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OLS Field Name OLS Field Data
Main Title Analysis of Pollution from Marine Engines and Effects on the Environment. Southern Lakes.
Author Davis, H. L. ; Wilson., K. D. ;
CORP Author Boating Industry Associations, Chicago, Ill.;National Environmental Research Center, Cincinnati, Ohio.;Environmental Science and Engineering, Inc., Gainesville, Fla.
Year Published 1975
Report Number EPA-R-801799; EPA/670/2-75-063;
Stock Number PB-242 176
Additional Subjects Outboard engines ; Motor boats ; Exhaust gases ; Oil pollution ; Lakes ; Aquatic biology ; Water chemistry ; Nutrients ; Physical properties ; Metals ; Invertebrates ; Algae ; Biological productivity ; Aquatic plants ; Grasses ; Carbon dioxide ; Sampling ; Florida ; Two stroke cycle engines ; Dissolved oxygen ; Water pollution effects(Plants) ; Water pollution effects(Animals) ; Ecology ; Water pollution ; Air pollution ; Fresh water biology
Library Call Number Additional Info Location Last
NTIS  PB-242 176 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 244p
Abstract The study was conducted to determine the effects of two-cycle outboard engine emissions on Florida lakes using leaded fuel and drained and drainless engines. Field investigations were performed in three natural lakes of two to ten acres near Gainesville, Florida. One lake was treated with 'drainless' engines and one with engines which 'drained' unburned fuel into the water. The third lake served as a control. Biological components and water quality conditions in the three lakes were monitored by routine standard procedures for a time period of 18 months during which motors were operated at the rate of 2.4 gallons of fuel per million gallons of water per day. During the course of the field investigation, there was no overt evidence of any significant effect of motor emissions on the benthic macroinvertebrates, phytoplankton, periphyton, and fish taste; although the data indicated that plant production in the grassbeds may have increased as a result of engine operation. This increase in plant production was evident during the growing season when the availability of carbon dioxide limited plant growth in the grassbed community.
Supplementary Notes Prepared by Environmental Science and Engineering, Inc., Gainesville, Fla. See also PB-242 174, PB-242 175 and PB-242 177.
NTIS Title Notes Final rept. Apr 71-Apr 73.
PUB Date Free Form Jun 75
Category Codes 13B; 06F; 08H; 68D; 57H; 48G
NTIS Prices PC A11/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326605437
Origin NTIS
Type CAT