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Main Title Health Effects of Swimming in Lake Pontchartrain at New Orleans.
Author Ktsanes, Virginia K. ; Anderson, Ann C. ; Diem, John E. ;
CORP Author Tulane Univ., New Orleans, LA. School of Public Health and Tropical Medicine.;Health Effects Research Lab., Cincinnati, OH.
Year Published 1981
Report Number EPA-600/1-81-027;
Stock Number PB81-178741
Additional Subjects Lake Pontchartrain ; Swimming ; Water quality ; Louisiana ; Recreation ; Bacteria ; Gastritis ; Enteritis ; Epidemiology ; Indicator species ; Signs and symptoms ; Water pollution ; Interviews ; Statistical data ; Diseases ; Public health ; Water pollution effects(Humans) ; New Orleans(Louisiana) ; Environmental health ; Illnesses ; Bioindicators ; Water sampling
Library Call Number Additional Info Location Last
NTIS  PB81-178741 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 47p
Abstract This two-year study measured health effects of swimming in marine recreational waters in a sub-tropical climate by testing the association between reported post-swim symptom rates and density of bacterial indicator organisms. The study replicated previous investigations conducted at beaches in temperate climates. Variation in water quality at the same site provided bacterial exposure levels for swimmers. Data were obtained from approximately 5400 swimmers and 2300 nonswimmer controls over the two years. The rates for gastrointestinal (GI) symptoms and the highly credible portion thereof were higher for swimmers than nonswimmers during both years of the study. This was also true of upper respiratory symptoms in 1978. Both in 1977 and 1978, the swimming associated rates for total and highly credible GI symptoms were higher for children than for adults. In both years a relationship between enterococci densities and gastrointestinal symptom rates in swimmers over age 9 establishes the importance of this indicator as a criterion of swimming water quality. Non-consistent findings for children with respect to E. coli do not rule out importance of this indicator but suggest perhaps a criterion level that could not be adequately tested in the second year.
NTIS Title Notes Final rept. 20 Jul 77-19 Jul 79.
PUB Date Free Form Mar 81
Category Codes 6F; 6M; 57U; 57K; 68G; 68D
NTIS Prices PC A03/MF A01
Primary Description 600/10
Document Type NT
Cataloging Source NTIS/MT
Control Number 323795238
Origin NTIS
Type CAT