HOME >> BIOLOGY >> NEWS
Reduced Nutrients Still Cause Problems In The Neuse And Tar-Pamlico Rivers

Concentrations of phosphorus and nitrogen have generally declined since 1980 in streams draining into the Albemarle and Pamlico Sounds in North Carolina but remain high enough to cause water-quality problems in the Neuse and Tar-Pamlico Rivers, according to the results of a 5-year investigation by the U.S. Geological Survey (USGS). These findings are consistent with recent public concerns about Pfiesteria, fishkills, algal growths, and pollutants in these two river basins.

A recently published USGS report indicates that concentrations of phosphorus and nitrogen in the Neuse River and Tar River exceed water-quality guidelines that were established by the U.S. Environmental Protection Agency in the 1960's. The report summarizes results of 5 years of study and 3 years of data collection as part of the USGS's National Water-Quality Assessment (NAWQA [pronounced nawkwa]) Program.

"Although the water-quality guidelines have been around for many years, they remain relevant by providing some important clues as to why these two rivers seem to have more than their share of water-quality problems," said Tim Spruill, a hydrologist with the USGS. According to the report, a 50-percent reduction in summertime nitrogen and phosphorus concentrations in the Neuse River and a 30-percent reduction in the Tar River and Contentnea Creek (a tributary of the Neuse River) might be necessary to attain the water-quality guidelines. "Mid- to late summer is usually when fishkills and nuisance algal blooms occur in rivers and estuaries because environmental conditions are more favorable for rapid algal growths at this time," said Spruill. When algae deplete the nutrients and begin to die, the decomposing cells deplete the oxygen in water. This lack of oxygen often results in the death of fish and other organisms.

Although nutrient concentrations in the Tar and Neuse Rivers in recent years have been linked to agricultural, urban, and industrial sources,
'"/>

Contact: Gerald L. Ryan
glryan@usgs.gov
(919) 571-4000
United States Geological Survey
16-Apr-1998


Page: 1 2 3

Related biology news :

1. Reduced daily eye patching effectively treats lazy eye
2. Reduced-calorie diet adds nearly two years to dogs life span
3. Vions TAPET Organisms Demonstrate Reduced Virulence, Increased Safety While Retaining Ability To Specifically Target Tumors
4. Mice Lacking Gene Show Reduced Alcohol Preference And Sensitivity
5. Marylands Death Rate For Pancreatic Cancer Surgery Reduced By Medical Regionalization
6. Low Cholesterol? Reduced Sodium? What Do These Terms Really Mean?
7. Nutrients cause increase in parasites and frog deformities
8. Study Bolsters Theory Of Plant Nutrients Trapped In Soil
9. Research Sheds Light On How Plants Regulate Distribution Of Nutrients
10. Nutrients, Ground Water, And The Chesapeake Bay - A Link With Pfiesteria?
11. Still waters? Clear-cutting robs the deep-sea of ancient treasures

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/22/2016)... On Monday, the Department of Homeland Security (DHS) issued ... the Biometric Exit Program. The Request for Information (RFI), ... that CBP intends to add biometrics to confirm when ... , in order to deter visa overstays, to ... Logo - http://photos.prnewswire.com/prnh/20160622/382209LOGO ...
(Date:6/9/2016)... June 9, 2016  Perkotek an innovation leader in attendance control systems is proud ... work hours, for employers to make sure the right employees are actually signing in, ... ... ... ...
(Date:6/2/2016)... , June 2, 2016   The Weather Company , ... Watson Ads, an industry-first capability in which consumers will be ... able to ask questions via voice or text and receive ... Marketers have long sought an advertising ... that can be personal, relevant and valuable; and can scale ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... ... 2016 , ... In anticipation of AxioMed’s exclusive cleanroom manufacturing ... President, Jake Lubinski will be traveling to Switzerland from December 5-10. Mr. Lubinski ... and Zurich to discuss the benefits of a viscoelastic disc. AxioMed received CE ...
(Date:12/2/2016)... Research and Markets has announced the addition of Jain ... to their offering. ... , An increasing ... anticipated. Nanotechnology will be applied at all stages of drug ... in clinical trials. Many of the assays based on nanobiotechnology ...
(Date:12/2/2016)... ... December 01, 2016 , ... The Conference Forum has announced that the ... will take place on February 1-3, 2017 at the Roosevelt Hotel in New York ... program provides a unique 360-degree approach, which addresses the most up-to-date information regarding business ...
(Date:12/2/2016)... , Dec. 1, 2016   SurePure, Inc. ... announced today that the Company has concluded an agreement ... right for a 90-day period to acquire units of ... of approximately USD 3.7 million.  Concurrently ... with Tamarack under which Tamarack will seek regulatory approvals ...
Breaking Biology Technology:
Cached News: