Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title The urban perspectives of acid rain : workshop summary /
Author Holdren, G. R. ; Strickland, T. C. ; Cosby, B. J. ; Marmorek, D. ; Bernard, D.
Other Authors
Author Title of a Work
Tonn, Bruce E.
CORP Author ManTech Environmental Technology, Inc., Corvallis, OR. ;Virginia Univ., Charlottesville. Dept. of Environmental Sciences. ;Environmental and Social Systems Analysts Ltd., Vancouver (British Columbia).;Corvallis Environmental Research Lab., OR.;Department of Energy, Washington, DC.
Publisher Oak Ridge National Laboratory, U.S. Dept. of Energy,
Year Published 1993
Report Number DE-AC05-84OR21400; EPA-68-C8-0006; EPA/600/J-93/260
Stock Number PB93-212660
OCLC Number 53438117
Additional Subjects Deposition ; Atmospheric circulation ; Air pollution ; Aquatic ecosystems ; Terrestrial ecosystems ; Sulfates ; Inorganic nitrates ; Mathematical models ; Steady state ; Statistical analysis ; Populations ; Damage assessment ; Maps ; Response ; Reprints ; Critical loads ; Biogeochemical processes
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  ZZ-1346 Research Triangle Park Library/RTP, NC 11/14/2003
NTIS  PB93-212660 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 1 volume (various pagings) : illustrations, maps ; 28 cm
The critical loads approach is emerging as an attractive means for evaluating the effects of atmospheric deposition on sensitive terrestrial and aquatic ecosystems. Various approaches are available for modeling ecosystem responses to deposition and for estimating critical load values. These approaches include empirical and statistical relationships, steady-state and simple process models, and integrated-effects models. For any given ecosystem, the most technically sophisticated approach will not necessarily be the most appropriate for all applications; identification of the most useful approach depends upon the degree of accuracy needed and upon data and computational requirements, biogeochemical processes being modeled, approaches used for representing model results on regional bases, and desired degree of spatial and temporal resolution. Different approaches are characterized by different levels of uncertainty. If the limitations of individual approaches are known, the user can determine whether an approach provides a reasonable basis for decision making. Several options, including point maps, grid maps, and ecoregional maps, are available for presenting model results in a regional context. These are discussed using hypothetical examples for choosing populations and damage limits.
Cover title. "Sponsored by the Office of the Director, National Acid Precipitation Assessment Program." Workshop held Sept. 23-24, 1992, in Raleigh, N.C. Martin Marietta Energy Systems, Inc. Contract Number: DE-AC05-84OR21400 "June 1993"--Cover.