Determination of the Toxicity to Aquatic Organisms of HMX and Related Wastewater Constituents. Part 3. Toxicity of HMX, TAX, and SEX to Acquatic Organisms

摘要

The chronic toxicity of HMX was studied utilizing Daphnia magna in a 28-day chronic and fathead minnow in an embryo-larval study. No adverse effects of exposure to 3.9 or 3.3 mg/L, respectively, were observed. These concentrations closely approximate the limit of aqueous solubility. The acute toxicity of TAX was studied utilizing aquatic organisms representing several different trophic levels in aquatic systems. Generally, no adverse effects of exposure were observed among any of the algae, fish or invertebrate species tested. Acute toxicity was observed only for 24-hour-old fathead minnow fry. This effect level closely approximated the limit of aqueous solubility of TAX at 600 mg/L. The acute toxicity of SEX was studied utilizing aquatic organisms representing several different trophic levels in aquatic systems. Generally, no adverse effects of exposure were observed among any of the algae, fish or invertebrate species tested up to the limit of aqueous solubility of ca. 12mg/L. SEX was acutely toxic only to 7-day-old fathead minnow fry at a concentration of 10 mg/L which is close to the aqueous solubility limit.