Record Display for the EPA National Library Catalog

RECORD NUMBER: 1 OF 3

OLS Field Name OLS Field Data
Main Title Human exposure system for controlled ozone atmospheres /
Author Strong, Arthur A.
Other Authors
Author Title of a Work
Penley, Robert.
Knelson, John H.
Publisher U.S. Environmental Protection Agency, Health Effects Research Laboratory, Office of Research and Development,
Year Published 1977
Report Number EPA-600-1-77-048
Stock Number PB-276 618
OCLC Number 42838409
Subjects Air--Pollution--Measurement.
Additional Subjects Ozone ; Test chambers ; Humans ; Exposure ; Experimental data ; Safety engineering ; Concentration(Composition) ; Temperature ; Environmental tests ; Humidity ; Dew point ; Warning systems ; Measurement ; Environmental health ; Air pollution effects(Humans)
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=91013F4A.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 600/1-77-048 Region 3 Library/Philadelphia, PA 01/14/2000
EJBD ARCHIVE EPA 600-1-77-048 Headquarters Library/Washington,DC 06/04/2012
EJBD  EPA 600-1-77-048 Headquarters Library/Washington,DC 05/16/2014
EKAM  EPA 600/1-77/048 Region 4 Library/Atlanta,GA 11/19/1999
EKBD  EPA-600/1-77-048 Research Triangle Park Library/RTP, NC 06/06/2003
NTIS  PB-276 618 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation v, 18 p. : ill. ; 28 cm.
Abstract
An experimental exposure system for health effects research in environmental pollutants that permits the introduction and control of ozone (O3) to an acrylic plastic chamber in which a human subject actively resides is described. Ozone is introduced into the chamber air intake and is controlled by an electro-mechanical feedback system operating from the electrical output of an O3 gas analyzer. A continuous record of O3 concentration, temperature, and dew point is provided by an analog multipoint strip chart recorder. If the chamber O3 levels exceed preset limits, an alarm system automatically stops the O3 flow and switches the chamber exhaust to purge operation. A complete air exchange occurs every 72 seconds. In an emergency, the chamber can be purged in 190 seconds. Chamber temperature and humidity are dependent upon conditioned laboratory air.
Notes
"EPA-600/1-77-048." "October 1977." Includes bibliographical references (p. 13).