||National Study of Mercury Contamination of Fish. 4. Analytical Methods and Results.
Bahnick, D. ;
Sauer, C. ;
Butterworth, B. ;
Kuehl, D. W. ;
||Environmental Research Lab.-Duluth, MN. ;Wisconsin Univ.-Superior. Center for Lake Superior Environmental Studies.
||c15 May 94
Water pollution effects(Animals) ;
Test methods ;
Analytical chemistry ;
Quality assurance ;
Chemical analysis ;
Chemical residues ;
National Bioaccumulation Study ;
Flameless atomic absorption
||Some EPA libraries have a fiche copy filed under the call number shown.
The concentration of mercury has been determined in fish collected for a nation-wide survey of bioaccumulable chemical contaminants. Samples were prepared using standard digestion procedures and analyzed by flameless atomic absorption. Over 660 samples were analyzed from 374 sites representing 10 site classifications. The national mean value for all samples (ND=0) was 0.26 microgram/g. The mean value for fish collected below Public Treatment Works was the highest at 0.59 microgram/g. More than 90% of all sites contained fish with detectable mercury concentrations.