||Analysis of Pollution from Marine Engines and Effects on the Environment.
||Boating Industry Associations, Chicago, Ill.;National Environmental Research Center, Cincinnati, Ohio.;Environmental Control Technology Corp., Ann Arbor, Mich.
Outboard engines ;
Motor boats ;
Exhaust gases ;
Oil pollution ;
Aquatic biology ;
Crank cases ;
Water chemistry ;
Biological productivity ;
Two stroke cycle engines ;
Water pollution effects(Plants) ;
Water pollution effects(Animals) ;
Heavy metals ;
Water pollution ;
Fresh water biology ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The objective of the study was 'to obtain sufficient laboratory and field data to be able to predict the number of outboard engines which can be operated on any particular body of water without causing adverse effects on the aquatic environment.' To achieve this objective four small natural bodies of water were subjected to outboard engine emissions three times greater than saturation (maximum) levels occurring under 'real world' boating conditions. These natural water bodies were stressed at these high levels with outboard engine exhaust emissions for a period of three years. The study showed that there were no 'dramatic' or acute changes in the physical, chemical or biological characteristics of the water or sediments of the test lakes at these high stressing levels.