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RECORD NUMBER: 24 OF 1029

OLS Field Name OLS Field Data
Main Title Air Quality Monitoring in Atlanta with the Differential Optical Absorption Spectrometer.
Author Conner, T. L. ; Stevens, R. K. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher 1991
Year Published 1991
Report Number EPA/600/D-91/086;
Stock Number PB91-191239
Additional Subjects Air pollution monitoring ; Optical spectrometers ; Standards ; Field tests ; Performance evaluation ; Nitrogen oxides ; Ozone ; Sulfur dioxide ; Formaldehyde ; Benzene ; Toluene ; Xylenes ; Nitrous acid ; Gas chromatography ; Atlanta(Georgia) ; Differential optical absorption spectrometry
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB91-191239 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/04/1991
Collation 16p
Abstract The U.S. Environmental Protection Agency (EPA) evaluated a differential optical absorption spectrometer (DOAS) long path pollutant monitoring system during July and August of 1990 in Atlanta, GA. Federal Reference Method (FRM) instruments and a gas chromatograph (GC), which measure a number of gas phase air pollutants at a point, were operated concurrently as part of a larger US EPA study of ozone and its precursors in Atlanta. The DOAS was configured to measure the pollutant concentrations of SO2, NO2, O3, nitrous acid, formaldehyde, benzene, toluene and o-xylene over two open paths with 1099 m and 1824 m, respectively, between light source and light receiver. Nitric oxide (NO) and ammonia (NH3) were measured over a third path of only 143 m. In the communication the features of the DOAS system are described and results of the Atlanta, GA evaluation of the system are discussed. Comparisons are made between the DOAS open path measurements and FRM or GC measurements made concurrently at a location near the DOAS light receivers.
Category Codes 68A; 99A
NTIS Prices PC A03/MF A01
Primary Description 600/09
Document Type NT
Cataloging Source NTIS/MT
Control Number 120721772
Origin NTIS
Type CAT