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OLS Field Name OLS Field Data
Main Title Ambient Air Audits of the National Crop Loss Assessment Network (1981-1986).
Author Barnard, W. F. ; Mahowald, N. M. ;
CORP Author Environmental Monitoring Systems Lab., Las Vegas, NV.
Year Published 1988
Report Number EPA/600/D-88/019;
Stock Number PB88-160197
Additional Subjects Analyzers ; Air pollution ; Monitoring ; Farm crops ; Auditing ; Losses ; Ozone ; Sulfur dioxide ; Nitrogen oxides ; Carbon dioxide ; Concentration(Composition) ; Standards ; National government ; Photometers ; Ultraviolet spectra ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB88-160197 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 9p
Abstract
Since 1981 the Environmental Monitoring Systems Laboratory (EMSL) of the Environmental Protection Agency (EPA) at Research Triangle Park, North Carolina has been conducting performance audits of the ambient air analyzers used in the National Crop Loss Assessment Network (NCLAN). These audits provided the NCLAN researchers the means to assess the quality of the data gathered by their respective air monitoring projects. The paper summarizes and reviews the results for all the audits from July 1981 through August 1986. Approximately 288 analyzers were audited and only 9 were found to be outside the NCLAN's acceptable goal of + or - 15%. Approximately 185 ozone, 81 sulfur dioxide, 18 oxides of nitrogen, and 4 carbon dioxide monitors were audited.