Main Title |
Spatial Variation in Ozone Concentrations in Phoenix, AZ for 1997. |
CORP Author |
Environmental Protection Agency, Washington, DC. Office of Research and Development. |
Year Published |
2001 |
Report Number |
EPA 600/R-01/28 |
Stock Number |
PB2012-100641 |
Additional Subjects |
Air pollution monitoring ;
Ozone ;
Atmospheric composition ;
Arizona ;
Environmental exposure pathway ;
Human health ;
Health effects ;
Metropolitan areas ;
Population density ;
Maps ;
Statistical data ;
Phoenix(Arizona)
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB2012-100641 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
11p |
Abstract |
Statistical analyses of the human health effects of airborne pollutants based on aggregate population time-series data have often relied on ambient concentrations of pollutants measured at one or more central sites in a given metropolitan area. In the particular case of ground-level ozone pollution, central-site monitoring has been justified as a regional measure of exposure partly on grounds that correlations between concentrations at neighboring sites measured over time are usually high. In analyses where multiple monitoring sites provide ambient ozone concentrations, a summary measure such as an average has thus often been regarded as adequately characterizing the exposure distribution. Indeed, a number of studies have referred to multiple-site averaging as the method for measuring ozone exposure. This report revisits the practice of multiple-site averaging. The results are drawn from an analysis examining simultaneous mapping of population density and ambient ozone concentrations on the scale of a single metropolitan area. Because of the ready availability of data associated with a related research effort, the city selected for this analysis was Phoenix, AZ. |
Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. |
PUB Date Free Form |
Jun 2001 |
Category Codes |
68A; 68G; 43F |
NTIS Prices |
PC A03/MF A03 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
102300070 |
Origin |
NTIS |
Type |
CAT |