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Squalicum Harbor (Bellingham Bay) Tributyltin (TBT) Investigation

Publication number Date Published
07-03-015April 2007
VIEW NOW Squalicum Harbor (Bellingham Bay) Tributyltin (TBT) Investigation (Number of pages: 100) (Publication Size: 1MB)

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Author(s) Blakley, N.
Description Sediments from the inner portion of the Squalicum Harbor Marina were analyzed for TBT in bulk sediment and sediment pore water.

TBT concentrations were lower than proposed regulatory limits for pore water.

The potential for TBT bioaccumulation was studied using Macoma clams exposed to the sediment under laboratory conditions. TBT concentrations in clams were lower than levels of concern from the scientific literature.

The number and variety of animals living in the sediments were reduced at sampling stations with higher TBT concentrations. However, this could be at least partly due to things related to TBT concentrations rather than the poisonous effects of this chemical acting alone.

The effect of TBT contamination on benthic invertebrate communities needs further investigation.
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Keywords regulatory, biological, water, sediment, paint, marina
WATERSHED Water Resource Inventory Area 01 Nooksack
DATA Environmental Information Management (EIM) #NBLA0003


Quality Assurance Project Plan: Squalicum Harbor Tributyltin (TBT) Investigation