Record Display for the EPA National Library Catalog


Main Title Evaluation of Techniques for the Measurement of Low Concentrations of Trace Gases in the Atmosphere.
Author Decke, Clifford E. ; Smit, James R. ; Ortma, Gordon C. ;
CORP Author Research Triangle Inst., Durham, N. C.
Year Published 1970
Report Number CPA-22-69-109; 0956;
Stock Number PB-208 239
Additional Subjects ( Atmospheric composition ; Gas analysis) ; ( Air pollution ; Gas analysis) ; ( Coulometers ; Gas analysis) ; ( Chemiluminescence ; Gas analysis) ; ( Marine atmospheres ; Gas analysis) ; Ozone ; Oxidants ; Carbon monoxide ; Methane ; Trace elements ; Calibration ; Air pollution detection
Library Call Number Additional Info Location Last
NTIS  PB-208 239 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 90p
A research experiment was conducted from Wilmington, North Carolina to the vicinity of the equator and return. Ozone, total oxidant, carbon monoxide; and methane concentrations were measured and comparative evaluation of the chemiluminescent and coulometric techniques for measuring ozone and oxidant of low atmospheric concentrations was conducted. The results suggest that both the chemiluminescent and coulometric measurement techniques will provide useful data at the low concentrations found in a relatively unpolluted marine environment. The chemiluminescent meter is more reliable than the coulometric meter under the conditions encountered. Although a precise quantitive estimate of the accuracy of the two techniques cannot be made on the basis of the data obtained, the evidence indicates that the chemiluminescent technique is significantly more accurate. (Author)