OverviewVermont Department of Environmental Conservation's study of sediment cores from Lake Champlain, dated by 210Pb and analyzed for Hg sedimentation flux. 2004-2005. Core locations selected to optimize sampling in the deposition center of each of five distinct lake basins within Lake Champlain. Source Agency: Vermont Department of Environmental Conservation ContactNeil Kamman, Environmental Scientist VI Address Phone: 802-241-3795 |
| Name of dataset | Sediment Cores from Lake Champlain (VT/NY), dated by 210Pb and analyzed for Hg sedimentation flux |
| Geographic area | Crown Point, NY to Point au Roche, NY |
| State/Province | NY, VT |
| Activity Category | Monitoring |
| Medium | sediment cores |
| Focal species | sediment cores |
| Tissue Types | sediment core |
| Approximate size of dataset | 118 |
| Positional data available? | yes |
| Start Date | 2004 |
| End Date | 2005 |
| Status | Complete |
| Collection season | summer |
| Current # Of Sampling Locations | 0 |
| Historic # Of Sampling Locations | 5 |
| Size of Sampling Area | 300,000 acres |
| Methods | Core locations selected to optimize sampling in a deposition center of a distinct lake basin |
| Individual or composite samples? | Individual Core Subsamples |
| Ecosystem Focus | Lake Champlain |
| Additional Info | 118 discrete Hg measurements across 5 cores, distributed along a north-south axis in Lake Champlain. Core locations were selected to optimize sampling in the deposition center of each of five distinct lake basins within Lake Champlain. |
| Data Use | Unrestricted for MercNet collaborators, By permission only |
| Quality Assurance | yes |
| Data Format | Microsoft Access, Microsoft Excel |
| Hg Measurements | Hg deposition, THg |
| Hg Measurement Units | mg/g or mg/kg (ppm) |
| Hg Measurement Weight | dw |
| Ancillary Data | percent solid, volatile solids (LOI), copper, arsenic, silver, cadmium, lead, vanadium, chromium, nickel, zinc |
| BRI has data? | no |
| Data downloadable on external website? | no |
| Dated sediment cores? | yes |
| Method used to date sediment | Pb-210 |
| Average Core Depth | 35-50 |
