OLS : Record


Main Title A cryogenic preconcentration : direct FID (PDFID) method for measurement of NMOC in ambient air /
Author McElroy, Frank F.; Thompson, V. L.; Richter, H. G.
CORP Author Environmental Monitoring Systems Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory,
Place Published Research Triangle Park, N.C. :
Year Published 1985
Report Number EPA/600/4-85/063
Stock Number PB86-120631
OCLC Number 48689113
Subjects Chemical analysis; Cryogenics; Air pollution; Organic compounds; Sites; Sampling; Performance evaluation; Concentration(Composition); Remote sensing; State governments; Design criteria; Standards; Air pollution detection; Air pollution sampling; Air quality; Flame ionization detectors
Subject Added Ent Air--Pollution--Measurement.; Organic compounds.; Ozone.
Internet Access
Description Access URL
Library   Call Number Additional Info Location Date Modified
NTIS PB86-120631 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 85 pages : illustrations ; 28 cm
Abstract Accurate measurements of atmospheric concentration of non-methane organic compounds (NMOC) are necessary in the application of photochemical models that are used by states in developing the control strategies needed to achieve compliance with ambient air quality standards for ozone. NMOC measurements obtained with available continuous NMOC analyzers have often been of inadequate quality. Speciated gas chromotographic measurements, though adequate, are excessively difficult and expensive where speciated data are not needed. A simplified cryogenic preconcentration, direct flame ionization detection (PDFID) method that is sensitive and provides accurate measurements of ambient NMOC concentrations has been developed and standardized sufficiently to be recommended for use by state and local air pollution control agencies in the development of their ozone control plans. Recent refinements to the method are discussed, an automatic remote sampling system is described, and the performance (precision and accuracy) of the method is characterized, based on results from utilization of the method for NMOC analysis of 1375 air samples collected from 22 sites during the summer of 1984. A complete description of the method is also provided in an appendix.
Notes "October 1985." Microfiche.
Author Added Ent
Thompson, Vinson L.;
Richter, Harold G.
Corporate Au Added Ent Environmental Monitoring Systems Laboratory (Research Triangle Park, N.C.)
PUB Date Free Form 1986.
NTIS Prices PC A05/MF A01
BIB Level m
OCLC Time Stamp 20020103145529
Cataloging Source OCLC/T
Language eng
Origin OCLC
OCLC Rec Leader 01174nam 2200289Ka 45020