| Main Title |
NO2 Measuring System. |
| Author |
Birnbaum, M. ;
Tucker., A. W. ;
|
| CORP Author |
Aerospace Corp., Los Angeles, Calif. Electronics Research Lab.;Environmental Protection Agency, Washington, D.C. |
| Year Published |
1974 |
| Report Number |
EPA-68-02-1225; EPA-650/2-73-059; |
| Stock Number |
PB-234 225 |
| Additional Subjects |
Gas detectors ;
Nitrogen dioxide ;
Monitors ;
Prototypes ;
Gas analysis ;
Sensitivity ;
Gas lasers ;
Design ;
Performance evaluation ;
Calibration ;
Optical equipment ;
Data processing ;
Optical fitters ;
Air pollution ;
Laser induced fluorescence ;
Helium cadmium lasers ;
Air quality data ;
Air pollution detection
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-234 225 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
36p |
| Abstract |
The construction and operation of the Laser NO2 Monitor Prototype, are described in this report. Several new features not present in earlier embodiments of the laser-induced NO2 fluorescence monitor, were incorporated. A He-Cd laser was used for excitation. A new type of low fluorescence solution filter was developed which resulted in greatly improved sensitivity. Saturated water vapor levels did not result in any detectable interference. The response of the instrument with respect to concentration of NO2 was found to be strictly linear over the range tested, 10 to 1000 ppbv. Measurements of the ambient NO2 levels in the atmosphere in the vicinity of the laboratory building showed a highly satisfactory performance of the instrument. |
