Identification and Quantification of Water Soluble Components of Outboard Motor Exhaust and of a Gasoline in a North Dakota Lake, and a Determination of Their Biological Effects Upon Selected Freshwater Organisms

摘要

Part I: A 7.0 horsepower (HP) and a 10.0 HP outboard motor were operated at 3,500 + or - 200 revolutions-per-minute (rpm) and 1,7-0 + or - 200 rpm respectively for 30 min in a 160 L tank of tapwater. Exhaust hydrocarbons were concentrated by passage through a C18 reverse phase extraction column, and then eluted with either ethylacetate or acetonitrile. Gas-liquid (GLC) and/or high performance liquid (HPLC) chromatography analyses were used for identification and quantification of nine hydrocarbons. Part II: A heavily used recreational lake (Lake Metigoshe, N.D.) was monitored for the presence and/or accumulation of water-soluble hydrocarbons. Surface and bottom samples were taken from five sites between March 1979 and January 1980. Samples were analyzed as described above.