:1/15/2014)... The Microcompetition with Foreign DNA theory explains how latent ... viruses is the Epstein Barr Virus (EBV), and one of ... a chronic inflammatory disease that destroys the body’s joints. As ... have high concentrations of EBV DNA in their bodies (1). ...
Breaking Biology Technology:A deeper look at interfaces 2Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3
... Dallas , and Boston , getting a first look ... the search for DEMO 2007's demonstrating class is in full swing.) ... quite different from the usual fare of Silicon Valley . ... consumer software, Austin has strong leadership in IT systems management. In ...
... the American population hit the 300 million mark earlier this week. ... is scheduled to hit the 300 million mark sometime Tuesday, and ... baby before he or she is out of the womb. , ... many environmentalists still buy into the doomsday theories of Thomas Malthus, ...
... favorite topic of mine over the years is Japan. In ... pharmaceutical industry and biotech markets (3/10/03, 8/18/03, 3/28/05). I had ... Bio-Jan 2006 Conference in September after a three-year hiatus. ... the 30th anniversary celebration of the Osaka-Chicago sister city relationship, ...
Cached Biology Technology:What makes Silicon Valley so different? 2What makes Silicon Valley so different? 3What makes Silicon Valley so different? 4300 millionth American no cause for eco-alarm 2300 millionth American no cause for eco-alarm 3300 millionth American no cause for eco-alarm 4Japan on the rebound: Implications for Midwest 2Japan on the rebound: Implications for Midwest 3Japan on the rebound: Implications for Midwest 4Japan on the rebound: Implications for Midwest 5Japan on the rebound: Implications for Midwest 6Japan on the rebound: Implications for Midwest 7Japan on the rebound: Implications for Midwest 8Japan on the rebound: Implications for Midwest 9
... Covance's BCIP/NBT Chromogen system ... Tetrazolium] chromogen in a single ... reacts in the presence of ... purple staining with minimal background ...
... The Infinite 200 series of microplate readers ... absorbance detection in an affordable, easy-to-use platform ... applications. The unique modular design and adaptability ... with a choice of a monochromator (M200) ...
Mouse monoclonal antibody raised against a partial recombinant KRT4. NCBI Entrez Gene ID = KRT4...
Mouse monoclonal antibody raised against a partial recombinant MYO7A. NCBI Entrez Gene ID = MYO7A...
Biology Products: