Record Display for the EPA National Library Catalog

RECORD NUMBER: 123 OF 382

Main Title Effect of Population Density on the Results of the Study of Water Supplies in Five California Counties.
Author Conforti, P. M. ;
CORP Author California Univ., Berkeley.;Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1983
Report Number EPA/600/J-83/257;
Stock Number PB85-109486
Additional Subjects Asbestos ; Water pollution ; Water supply ; Assessments ; Malignant neoplasms ; Correlation ; Regression analysis ; Populations ; Density(Mass/volume) ; Reprints ; Drinking water ; Water pollution effects(Humans) ; San Francisco(California) ; Oakland(California)
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB85-109486 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 13p
Abstract
Two previous studies (1969-1971 and 1969-1974 study periods) examined the relationship between cancer incidence and chrysotile asbestos ingested through drinking water in the San Francisco-Oakland Standard Metropolitan Statistical Area (SMSA). Population density, an important covariable in the relationship between cancer and environmental agents, was not included in the analyses of these studies. The present work determines the effect of this covariable on the results of the second San Francisco-Oakland SMSA study. The conclusion of the reanalysis was that population density was distributed across the San Francisco-Oakland SMSA in such a way that it had little effect on the observation of a relationship between ingested asbestos and cancer.