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Old Mouth of the Cowlitz River Sediment Evaluation

Listed in NASA Earthdata CMR

The old mouth of the Cowlitz River provides a channel from deep water in the Columbia River to old river mile 0.7 of the Cowlitz River.

Description

The site has been dredged in the past to maintain the channel. The objective of the study was to evaluate the sediments for chemical contaminants and physical parameters which would prohibit unconfined in-water disposal.

Analytical testing for metals, polynuclear aromatic hydrocarbons, phenols, pesticides, and PCBs were conducted on four sediment samples collected in January 1991. Six samples were analyzed for grain size and volatile solids. The area of study was the Lower Columbia River - Old mouth of Cowlitz River.

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Subsamples of sample cores were transferred to glass jars lined with teflon lids. Samples were cold stored in an ice chest. Target analytes were nine metals, polynuclear aromatic hydrocarbons, phenols, organochlorine pesticides, PCBs, grain size, and volatile solids.

All data are reported on a dry weight basis. Analytical techniques included the fact that samples were analyzed following EPA methodology for all chemical analyses. U.S. Army Corps of Engineers methodology was followed for physical parameters.

All results are reported on a dry weight basis. The information for this metadata was taken from the Columbia River Basin: Sediment Database Abstracts.

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Topics

Provenance · 1 source records, 12 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC1214610540-SCIOPS12 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/agriculture/agricultural-chemicals/pesticidessource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biosphere/ecological-dynamics/ecotoxicology/species-bioaccumulationsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/freshwater-ecosystems/rivers-streamsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/human-dimensions/environmental-impacts/contaminant-levels-spillssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:not-providedsource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
license_textsource · NASA CMRconnector:nasa_cmr@1.0.0
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0