 |
||||
|
||||
|
|
|
 |
||
|
||||
      |
GLERL What's New: 1999
Great Lakes Environmental Research
Laboratory
Distinguished Scientist Seminar Series
Dr. Mace Barron
Hagler Bailly/Strauss Consulting
"Assessing the Toxicity of Spilled Petroleum"
Location: Great Lakes Environmental Research Laboratory
2205 Commonwealth Blvd.
Ann Arbor, MI 48105-2945
Date: Tuesday, September 7th, 1999
Time: 11:00 am
Room: 105 (Main Conference Room)
ABSTRACT: This seminar will summarize research evaluating the toxicity of oil chronically discharging to coastal wetlands, estuarine, and intertidal areas near the Nipomo dunes, California. The toxicity assessment included testing the toxicity to endemic species (sand crabs) and the photoenhanced toxicity to crustaceans, fish, and amphibians. Light intensity and spectra were quantified in aquatic habitats using a scanning spectroradiometer and then reproduced in the laboratory using a USGS solar simulator. Analytical chemistry measurements by GC/MS included C10 to C30 alkanes, 41 PAHs and alkyl homologs, and 53 heterocyclic aromatics. Injury thresholds were developed and compared to petroleum concentrations in aquatic habitats to assess risks to site biota. GIS mapping was used to overlay occurrences of special status species with areas exceeding injury thresholds.
Last updated: September 19, 2002 mbl