Selected Fish Tissue Contaminant Data from the U.S. EPA Columbia River Toxic Substances Study.Entry ID: BESTsed06
Abstract: The Columbia River and segments of the Snake and Willamette Rivers are
currently water quality limited due to the presence of elevated levels
of 2,3,7,8 - TCDD. As a result, U.S. EPA Region 10 established a
Total Maximum Daily Load (TMDL) of 6 mg of 2,3,7,8-TCDD/day based upon
state water quality standards applicable to the Columbia River basin
and the volume of water in the Columbia River. This ... project is part
of an effort to add to the data base on contaminant levels in aquatic
organisms in the Columbia River. The project focused on one or two
sampling locations in a limited segment of the river. Criteria for
choosing these locations were: (1) sampling at fishing sites has been
limited, (2) collecting organisms that are consumed by Native
Americans and others fishing in the Columbia River basin, (3)
collecting organisms that are of good indicators of contaminant levels
in the river and of levels of contaminants that may be ingested by
aquatic and terrestrial predators. Sediment samples were taken
between RM 146-149 and consisted of five grabs per station.
The area of the study was Columbia River - RM 146-149 above Bonneville
Samples consist of a composite of five grabs per station.
Target analytes were dioxins and furans; pesticides; PCBs; semi-volatiles
including PAHs; metals (including Hg and As).
Analytical techniques included dioxins and furans (EPA Method 1613A);
pesticides and PCBs (EPA 8081); semi-volatiles (EPA 8270/GPC); PAHs
(EPA 8270); metals (EPA 200.3 and 6010A); Hg (EPA 7471A); As (200.3
and 7060A). Results are reported on a dry weight basis. Total dioxin
and furan concentrations were determined by the laboratory as the sum
of the individual congeners that were detected.
Data Set Citation
Dataset Originator/Creator: U.S. Environmental Protection Agency
Dataset Title: Selected Fish Tissue Contaminant Data from the U.S. EPA Columbia River Toxic Substances Study.
Dataset Release Date: unknown
Dataset Release Place: Seattle, Washington
Dataset Publisher: U.S. Environmental Protection Agency, Region 10
Data Presentation Form: databaseOnline Resource: http://www.epa.gov/r10earth/data/crbdata.html?dioxin+#first_hit
Start Date: 1994-08-01Stop Date: 1994-09-30
Quality Internal standards, laboratory duplicates, matrix spikes, and method
blanks were used for data evaluation.
The laboratory data were reviewed and data qualifiers were added as
appropriate. The data qualifiers used were defined as follows:
B-Analyte was ... also found in the method blank;g-Results confirmed on a
DB-225 column;J-Analyte was detected but the result should be
considered an estimate;N-For organic analytes there is evidence that
the analyte is present in this sample. For metal analytes the spike
recovery is not within control limits; P-Detected above the instrument
detection limit but below the estimated minimum quantitation limit;
REJ-Rejected data. Data are unusable for all purposes; U-Not
detected. Value is the detection limit.
All data entered in the database were reviewed for data entry errors.
All detected errors were corrected.
Access Constraints None
Use Constraints None
Data Set Progress
Role: TECHNICAL CONTACT
Phone: (206) 553-2135
Fax: (206) 553-0119
Email: davoli.dana at epa.gov
U.S. Environmental Protection Agency, Region 10 0ea095, 1200 6th Avenue
Province or State: Washington
Postal Code: 98101
Davoli, D. 29 August 1994. Personal Communication (data package sent
to Steve Ellis, Tetra Tech, Inc., Redmond, WA). Selected fish tissue
contaminant data from the U.S. EPA Columbia River toxic substances
study. U.S. Environmental Protection Agency, Region 10, Seattle, WA.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-04-27
Last DIF Revision Date: 2017-08-24
Future DIF Review Date: 2002-04-27