Record Display : EPA National Library Catalog


Main Title Ecosystem stress from chronic exposure to low levels of nitrate /
Author Jorgensen, E. E.; Holub, S. M.; Mayer, P. M.; Gonsoulin, M. E.; Silva, R. G.;
Other Authors
Jorgensen, Eric E.
CORP Author National Risk Management Research Lab., Ada, OK. ;Oak Ridge Inst. for Science and Education, TN. ;Oklahoma State Univ., Stillwater. ;Oklahoma Cooperative Fish and Wildlife Research Unit, Stillwater.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory,
Year Published 2005
Report Number EPA/600/R-05/087
Stock Number PB2006-111254
OCLC Number 64664789
Subjects Ecosystem health--United States.; Nitrates.; Nitrogen--Environmental aspects.; Nitrates--Environmental aspects.; Nitrogen cycle.
Additional Subjects Ecosystems; Nitrogen; Environmental exposure pathway; Environmental impacts; Atmospheric deposition; Nitrates; Acid rain; Toxicity; Algae; Forests; Soils; Surface water; Ground water; Climate changes; Biological communities; Estuaries; Interactions; Stresses; Research program; Chronic exposure
Internet Access
Description Access URL
Library   Call Number Additional Info Location Last
EHAD EPA/600/R-05-057 Region 1 Library/Boston,MA 03/15/2006
EIAD EPA/600/R-05/087 Region 2 Library/New York,NY 04/05/2006
EJAD EPA 600/R-05-087 Region 3 Library/Philadelphia, PA 03/24/2006
EJBD ARCHIVE EPA 600-R-05-087 Headquarters Library/Washington,DC 02/17/2011
EJBD EPA 600/R-05/087 Headquarters Library/Washington,DC 03/15/2006
EJBM QH545.N5E26 2005 Headquarters Library/Washington,DC 10/27/2010
EKAD EPA-600-R-05-087 Region 4 Library/Atlanta,GA 10/31/2011
EMBD EPA/600/R-05/087 GWERD Library/Ada,OK 07/18/2011
ENAD EPA/600/R-05/087 Region 7 IRC Library/Kansas City,KS 03/22/2006
EOAD EPA 600/R-05/087 Region 8 Technical Library/Denver,CO 04/14/2006
ERAD EPA 600/R-05-087 Region 9 Library/San Francisco,CA 08/19/2013
ESAM EPA 600-R-05-087 Region 10 Library/Seattle,WA 08/11/2006
NTIS PB2006-111254 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/20/2006
Collation [35] p. : ill. ; 28 cm.
Throughout the eastern United States, from the Front Range of the Rocky Mountains to the Atlantic Ocean, bioavailable nitrogen has been falling in the rain since the industrial revolution. Bioavailable nitrogen is a limiting nutrient throughout this region. While long-term research conclusively demonstrates that exposure of soil ecosystems to large doses of bioavailable nitrogen leads to deleterious environmental impacts (i.e., eutrophication, toxic algae blooms, hypoxia, toxicity, acid rain, global climate change) that can compromise people's health and the economic vigor of communities, the potential effects of chronic exposure to lower doses of bioavailable nitrogen are relatively unknown. However, symptoms of compromised ecosystem function that may be attributable to chronic exposure to bioavailable nitrogen are widespread; many forests routinely leach nitrogen to surface and groundwater and nitrate-N concentration in estuaries perturbs aquatic food-webs and affects fisheries. These observations, among others, support the hypothesis that ecosystem function can be (and has been) deleteriously impacted by chronic exposure to low doses of bioavailable nitrogen.
"October 2005." Includes bibliographical references (p. 31-35).