HOME >> BIOLOGY >> NEWS
Rivers May Be Emitting Substance Involved In Ozone Destruction

Federal Study Cites High Emissions of Nitrous Oxide

Rivers may be emitting significant amounts of nitrous oxide as a result of effluents from wastewater treatment plants and agricultural fields, according to a study by the U.S. Geological Survey. In the atmosphere, nitrous oxide (N2O) acts as a catalyst in ozone depletion. The government study shows N2O emissions along the South Platte River in Colorado and Nebraska, where the measurements were taken, are comparable to some of the highest known emission rates in the world.

The study is reported in the Nov. 14 web edition of Environmental Science & Technology, a peer-reviewed scientific journal published by the American Chemical Society, the world's largest scientific society. The study also will appear in the Jan. 1 print edition of the journal.

The total annual N2O emissions from the South Platte River are "similar to the estimated annual N2O emissions from all primary municipal wastewater treatment processes in the United States," according to the article. "If this one river system is similar to others, then nitrous oxide emissions from rivers could be a major human-made source of N2O to the atmosphere," say USGS hydrologists Peter McMahon, Ph.D., and Kevin Dennehy, who conducted the one-year study. However, the researchers point out that measurements from other rivers are needed before drawing any final conclusions.

Few published accounts exist of nitrous oxide emissions from an inland river, according to McMahon and Dennehy. Most N2O studies have focused on wastewater treatment plants, agricultural fields, forests and lakes, they say.

As with many rivers in the U.S., the South Platte receives wastewater effluent from municipalities and groundwater return flows from irrigated fields. The measurements were taken along a 450-mile stretch of the river from North Platte, Neb., to just above Denver, Colo.


'"/>

Contact: Nancy Blount
n_blount@acs.org
202-872-4440
American Chemical Society
14-Dec-1998


Page: 1

Related biology news :

1. Humans march to a faster genetic drummer than primates, UC Riverside research says
2. UC Riverside researcher takes snapshots of the movement of molecules in a billionth of a second
3. UC Riverside researchers discover new way to identify cell growth
4. UC Riverside professor to spend year with US State Department
5. UC Riverside researchers develop low-carb corn with enhanced protein and oil
6. UC Riverside researchers improve drought tolerance in plants
7. Plant sex protein identified at UC Riverside
8. UC Riverside researchers publish paper on botulism detection system
9. UC Riverside to convene conference on genetically modified organisms, Oct. 14-17, 2003
10. UC Riverside plant pathologist awarded $1 million grant to study virus assembly
11. UC Riverside study indicates mosquito coils may cause cancer

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Rivers May Emitting Substance Involved Ozone Destruction

(Date:10/17/2014)... – Accurate knowledge regarding Ebola is critical and pertinent ... of hazardous global outbreak and epidemic. The Journal, ... a special issue, Ebola Virus and Public Health, to ... knowledge in this critical societal moment. , On ... Ebola for Clinicians . The primer was prepared by ...
(Date:10/17/2014)... This news release is available in German . ... for only a very few drugs. When treating overdoses, doctors ... Treatment is especially difficult if there is a combination of ... is playing and accidentally swallows his grandmother,s pills? ETH professor ... Zurich wanted to find an answer to this question. "The ...
(Date:10/16/2014)... managers have a new synthesis of recent research findings ... forests in the two states. , The Ecology ... and Washington: A Synthesis of the Relevant Biophysical Science ... report published by the U.S. Forest Service,s Pacific Northwest ... from managers for a synthesis of the large body ...
Breaking Biology News(10 mins):Emergency aid for overdoses 2Emergency aid for overdoses 3New report synthesizes best available science on management of moist mixed-conifer forests 2
(Date:10/22/2014)... -- Nuvilex, Inc. (OTCQB: NVLX) – According to the ... living with diabetes, with  that number expected to grow ... for diabetes treatments is approximately $500 billion.  ... pancreatic cancer.  Pancreatic cancer is the fourth most common ... the United States , and according to a ...
(Date:10/20/2014)... The report “Pharmacy Automation Systems Market by ... Systems, Table-top Counters) by End-user (Inpatient Pharmacy Automation, ... to 2019” analyzes and studies the major market ... Asia-Pacific, and the Rest of the World (RoW). ... spread through 300 pages and in-depth TOC on ...
(Date:10/20/2014)... PARK, Calif. , Oct. 20, 2014 /PRNewswire/ ... today that the Company has signed a Notice ... of Regenerative Medicine (CIRM), effective October 1, 2014.  ... Clinical Development payments and the release of additional ... million CIRM grant award for clinical development of ...
(Date:10/20/2014)...  GenVec, Inc. (NASDAQ: GNVC ) today announced ... its board of directors effective on October 24, 2014.   Dr. ... as its chairman from June 2006 to November 2013.  During ... Governance and Audit Committees of the board.  ... dedicated service to GenVec, and its stockholders," said Wayne ...
Breaking Biology Technology:Nuvilex Brief Analyst Report: Thinking Outside the Box by BrokerBank Securities, Inc. 2Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 2Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 4Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 2Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 3Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 4Zola P. Horovitz To Retire From GenVec Board 2
Cached News: