Recognizing that there is limited published aquatic toxicity information for liquid deicer chemicals, Clear Roads commissioned this current study to test the acute and chronic toxicity of several deicer chemicals using standard toxicity testing species. The goal of this study was to develop a ranking of the relative toxicity of the deicing materials. The project scope included toxicity testing of deicer chemicals in the following base chemical categories: sodium chloride, magnesium chloride, calcium chloride, potassium acetate and glycerol. Two inhibitor products were identified and tested for sodium chloride, magnesium chloride, and calcium chloride while only one product was available for potassium acetate and one for glycerol. Acute and chronic toxicity endpoints are provided as part of the study report.
This appendix contains the analytical reports that were created as part of the Clean Roads report "Determining the Aquatic Toxicity of Deicing Materials."
