A USGS scientist analyzes dragonfly larvae samples for mercury as part of the Dragonfly Mercury Project.
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Analyzing dragonfly larvae samples as part of the Dragonfly Mercury Project.
A USGS scientist analyzes dragonfly larvae samples for mercury as part of the Dragonfly Mercury Project.
USGS scientist Tylor Rosera analyzes dragonfly larvae samples for mercury as part of the Dragonfly Mercury Project.
linkUSGS scientist Tylor Rosera analyzes dragonfly larvae samples for mercury as part of the Dragonfly Mercury Project.
USGS scientist Tylor Rosera analyzes dragonfly larvae samples for mercury as part of the Dragonfly Mercury Project.
linkUSGS scientist Tylor Rosera analyzes dragonfly larvae samples for mercury as part of the Dragonfly Mercury Project.
Two bottles one containing lake water sample
Two sample bottles at the Mercury Research Laboratory. Prepped bottle (empty) on right and bottle filled with sample on left from Red Lake, Minnesota.
Two sample bottles at the Mercury Research Laboratory. Prepped bottle (empty) on right and bottle filled with sample on left from Red Lake, Minnesota.
Mercury Research Laboratory team June 2023
Mercury Research Laboratory team at the Forest Products Laboratory in Madison, Wisconsin
Mercury Research Laboratory team at the Forest Products Laboratory in Madison, Wisconsin
Five purge bubblers
Five purge bubblers at the Mercury Research Laboratory. Preparing purge bubblers for sample analysis. Purging inorganic mercury on to a gold-coated bead trap. Chemically treat (reduce) the sample, purge it from the sample solution, capture onto gold coated bead trap, desorb the analyte on the instrument which has AFS detection.
Five purge bubblers at the Mercury Research Laboratory. Preparing purge bubblers for sample analysis. Purging inorganic mercury on to a gold-coated bead trap. Chemically treat (reduce) the sample, purge it from the sample solution, capture onto gold coated bead trap, desorb the analyte on the instrument which has AFS detection.
USGS scientist Mike Tate sets up the mass spectrometer to measure mercury
USGS scientist Mike Tate sets up the mass spectrometer for mercury isotope measurements.
USGS scientist Mike Tate sets up the mass spectrometer for mercury isotope measurements.
Collecting water sample at edge of Green Lake, Minnesota (Kandiyohi County)
Scientist Emeritus Dave Krabbenhoft collecting water sample at edge of Green Lake, Minnesota (Kandiyohi County).
Scientist Emeritus Dave Krabbenhoft collecting water sample at edge of Green Lake, Minnesota (Kandiyohi County).
Zebra Mussels on shore of Green Lake, Minnesota (Kandiyohi County)
Close up of the Green Lake, Minnesota (Kandiyohi County) shoreline showing zebra mussels washed up on shore, October 2021
Close up of the Green Lake, Minnesota (Kandiyohi County) shoreline showing zebra mussels washed up on shore, October 2021
Upper Midwest Water Science Center Forest Products Lab Wisconsin
Entrance to the USDA Forest Products Laboratory building in Madison, Wisconsin, home of the Upper Midwest Water Science Center Wisconsin office and the Mercury Research Laboratory.
Entrance to the USDA Forest Products Laboratory building in Madison, Wisconsin, home of the Upper Midwest Water Science Center Wisconsin office and the Mercury Research Laboratory.
MC-ICP-MS used for mercury stable isotope analyses
MC-ICP-MS used for mercury stable isotope analyses.
MC-ICP-MS used for mercury stable isotope analyses.
Nippon mercury analyzer for sediments and fish
Nippon mercury analyzer for sediments and fish.
Nippon mercury analyzer for sediments and fish.
Graduate student performing mercury uptake studies in plankton
Graduate student, Grace Armstrong, performing mercury uptake studies in plankton at Mercury Research Laboratory, Middleton, Wisconsin.
Graduate student, Grace Armstrong, performing mercury uptake studies in plankton at Mercury Research Laboratory, Middleton, Wisconsin.
Sediment core sample taken at Grubers Grove Bay Wisconsin
Sediment core sample taken at Grubers Grove Bay on the Wisconsin River, Wisconsin.
Sediment core sample taken at Grubers Grove Bay on the Wisconsin River, Wisconsin.
Mercury research team collecting fish in Everglades
USGS Mercury research team collecting fish in Everglades National Park, Florida.
USGS Mercury research team collecting fish in Everglades National Park, Florida.
Panoramic view of sampling site in Everglades
Panoramic view of USGS employees at a sampling site in Florida Everglades.
Panoramic view of USGS employees at a sampling site in Florida Everglades.
Filtration of water in the field at Everglades
Scientists filtering water in the field at Everglades National Park, Florida.
Scientists filtering water in the field at Everglades National Park, Florida.
Internal look at the MC-ICP-MS flight tube when magnet is removed
Internal look at the MC-ICP-MS flight tube when magnet is removed.
Internal look at the MC-ICP-MS flight tube when magnet is removed.
Row of lab bubblers sample purging prior to analysis
Row of lab bubblers sample purging prior to analysis at the Mercury Research Laboratory in Middleton, WI.
Row of lab bubblers sample purging prior to analysis at the Mercury Research Laboratory in Middleton, WI.
Methylmercury photodecomposition experiment on the roof of building
Methylmercury photodecomposition experiment on the roof of USGS building in Middleton, WI.
Methylmercury photodecomposition experiment on the roof of USGS building in Middleton, WI.
Erie pier pond in the Saint Louis River estuary in Duluth, MN
Erie pier pond in the Saint Louis River estuary in Duluth, MN.
Erie pier pond in the Saint Louis River estuary in Duluth, MN.
Assessing soil sampling locations at the Badger Army Ammunition Plant
Scientist in field assessing soil sampling locations at the Badger Army Ammunition Plant site in Sauk County, WI.
Scientist in field assessing soil sampling locations at the Badger Army Ammunition Plant site in Sauk County, WI.