Navigation Links
Pittsburgh's leaky faucet: How aging sewers are impacting urban watersheds
Date:3/11/2013

PITTSBURGHAging sewer systems are spilling a considerable amount of nitrogen into urban watersheds, diminishing both the quality of water and ecosystems' habitats. However, many studies documenting the impacts of nitrogen on urban environs have not properly estimated the contribution of leaky sewer systemsuntil now.

Aging sewer systems are spilling a considerable amount of nitrogen into urban watersheds, diminishing both the quality of water and the ecosystems' habitats.

Using water samples from the Pittsburgh-based Nine Mile Run watershed, a Pitt research team reveals in the current issue of Environmental Science & Technology that an estimated 10 to 20 tons of reactive nitrogen from sewage flows into Pittsburgh's Monongahela River every year from the six-square-mile watershed. That means that up to 12 percent of all sewage produced by residents living in the Nine Mile Run watershed area leaks from the sewers and is transferred to the stream, negatively affecting stream water quality.

"This is a very complicated problem," said Marion Divers, principal author of the paper and a Pitt PhD candidate who conducted the study under the supervision of Pitt assistant professors of geology and planetary science Emily Elliott and Daniel Bain, who were coauthors of the paper. "You build a sewer system once, put it underground, and unless there's a catastrophic failure, you may not have a reason to dig it up and make sure it's not leaking. Now sewers across the United States and in Pittsburgh are aging, and as these systems grow older, more sewage is leaking into groundwater and streams."

While living organisms need nitrogen to build essential proteins, leaky sewer systems, the burning of fossil fuels, and overuse of chemical fertilizers have contributed to an overabundance of nitrogen in U.S. rivers and streams. Too much nitrogen can deplete the water of oxygen, with results as threatening as those seen in the Gulf of Mexico Dead Zone,
'/>"/>

Contact: B. Rose Huber
rhuber@pitt.edu
412-624-4356
University of Pittsburgh
Source:Eurekalert

Page: 1 2

Related biology news :

