PARENT SESSION
PT5 - Fate & Effects of Metals: Aquatic Biology
Tuesday, 19 November 2002
8:00 AM to 6:30 PM
Exhibit Hall
(P604) Evaluating multiple stressors in Aquatic Environments: Metals and low pH.
Benfield, Gary*,1, 1 The VEGA Group, Mount Pleasant, South Carolina
ABSTRACT- This abstract will summarize work conducted during an ecolgical risk assessment conducted at a former phosphate fertilizer plant that is a NPL site in Charleston, SC. The work used three separate toxicity tests: Seed clam (Mercenaria mercenaria) growth bioassay (conducted in situ and in laboratory), grass shrimp (Palaemonetes pugio) bioassay, and the acute Mysidopsis bioassay. These tests were conducted over a contaminant (As and Pb) gradient as well as a surface water pH gradient and separate effects levels were generated for contaminants and pH, as well as a combined effects level (utilizing in situ testing).
Key words: ecological risk assessment, lead, arsenic, aquatic toxicity