Record Display for the EPA National Library Catalog

RECORD NUMBER: 24 OF 55

OLS Field Name OLS Field Data
Main Title National dry deposition network : third annual progress report (1989) /
Author Edgerton, Eric Stuart, ; Lavery, T. F. ; Prentice, H. S.
Other Authors
Author Title of a Work
Lavery, Thomas F.
Prentice, Hugh S.
Boksleitner, Rudolph P.
CORP Author Environmental Science and Engineering, Inc., Gainesville, FL.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher U.S. Environmental Protection Agency,
Year Published 1991
Report Number EPA/600/3-91/018; 68-02-4451; EPA-68-02-4451
Stock Number PB91-181784
OCLC Number 24168112
Subjects Sedimentation and deposition.
Additional Subjects Deposition ; Air pollution sampling ; Dry methods ; Meteorology ; Air quality data ; Quality control ; Long term effects ; Concentration(Composition) ; Study estimates ; Site surveys ; Seasonal variations ; Ozone ; Aerosols ; Data quality ; Diurnal variations ; National Dry Deposition Network
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=30000OJE.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 600/3-91-018 Region 3 Library/Philadelphia, PA 08/23/1991
EJBD ARCHIVE EPA 600-3-91-018 Headquarters Library/Washington,DC 05/23/2011
EJBD  EPA 600-3-91-018 Headquarters Library/Washington,DC 08/07/2013
EKAM  EPA/600/3-91/018 Region 4 Library/Atlanta,GA 05/27/1994
EKCD  EPA/600/3-91/018 NHEERL/GED Library/Gulf Breeze,FL 07/17/2018
ELBD  EPA 600-3-91-018 AWBERC Library/Cincinnati,OH 11/08/2010
ERAD  EPA 600/3-91-018 Region 9 Library/San Francisco,CA 08/10/1991
ESAD  EPA 600-3-91-018 Region 10 Library/Seattle,WA 03/23/2010
ESBD  EPA/600/3-91/018 NHEERL/WED Library/Corvallis,OR 11/29/1991
NTIS  PB91-181784 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation xv, 125 pages
Abstract
The National Dry Deposition Network is ultimately to provide long-term estimates of dry acidic deposition across the continental United States. Fifty sites operated during 1989, 41 in the east and 9 in the west. Weekly average atmospheric concentrations of sulfate, nitrate, ammonium, sulfur dioxide, and nitric acid were measured (using three stage filter packs) throughout the year, while sodium, potassium, calcium, and magnesium were measured from January through September. Results showed species-dependent variability in atmospheric concentrations from site to site, season to season, and day to night. In general SO4(-2), NH4(+), SO2, and HNO3 concentrations were much higher (factor 5-10) at eastern sites than at western. On the other hand, NO3(-), Na(+), K(+), Ca(+2), and Mg(+2) concentrations were frequently comparable at eastern and western sites. Average SO4(-2), NH4(+), and HNO3 concentrations were typically highest during summer and lowest during fall. In contrast, SO2 and NO3(-) were highest in winter and lowest in summer. Day/night variability was low for aerosols, but frequently pronounced for SO2 and HNO3, especially during the summer and at sites surrounded by complex terrain. Ozone data for 1988 and 1989 showed marked differences between years, with notably higher concentrations in 1988. Approximations of annual dry deposition rates for SO4(-2), SO2, NO3(-), and HNO3 suggest that gaseous deposition greatly exceeds aerosol deposition and that dry fluxes are similar to wet deposition at numerous sites in the eastern U.S. Application of site-specific dry deposition models are needed to refine these estimates.
Notes
"EPA/600/3-91/018." "Contract #68-02-4451." "March 1991." "Office of Research and Development, Atmospheric Research and Exposure Assessment Laboratory." "Environmental Science & Engineering, Inc." "Project Officer Ruldolph P. Boksleitner." Includes bibliographical references.