EVALUATION OF DIMETHYL METHYLPHOSPHONATE WITH SEDIMENTS, SAND AND SOIL, AND WATER USING THE VIBRIO-HARVEYI TOXICITY TEST

Toxicity of the chemical dimethyl methylphosphonate was evaluated usin g the bioluminescent marine bacterium Vibrio harveyi with buffer and s ediments (sand and soil). Endpoints were evaluated by bioluminescence (counts of light). This chemical's EC50 was determined using a methodo logy for bacterial bioluminescence toxicity testing. The chemical was tested using volumes at both one and nine fold. Results suggest that s ediments evaluated influence toxicity of this chemical causing both a reduction and enhancement based on counts.