Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Visibility in the Southwest : an exploration of the historical data base /
Author Trijonis, John.
Other Authors
Author Title of a Work
Yuan, Kung,
CORP Author Washington, Univ., St. Louis, Mo. ;Technology Service Corp., Santa Monica, Calif.;Environmental Sciences Research Lab., Research Triangle Park, N.C.
Publisher Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Available through the National Technical Information Service,
Year Published 1978
Report Number EPA 600/3-78-039; EPA-803896
Stock Number PB-282 942
OCLC Number 15262285
Subjects Visibility--Southwestern States. ; Air quality--Southwestern States.
Additional Subjects Air pollution ; Visibility ; Particles ; Trends ; Aerosols ; Sulfates ; Data analysis ; Regions ; Copper ; Atmospheric composition ; Southwest region(United States)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-3-78-039 Headquarters Library/Washington,DC 01/23/2014
EJBD  EPA 600-3-78-039 Headquarters Library/Washington,DC 07/22/2014
EKAM  QC976.V5T741 1978 Region 4 Library/Atlanta,GA 05/13/1994
EKBD  EPA-600/3-78-039 Research Triangle Park Library/RTP, NC 07/18/2003
ERAD  EPA 600/3-78-039 Region 9 Library/San Francisco,CA 09/04/2012
ESAD  EPA 600-3-78-039 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-282 942 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 108 p. : ill., tables ; 28 cm.
The historical data base pertinent to visibility in the Southwest is analyzed. The data base includes over 25 years of airport visibility observations and more than 10 years of NASN particulate measurements. The investigation covers existing levels of visibility, long-term trends in visibility, and visibility/pollutant relationships. Although still quite good, visibility in the Southwest has deteriorated over the past two decades. The haze levels in the Southwest appear to be mostly the result of secondary aerosols, especially sulfates. These conclusions are verified by decreases in sulfates and increases in visibility during the 1967-1968 industry-wide copper strike.
Includes bibliographical references (p. 101-103).