Persistence of DDT in the Yakima River Drainage, WashingtonEntry ID: BESTsed16
Abstract: This study was conducted in 1985 by Ecology's Water Quality
Investigations Section in response to results from the Basic Water
Monitoring Program (BWMP) which showed higher levels of DDT and
metabolites DDE and DDD in Yakima River fish than elsewhere in
Washington State between 1979 and 1984. The study's objective was to
evaluate the hazards to human health and aquatic life, identify
sources and ... determine if contamination was primarily due to recent
illegal use or historical applications (Johnson et al. 1986). Fish,
water, and bed sediments were analyzed. Sediment samples were
collected from the Yakima main stem and from tributaries considered to
have greatest potential for DDT contamination. These data were also
summarized and reported in a journal publication (Johnson et al. 1988).
The area of study was the Columbia River Basin, Yakima River.
Each sediment sample was homogenized by stirring with stainless-steel
spoons, stored in containers, immediately placed on ice, and shipped
to the laboratory.
Target analytes were organochlorine pesticides, Aroclor PCBs, and Hg were
the target analytes, but only the frequently detected organochlorine
compounds were reported. Mercury was detected in all samples.
Therefore, the database contains only p,p'-DDT, -DDE, -DDD and
o,p'-DDT results. Results for dieldrin, endosulfan, aldrin, Aroclor
PCBs, and mercury are also included. Conventional analyses included
sediment grain size, percent dry weight and total organic carbon content.
Analytical techniques included organochlorine pesticides and PCBs (EPA
608, additional information on analysis is provided in Appendix II of
the document); Mercury (EPA 245.2 with modifications). All results
are reported on dry weight basis. Total DDT concentrations reported
are based on the sum of detected concentrations of o,p'- and p,p'-DDT,
DDE, and DDD compounds.
The information for this metadata was taken from the Columbia River
Basin: Sediment Database Abstracts.
Data Set Citation
Dataset Title: Persistence of DDT in the Yakima River Drainage, Washington
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: 1985-09-01Stop Date: 1985-09-30
Quality Quality assurance/quality control included interlaboratory comparisons
between the Ecology/EPA Manchester laboratory and California
Analytical Laboratories (CAL), analysis of matrix spikes and matrix
spike duplicates, duplicate samples, and analysis of standard
reference materials. CAL was the contract laboratory responsible ... for
the fish tissue organochlorine analyses. The Ecology/EPA Manchester
laboratory was responsible for the sediment organochlorine and mercury
analyses and fish tissue mercury analyses. Data provided by CAL were
reviewed by the Manchester laboratory.
The laboratory data were reviewed and data qualifiers were added as
appropriate. The data qualifiers used were defined as follows:
U-Not detected. Value is the detection limit.
In general, sediment samples were collected in the vicinity of
suspected sources of DDT. 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: (360) 407-6766
Email: rjo461 at ECY.WA.GOV
Washington Department of Ecology
Province or State: WA
Postal Code: 98504-7710
Role: DIF AUTHOR
Phone: (301) 614-6898
Email: Tyler.B.Stevens at nasa.gov
NASA Goddard Space Flight Center Global Change Master Directory
Province or State: MD
Postal Code: 20771
Johnson, A., D. Norton, and W. Yake. 1986. Occurrence and
significance of DDT compounds and other contaminants in fish, water
and sediment from the Yakima River Basin. Washington State Department
of Ecology, Olympia, WA.
Johnson, A., D. Norton, and B. Yake. 1988. Persistence of DDT in the
Yakima River drainage, Washington. Arch. Environ. Contam. Toxicol.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-04-27
Last DIF Revision Date: 2012-12-12
Future DIF Review Date: 2002-04-27