Data · collection
Accumulation of Dioxins and Furans in Sediment and Biota
Listed in NASA Earthdata CMR
Monitoring of sediment and crayfish (Pacifastacus leniusculus) was conducted in order to satisfy monitoring requirements set forth in the City of St.
Description
Helens National Discharge Elimination System (NPDES) Permit (Tetra Tech 1992). Samples were collected from five sites to evaluate the accumulation of dioxins and furans in sediment and crayfish.
Sediment and crayfish sampling primarily focused on locations downriver from the location of the outfall pipe. Sediment samples were collected and analyzed for seventeen dioxin/furan congeners, particle size distribution, total solids, and total organic carbon. All sediment data are presented on dry weight basis and TOC-normalized values are also provided in the report.
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Sampling station latitude and longitude were recorded from geographic coordinates provided by a Trimble Navigation Global Positioning System receiver. The area of study was the Lower Columbia River-St. Helens.
Each sediment sample consisted of a composite of at least four grab samples. Surface sediments (top 2 cm) were transferred to a stainless steel bowl and homogenized with a stainless steel spatula. The samples were placed in jars and stored on ice except for the samples designated for TOC analysis.
These samples were stored on dry ice. Target analytes were seventeen dioxin and furan congeners. Conventional analyses included particle size, total solids, and total organic carbon (TOC).
Analytical techniques included dioxins and furans (EPA Method 1613A), TOC (modified EPA Method 415.1), total solids (EPA Method 160.3.), particle size (Puget Sound Estuary Program Protocols). All results are reported on a dry weight basis. The information for this metadata was taken from the Columbia River Basin: Sediment Database Abstracts.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214610437-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214610437-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Contaminant Levels/Spills · Not provided · Pesticides · Rivers/Stream · Species Bioaccumulation
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214610437-SCIOPS | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/agriculture/agricultural-chemicals/pesticides | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecological-dynamics/ecotoxicology/species-bioaccumulation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/freshwater-ecosystems/rivers-stream | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/human-dimensions/environmental-impacts/contaminant-levels-spills | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |