Accession Number : ADA317858

Title :   Toxicity and Fate of Nickel-Coated Graphite in a Marine Environment.

Descriptive Note : Final rept. Jun-Dec 94,

Corporate Author : EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD

Personal Author(s) : Haley, M. V. ; Kurnas, C. W.

PDF Url : ADA317858

Report Date : AUG 1996

Pagination or Media Count : 19

Abstract : The toxicity of nickel-coated graphite fibers was examined using the marine amphipod Ampellsca abdita. Fibers were mixed into the top 1 cm of sediment at concentration from 10 to 50 mg/L. The 10-day EC50 to amphipods was 40 mg/L. Fate studies (21 days) were conducted in salt water with and without sediment. Fate studies were also conducted with the fibers ground to powder. Ground fibers allowed a higher concentration of nickel to dissolve into the water column. However, when mixed into sediment, the concentration of dissolved nickel is significantly less.

Descriptors :   *FIBERS, *TOXICITY, *COATINGS, *NICKEL COMPOUNDS, GROUND LEVEL, WATER, GRAPHITE, CARBON FIBERS, OCEAN ENVIRONMENTS, SEDIMENTS, SALT WATER, CRUSTACEA.

Subject Categories : Toxicology
      Miscellaneous Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE