| Main Title |
Long-path spectrophotometric instrumentation for in-situ monitoring of gaseous pollutants in the urban atmosphere : final report / |
| Author |
Prostak, Arnold. ;
Prosta, Arnold ;
Dy, Robert H.
|
| Other Authors |
|
| CORP Author |
Bendix Aerospace Systems Div., Ann Arbor, Mich. |
| Publisher |
Bendix Aerospace Systems Division, |
| Year Published |
1970 |
| Report Number |
PB-205 256; CPA 22-69-55; BSR 3027; APTD-0889 |
| Stock Number |
PB-205 256 |
| OCLC Number |
37496318 |
| Additional Subjects |
( Infrared spectroscopy ;
Gas detectors) ;
( Air pollution ;
Gas detectors) ;
( Ozone ;
Gas detectors) ;
Spectroscopic analysis ;
Infrared spectrophotometers ;
Monitors ;
Urban areas ;
Data processing ;
Sulfur dioxide ;
Computer programming ;
Background discrimination ;
Remote sensing ;
Air pollution detection
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD ARCHIVE |
EPA APTD-0889 |
|
Headquarters Library/Washington,DC |
02/18/2011 |
| EKBD |
EPA-APTD-0889 |
|
Research Triangle Park Library/RTP, NC |
08/30/1997 |
| ELBD RPS |
EPA APTD-0889 |
repository copy |
AWBERC Library/Cincinnati,OH |
04/13/2015 |
| ESAD |
APTD-0889 |
|
Region 10 Library/Seattle,WA |
01/02/1998 |
| NTIS |
PB-205 256 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
1 volume (various pagings, some folded) : illustrations, facsimiles ; 28 cm |
| Abstract |
A long-path spectrophotometric instrument is described for the quantitative measurement of ozone and other infrared absorbing gases (such as sulfur dioxide) in unconfined ambient air. A continuous variable filter wheel is used for wavelength selection from 7 to 14 microns. The instrument can be used with an active source at a range from 0.4 to over 1.6 km or it can be used to examine passively the radiant emittance from natural sources. A minicomputer is programmed to control the instrument and analyze the data in real time. The output of spectra or pollutant concentration is on a cathode ray tube, a teletypewriter, and/or punched paper tape. The instrument is sensitive to ozone concentrations ranging from 20 microgram/cu. m. (0.01 ppm) to 2000 microgram/cu. m. (1 ppm), with a measured noise of less than 4 microgram/cu. m. and a time constant of about two minutes. (Author) |
| Notes |
Project Officer: John S. Nader. Prepared for the Department of Health, Education, and Welfare, Public Health Service, Environmental Science, National Air Pollution Control Administration by Bendix Aerospace Systems Division under Contract Number CPA 22-69-55. "October 1970." |
