Green Bay Mass Balance (GBMB) Study
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 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
- GBMB datasets as one compressed file (ZIP) (26.1MB)
- GBMB datasets as 92 smaller compressed files
- When the files are uncompressed in a root directory using 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.
- Data documentation