OverviewU.S. EPA Large Lakes Research Station's Lake Michigan sediment cores. 1994-1996. Cores taken from around Lake Michigan, excluding most large and small bays. Analyzed for THg and MeHg. Source Agency: US Environmental Protection Agency ContactRonald Rossman, Research Chemist Address Phone: 734-692-7612 Fax: 734-692-7603 |
| Name of dataset | US EPA Large Lakes Research Station: Lake Michigan Sediment Cores (1994-1996) |
| Geographic area | Lake Michigan |
| State/Province | MI |
| Activity Category | Monitoring |
| Medium | sediment cores |
| Focal species | sediment cores |
| Tissue Types | sediment core, grab sample (water) |
| Approximate size of dataset | 2500 |
| Positional data available? | yes |
| Start Date | 1994 |
| End Date | 1996 |
| Status | Complete |
| Historic # Of Sampling Locations | 49 cores, 60 grab samples |
| Size of Sampling Area | all of Lake Michigan except Green Bay and other large and small bays |
| Individual or composite samples? | Individual Core Subsamples |
| Ecosystem Focus | Lake Michigan |
| Data Use | Unrestricted |
| Quality Assurance | yes |
| Data Format | other electronic format |
| Hg Measurements | THg, MeHg |
| Hg Measurement Units | mg/g or mg/kg (ppm), ng/g (ppb) |
| Ancillary Data | texture on surface sediments, total carbon, organic carbon, inorganic carbon, total phosphorus, lead |
| BRI has data? | no |
| Data downloadable on external website? | no |
| Other Databases | Great Lakes National Program Office (GLNPO) |
| Dated sediment cores? | yes |
| Method used to date sediment | Pb-210 |
| Person Who Conducted Dating | John Robbins and David Edgington |
| Comments | Other datasets are described in the link below. All nutrient and dating data are the property of the NOAA Great Lakes Environmental Research Laboratory. Many of those data reside in electronic form with the Great Lakes National Program Office (GLNPO). Mercury and metals data reside with Ron Rossman. Only surficial sediment total mercury results are in the GLNPO database. |
