Skip common site navigation and headers
United States Environmental Protection Agency
Great Lakes Monitoring
Begin Hierarchical Links EPA Home > Great Lakes > Monitoring  > Data Projects  > Green Bay Mass Balance

R/V Lake Guardian
Data Projects
Beach closings
Benthic invertebrates


Green Bay Mass Balance

Management Summary
The Green Bay Mass Balance (GBMB) Study was conducted in 1989-90 to pilot the technique of mass balance analysis in understanding the sources and effects of toxic pollutants in the Great Lakes' food chain. The study, headed by EPA's Great Lakes National Program Office (GLNPO) and the Wisconsin Department of Natural Resources, had many participants from the Federal, state, interagency, and academic communities. The study focused on four representative chemicals or chemical classes: PCBs, dieldrin, cadmium, and lead.

Green Bay Data Sets
The data have been compressed into 92 separate files using compression software. The data are also available in one compressed file for those with the bandwidth. It is 27 megabits in size.  When the files are uncompressed in a root directory with the maintain directory structure option the files will create a directory called gbdata with subdirectories. These subdirectories are disk numbers referred to in the documentation.  The available documentation is also available in Word Perfect 5.1 format for you to download (144kb in size).  Any questions concerning these data should be directed to Dave DeVault (Voice: 612-296-7253, Fax: 612-297-8683).


Begin Site Footer

EPA Home | Privacy and Security Notice | Contact Us