Great Lakes Environmental Center (GLEC)

Aquatic Toxicology

Aquatic toxicity tests are frequently used in the National Pollutant Discharge Elimination System (NPDES) Permits Program to identify acutely and chronically toxic effluents and receiving waters. At the Great Lakes Environmental Center (GLEC) we have the experienced staff, equipment, and the resources necessary to conduct effective effluent biomonitoring, toxicity evaluations, and Toxicity Identification/Reduction Evaluations (Tl/RE) to meet a variety of client needs. Our aquatic toxicity laboratories are fully equipped to perform static toxicity and flow-through toxicity evaluations of complex effluents, storm water, ground water, whole sediment, sediment elutriate, sediment pore water and single compounds using a variety of vertebrate and invertebrate test species. Test organisms are cultured in-house and our staff is experienced in conducting acute and chronic toxicity tests with fathead minnow, Ceriodaphnia dubia, Daphnia magna, Daphnia pulex, Mysidopsis bahia, Hyallela Azteca, Lumbriculus variegatus, Chironomus tentans, and Chironomus riparius. Rapid toxicity tests of chemicals or complex effluents can also be performed using Microtox toxicity analyzer system. With our specialized laboratory facility and experienced staff, we can also conduct toxicity tests with any other aquatic organism to meet client requests. In addition, we are experienced in both developing and conducting Toxicity Identification and Reduction Evaluation (Tl/RE) procedures for controlling toxics.

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