Record Display for the EPA National Library Catalog

RECORD NUMBER: 26 OF 74

OLS Field Name OLS Field Data
Main Title Evaluation of the National Trends Network's Site Placement Design.
Author Seilkop, S. K. ;
CORP Author Program Resources, Inc., Research Triangle Park, NC.;Environmental Monitoring Systems Lab., Research Triangle Park, NC.
Year Published 1987
Report Number EPA-68-01-6849; EPA/600/4-87/020;
Stock Number PB87-224697
Additional Subjects Data analysis ; Spatial distribution ; pH ; Tables(Data) ; Sulfates ; Nitrate deposits ; Acid deposition ; National Trends Network ; Site selection
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB87-224697 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 125p
Abstract
The National Acid Deposition Network/National Trends Network (NADP/NTN) consists of 200 wet deposition monitoring stations in the United States. Sufficient data has been collected to enable statistical analyses to be performed to determine if the site placement and numbers of sites are adequate to estimate temporal and spatial trends. Analysis of data from existing sites, assuming some sites were not present, and assuming additional sites were present were performed. Results showed that addition of new sites would not significantly increase the accuracy of concentration isopleths.