Total PCB concentrations in sediment, water, macroinvertebrates and spiders and the lower Ottawa River (Toledo, OH) between 2009-2015
Dates
Publication Date
2023-12-11
Start Date
2009-08-25
End Date
2015-09-11
Citation
Otter, R.R., and Walters, D.M., 2023, Total PCB concentrations in sediment, water, macroinvertebrates and spiders and the lower Ottawa River (Toledo, OH) between 2009-2015: U.S. Geological Survey data release, https://doi.org/10.5066/P9XDAKOF.
Summary
Polychlorinated biphenyl (PCB) concentrations were measured in the lower Ottawa River in 2009 before dredging and after dredging in 2011, 2012, 2013, and 2015. Media collected for analysis included sediment, water, macroinvertebrates, and tetragnathid spiders at 18 stations. At each station 16 surface sediment core samples (top 15 cm) were collected and composited together with a mechanical mixer to achieve a homogeneous composite sample. Mid-depth water column samples were collected using a Van Dorn, Niskin or similar type sampler. Artificial substrate samplers (Hester Dendys) were used to collect aquatic macroinvertebrates. Riparian spiders (family Tetragnathidae) were collected from their webs by gloved hand at night within 1 meter [...]
Summary
Polychlorinated biphenyl (PCB) concentrations were measured in the lower Ottawa River in 2009 before dredging and after dredging in 2011, 2012, 2013, and 2015. Media collected for analysis included sediment, water, macroinvertebrates, and tetragnathid spiders at 18 stations. At each station 16 surface sediment core samples (top 15 cm) were collected and composited together with a mechanical mixer to achieve a homogeneous composite sample. Mid-depth water column samples were collected using a Van Dorn, Niskin or similar type sampler. Artificial substrate samplers (Hester Dendys) were used to collect aquatic macroinvertebrates. Riparian spiders (family Tetragnathidae) were collected from their webs by gloved hand at night within 1 meter of the shoreline at each sampling station. All extracts were analyzed for 121 PCB congeners via gas chromotography mass spectroscopy in the selected ion monitoring mode based on U.S. EPA Method 1668A and quantified using the method of internal standards.
Click on title to download individual files attached to this item.
Metadata_Ottawa_River_PCBs.xml Original FGDC Metadata
View
33.08 KB
application/fgdc+xml
PCB_Sample_Values.csv
41.35 KB
text/csv
PCB_Samples_QAQC.csv
34.51 KB
text/csv
Related External Resources
Type: Related Primary Publication
PCB concentrations in riparian spiders (Tetragnathidae) consistently reflect concentrations in water and aquatic macroinvertebrates, but not sediment: Analysis of a seven-year field study
These data are used to characterize PCB concentrations in abiotic compartments along with aquatic and shoreline invertebrates at the lower Ottawa River Area of Concern in Toledo, OH (USA). Future researchers can utilize this dataset to address ongoing research at this site and to monitor changes in PCB concentrations over time
