Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Laboratory study to explore potential interferences to air quality monitors.
Other Authors
Author Title of a Work
Millar, Brenda.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
Publisher U.S. Environmental Protection Agency, Office of Air quality Planning and Standards,
Year Published 1999
Report Number EPA-454/C-00-002
Stock Number PB2001-106827
OCLC Number 47259243
Additional Subjects Interferences ; Air quality monitors ; Hydrogen sulfide ; Metal catalysts ; Poisoning ; Scrubbers ; Ozone monitors ; Ozone interference tests
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 454-C-00-002 Headquarters Library/Washington,DC 11/18/2013
EKBD  EPA-454/C-00-002 Research Triangle Park Library/RTP, NC 07/13/2001
NTIS  PB2001-106827 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 1 volume (unpaged) : illustrations ; 28 cm
The ozone reference measurement principle and calibration procedure, promulgated in 1971 and amended in 1979, is based on detection of chemiluminescence resulting from the reaction of ozone with ethylene gas. When ultraviolet (UV) absorption photometric analyzers were first approved as equivalent methods in 1977, they gained rapid, almost universal acceptance. Today, users have their choice of many approved UV instruments from several manufacturers. The analytical principle is based on absorption of UV light by the ozone molecule and subsequent use of photometry to measure reduction of the quanta of light reaching the detector at 254 nm. The degree of reduction depends on the path length of the UV sample cell, the ozone concentration introduced into the sample cell, and the wavelength of the UV light, as expressed by the Beer-Lambert law. Any ozone analyzer used for routine ambient air monitoring must be calibrated against a suitable ozone primary standard or a secondary standard directly traceable to a primary standard. However, the chemiluminescence method is not problem-free.
Cover title. EPA project officer: Brenda Millar. "December 1999." Includes bibliographical references.