1. Texas A&M research contributes to improved ultrasound imaging
2. P&G Beauty & Grooming to present advancements in skin aging & stress sweat at AAD Meeting
3. Invention opens the way to packaging that monitors food freshness
4. CellTrust SecureSMS PULSE Integrated to Santech Health for Secure Text Messaging of Biometrics and PHI will be Demonstrated at HIMSS 2013
5. Genome-wide imaging study identifies new gene associated with Alzheimers plaques
6. In the blink of an eye: X-ray imaging on the attosecond timescale
7. Elsevier announces the launch of a new journal: Journal of Forensic Radiology and Imaging
8. UT Arlington bioengineer to use hybrid imaging system to see deep tissue
9. Improved X-ray microscopic imaging
10. New modeling approach transforms imaging technologies
11. Imaging biomarker predicts response to rapid antidepressant
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/14/2014)... prostate cancer tumors scavenge and hoard copper that is ... may be a fatal weakness. , Researchers at ... cancer cells by delivering a trove of copper along ... brimming with the mineral, leaving non-cancer cells healthy. , ... available for other uses, could soon be tested in ...
(Date:10/14/2014)... have sequenced the house fly genome for the first ... from an insect that thrives in pathogen-rich dung piles ... in the journal Genome Biology , will increase ... how flies quickly adapt to resist insecticides, which could ... (Musca domestica) carry and transmit more than 100 human ...
(Date:10/14/2014)... fish oil supplements, rich in omega-3 fatty acids, do not ... which the heart can beat as fast as 150 beats ... the Montreal Heart Institute were published in the Journal ... , For the trial, 337 patients with atrial fibrillation not ... of fish oil a day or to placebo for up ...
Breaking Biology News(10 mins):Prostate cancer's penchant for copper may be a fatal flaw 2House fly genome reveals expanded immune system 2
... In the current issue of Science , researchers at ... sheds light on how easy it can be for diseases ... first time how the virus called "Lambda" evolved to find ... took four mutations to accomplish. This virus infects bacteria, in ...
... In a study published in the journal Geology , ... Marine and Atmospheric Science suggest that the large changes in ... the major climatic event more than 500 million years ago, ... "Our study suggests that the geochemical record documented in ...
... the fact that as they have more children, their weight ... study using a mouse model that mimics the human effects ... mouse moms who gave birth four times accrued significantly more ... similar age. The study also found significantly more inflammation in ...
Cached Biology News:MSU researchers show how new viruses evolve, and in some cases, become deadly 2What really happened prior to 'Snowball Earth'? 2Multiple births lead to weight gain and other problems for mouse moms and male offspring 2Multiple births lead to weight gain and other problems for mouse moms and male offspring 3
(Date:10/18/2014)... The Asia-Pacific Liquid Crystal on Silicon (LCoS) ... in Asia-Pacific with analysis and forecast of revenue. This ... is expected to reach $380.0 million by 2018, at ... Browse through the TOC of the Asia-Pacific LCoS display ... analysis provided. This also provides a glimpse of the ...
(Date:10/18/2014)... According to a new market research report ... Global Trends & Forecasts up till 2017”, hydraulic fracturing ... This value is expected to increase from $40 billion ... CAGR during the same period. North America is expected ... terms of hydraulic horse power supplied by the year ...
(Date:10/17/2014)... received a $451,781 Air Force Office of Scientific Research ... and nano-scale level that will provide clues for predicting ... and Aerospace Engineering, said the new technology and process ... of an aircraft,s wing., "We,ll be able to determine ... at it on this scale," Huang said. "Certain patterns ...
(Date:10/17/2014)... For the seventh consecutive year, ... in today’s print issue of Science magazine. , ... Survey polled employees in the biotechnology, pharmaceutical and ... Rankings were determined based on responses from ... companies on 23 characteristics, including financial strength, leadership ...
Breaking Biology Technology:The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 2Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 4UT Arlington project to detect possible damages in aircraft parts early in process 2DuPont Named Top Employer by Science Magazine 2DuPont Named Top Employer by Science Magazine 3
... of WIRED,s sustainable "green" home showcase , ... Chicago, IL (PRWEB) March ... made from customers, DNA, has partnered with WIRED and the Museum of ... at the Smart Home: Green + Wired exhibit in Chicago. The exhibit ...
... Ga., March 23 ArunA Biomedical, Inc., ... of Edina, MN, giving Neuromics the right to ... Neural Cells and Neural Culture Medium to support ... )ArunA has an exclusive worldwide license to develop ...
... BEIJING, March 23 BioDuro and AstraZeneca announced ... to optimize discovery research for Respiratory and Inflammation ... the areas of discovery chemistry, discovery biology, ADMET*, ... internal drug discovery and shorten development timelines. "After ...
Cached Biology Technology:DNA 11 Unveils Modern-Day Family Portraits at The Museum of Science and Industry's Smart Home: Green + WIRED Exhibit 2DNA 11 Unveils Modern-Day Family Portraits at The Museum of Science and Industry's Smart Home: Green + WIRED Exhibit 3ArunA Biomedical, Inc. Announces Alliance with Neuromics for Distribution of Normal Human Neural Cells 2BioDuro and AstraZeneca Expand Collaboration to Optimize Discovery Research for Respiratory and Inflammation Indications 2
Glycerokinase; from Bacillus stearothermophilus...
A compact, high-speed single tube reader unit designed for benchtop 2D barcode reading. The unit can be used with all of ABgene's 2D barcoded tubes, including the 2ml CryoCode tube....
... Ascent FL is equipped ... luminometric measurement technologies that ... of advanced features of ... Ascent. Fluoroskan Ascent FL ...
... hydrolytic enzyme that catalyzes the conversion,of ... maltose, maltotriose and,dextrins. The level of ... human,body are of clinical importance,1-3 while ... for industry.4, The EnzChek Amylase Assay ...
Biology Products: