| Main Title |
Evaluation of effects of NO, CO2, and sampling flow rate on arsenite procedure for measurement of NO2 in ambient air / |
| Author |
Beard, Michael E.
|
| Other Authors |
|
| CORP Author |
National Environmental Research Center, Research Triangle Park, N.C. Quality Assurance and Environmental Monitoring Lab. |
| Publisher |
Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1975 |
| Report Number |
EPA-650/4-75-019 |
| Stock Number |
PB-242 285 |
| OCLC Number |
15129417 |
| Subjects |
Air--Pollution--Measurement ;
Nitrogen oxides ;
Carbon dioxide
|
| Additional Subjects |
Nitrogen dioxide ;
Gas analysis ;
Arsenites ;
Nitrogen oxide(NO) ;
Carbon dioxide ;
Flow rate ;
Performance evaluation ;
Interference(Chemical analysis)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 650-4-75-019 |
|
Headquarters Library/Washington,DC |
01/06/2015 |
| EKBD |
EPA-650/4-75-019 |
|
Research Triangle Park Library/RTP, NC |
08/29/2017 |
| ELBD ARCHIVE |
EPA 650-4-75-019 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB-242 285 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
23 pages : illustrations, tables ; 28 cm. |
| Abstract |
The arsenite method for measurement of NO2 in ambient air was investigated to quantify the effect of sampling flow rate and NO and CO2 concentration on method response. NO and CO2 were previously identified as positive and negative interferents in the method. Flow rates of 220 to 270 cc/min had no effect on the method response; higher flow rates decreased the method response. Atmospheres containing NO2, CO2, and NO were sampled with the arsenite method in a 3x3x3 factorial experiment with five observations per cell. The concentrations were NO2--50, 150, and 250 micrograms/cu m; NO--50, 180, and 310 micrograms/cu m; CO2--200, 350, and 500 ppm. |
| Notes |
"April 1975." Includes bibliographical references (pages 21-22). |
