Willamette River Toxic Pollutants in Sediment and Fish Tissue, 1988-1991

A study investigated toxic pollutants at 26 locations in Oregon's Willamette River and selected tributaries. The Oregon Department of Environmental Quality, U.S. EPA, and Oregon State University conducted sampling from 1988 to 1991 to screen for bioaccumulative pollutants in sediment and fish tissue. Target analytes included dioxins, furans, pesticides, PCBs, PAHs, and metals, analyzed using standardized EPA methods.

Use Cases

• Modeling historical pollutant distribution based on sampling at 26 locations representing ambient levels and pollution sources.
• Analyzing bioaccumulation patterns based on toxic pollutant data from sediment and fish tissue samples.
• Assessing aquatic toxicity effects based on the study's use of bioassays and other aquatic life testing methods.
• Comparing pollutant concentrations based on target analytes including dioxins, furans, pesticides, PCBs, PAHs, and metals.

Strengths

• Sampling conducted at 26 locations selected to represent ambient levels, industrial sources, and urban non-point source impacts.
• Target analytes cover multiple pollutant classes: dioxins, furans, pesticides, PCBs, PAHs, and metals.
• Analytical techniques follow specific, documented EPA methods (e.g., 1613A, 8270, 8080).

Limitations

• Last updated 1991-01-01 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Oregon Department of Environmental Quality (ODEQ), U.S. EPA, Oregon State University (OSU).

Collection Method

Field sampling with three to five grabs per location, homogenized and shipped on ice for laboratory analysis using EPA methods.

Time Range

1988 to 1991

Freshness

Last updated 1991-01-01 23:59:59.999000; freshness should be verified.

Geography

Willamette River and selected tributaries in Oregon, USA.