| Main Title |
An evaluation of arsenite procedure for determination of nitrogen dioxide 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 |
Environmental Protection Agency, Office of Research and Development, National Environmental Research Center, |
| Year Published |
1974 |
| Report Number |
EPA-650/4-74-048 |
| Stock Number |
27711 |
| OCLC Number |
03808894 |
| ISBN |
pbk. |
| Subjects |
Air--Pollution--Measurement
|
| Additional Subjects |
Nitrogen dioxide ;
Gas analysis ;
Performance evaluation ;
Gas sampling ;
Gas flow ;
Air pollution detection ;
Sodium arsenites
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 650-4-74-048 |
|
Headquarters Library/Washington,DC |
06/09/2015 |
| EKBD |
EPA-650/4-74-048 |
|
Research Triangle Park Library/RTP, NC |
08/29/2017 |
| ELBD ARCHIVE |
EPA 650-4-74-048 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB-239 727 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
iv, 13 pages : illustrations ; 27 cm. |
| Abstract |
The report describes and evaluates the sodium arsenite manual procedure for measurement of NO2 in ambient air. The evaluation included ruggedness testing, as described by Youden. The method involves sampling for 24 hours with a restricted-orifice bubbler immersed in a NaAsO2-NaOH collecting solution. The range of the method is approximately 20 to 750 micrograms/cum . The method was insensitive to normal variations in orifice bubbler diameter, temperature of the absorbing solution during sampling, and concentration of arsenite. However, the ruggedness test identified NO and CO2 as positive and negative interferents, respectively; sample flow rate may also be a variable affecting the method response. |
| Notes |
Prepared under Program Element No. 1HA327, ROAP NO. 26AAF. Issued Nov. 1974. Includes bibliographical references (page 34). |
