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Title: Acute, aquatic toxicity of selected mineral particles. Technical report, September 1985-October 1986

Technical Report ·
OSTI ID:6171092

Graphite fibers, nickel-graphite fibers, polycrystalline iron whiskers, and graphite Mirco-260 (M-260) were tested to determine their toxicities to Daphnia magna. The graphite fibers and nickel-graphite fibers were ground with a mortar and pestle before testing. The M-260 had an EC50 of 80.6 mg/L for four pooled replicates. None of the other compounds caused any deaths at concentrations up to 100 mg/L. All the bioassays were 48-hr acute studies. A 96-hr growth inhibition assay using Ankistrodesmus falcatus was performed with the graphite. No inhibition of A. falcatus was observed; however, the growth of the algae was enhanced by the two lowest test concentrations.

Research Organization:
Chemical Research, Development and Engineering Center, Aberdeen Proving Ground, MD (USA)
OSTI ID:
6171092
Report Number(s):
AD-A-203535/0/XAB; CRDEC-TR-88143
Country of Publication:
United States
Language:
English