| Main Title |
Evaluation of the Sodium Arsenite Method for Measurement of NO2 in Ambient Air. |
| Author |
Margeson, John H. ;
Beard, Michael E. ;
Suggs., Jack C. ;
|
| CORP Author |
Environmental Research Lab.-Duluth, Minn. |
| Year Published |
1977 |
| Report Number |
EPA/600/J-77/040; |
| Stock Number |
PB-271 767 |
| Additional Subjects |
Nitrogen dioxide ;
Gas analysis ;
Air pollution ;
Laboratory equipment ;
Chemical analysis ;
Monitoring ;
Performance evaluation ;
Concentration(Composition) ;
Absorbers(Materials) ;
Sodium inorganic compounds ;
Reprints ;
Air pollution detection ;
Sodium arsenite analysis
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-271 767 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
6p |
| Abstract |
The sodium arsenite method for measurement of nitrogen dioxide in ambient air was evaluated. The method has a constant-high collection efficiency (82%) for nitrogen dioxide, and is insensitive to normal variations in operating parameters. Nitric oxide and carbon dioxide are positive and negative interferents, respectively. The combined average effect of these interferents, over ambient levels, is a positive bias of 9.9 microgram/cubic m. This bias, although statistically significant, is minor (10%) in relation to the ambient air standard of 100 microgram NO2/cubic m and does not warrant modification of the method to remove the interference. |
| Supplementary Notes |
Pub. in APCA Jnl., v27 n6 p553-556 Jun 77. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Evaluation of the Sodium Arsenite Method for Measurement of NO2 in Ambient Air. |
| PUB Date Free Form |
1977 |
| Category Codes |
7D; 68A; 99A |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/08 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323724092 |
| Origin |
NTIS |
| Type |
CAT |
