Resource Description: NODC Accession Number 0000819
Online Links:
Environmental Quality Laboratory, Department of Environmental Services, City and County of Honolulu and Water Resources Research Center University of Hawaii at Manoa
Assess benthic environmental quality in region of sewer outfall
A modified 0.16-m2 van Veen grab sampler deployed from a stern-mounted A-frame on the research vessel Noi I Kai was used to obtain bottom samples at all seven stations. Penetration of the sampler was adequate for all replicates. The minimum penetration depth for all grabs was 8 cm and the maximum was 15 cm.
Samples for geochemical analyses (total organic carbon (TOC),
oxidation-reduction potential (ORP), sediment oil and grease (O&G),
total Kjeldahl nitrogen (TKN), and grain size) were obtained from the
grabs from which the biological subcores were taken. Each replicate
van Veen grab contained more than enough sediment for both purposes
(methods HI0020117). Three subsamples 7.6 cm in diameter by 5 cm
deep (one from each of three differnt grab samples) were taken from all
stations. The top 2 cm of sediment of each subsample were used for
geochemical analysis. Samples for TOC and sediment O&G analysis were
put in screw-cap jars, placed on ice, and taken to the laboratory for
analysis. Sediment analyses of sediment grain size, ORP, TKN, and O&G
followed EPA procedures. Analysis of TOC was carried out by PACE, Inc.
Laboratory (Southern California).
Person who carried out this activity:
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints: Dataset credit required
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Data format: | Excel and csv |
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Network links: |
https://accession.nodc.noaa.gov/819 |
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