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  3. Great Lakes Sediment Surveillance Program: Mercury Concentrations and Mercury Stable Isotopes in Sediments of the Laurentian Great Lakes

Great Lakes Sediment Surveillance Program: Mercury Concentrations and Mercury Stable Isotopes in Sediments of the Laurentian Great Lakes

Dates

Publication Date
Start Date
2021
End Date
2023

Citation

Janssen, S.E., Tate, M.T., Ogorek, J.M., Routhier, E.J., Filstrup, C.T., and Reavie, E.D., 2023, Great Lakes Sediment Surveillance Program: Mercury Concentrations and Mercury Stable Isotopes in Sediments of the Laurentian Great Lakes: U.S. Geological Survey data release, https://doi.org/10.5066/P9VB8GO6.

Summary

As part of the larger Great Lakes Sediment Surveillance Program (GLSSP), the U.S. Geological Survey Mercury Research Laboratory (MRL) partnered with the U.S. Environmental Protection Agency and the University of Minnesota-Duluth to assess contaminant concentrations within surface sediments and sediment cores from the Laurentian Great Lakes. Sediments were assessed for mercury concentrations and mercury stable isotopes to examine spatial trends and sources of mercury within the lakes. In 2021, 30 sites were surveyed in Lake Superior. Mercury concentrations within Lake Superior surface sediment ranged from 1.1 to 161.2 ng/g. Mercury isotopes displayed a range in δ202Hg from -0.12 to -1.74 ‰ with measurable Δ199Hg and Δ200Hg across all [...]

Contacts

Point of Contact :
Sarah E Janssen, U.S. Geological Survey, MIDCONTINENT REGION
Originator :
Sarah E Janssen, Michael T Tate, Jacob M Ogorek, Evan J Routhier, Christopher T Filstrup, Euan D Reavie
Metadata Contact :
Sarah E Janssen, U.S. Geological Survey, MIDCONTINENT REGION
Publisher :
U.S. Geological Survey
SDC Data Owner :
Upper Midwest Water Science Center
USGS Mission Area :
Ecosystems
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

Click on title to download individual files attached to this item.

GLSSP metadata_final.xml
Original FGDC Metadata
View 		21.81 KB application/fgdc+xml
T3_Hg_isotopes_GLSSP.csv 44.72 KB text/csv
T1_Site_Info_GLSSP.csv 3.27 KB text/csv
Data_Dictionary_GLSSP.csv 11.53 KB text/csv
T2_Hg_Concentration_GLSSP.csv 24.66 KB text/csv

Purpose

The purpose of this project was to provide information on toxic chemicals in sediments across all the Great Lakes. This project resulted in the sampling and chemical analyses for mercury in sediments, which supports restoration efforts within the Great Lakes by improving the overall understanding of the occurrence, source, and extent of chemicals of mutual concern.

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Communities

  • USGS Data Release Products
  • Upper Midwest Water Science Center

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9VB8GO6

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