Comparative acute toxicity of diethyleneglycol dinitrate to freshwater aquatic organisms

摘要

AbstractThe acute toxicity of diethyleneglycol dinitrate (DEGDN) to nine freshwater aquatic organisms was determined. Juvenile fathead minnow, bluegill, channel catfish and rainbow trout were exposed to the compound for 96 h. The invertebrates tested for 48 h included the neonate water flea, early‐young amphipod, midge larva and the mayfly larva. The effect of DEGDN on the growth of the green alga Selenastrum capricornutum was also studied.The toxicity of DEGDN was relatively low to the nine freshwater species tested. Toxicity values ranged from a 5‐d EC50 (standing crop) of less than 58.4 mg/L for the alga to a 96‐h LC50 of 491.4 mg/L for the fathead minnow. The most sensitive invertebrate, the daphnid, was more sensitive than the most sensitive fish, the blu