乙腈的水生态基准

本文参照美国国家环保局推荐的“推导保护水生生物及其用途的国家水质基准的技术指南”，根据我国水生生物区系特点，通过水生生物毒性试验研究和制定石油化工废水中重要污染物—乙腈的水生态基准。试验动物涉及到4个门、6个纲、8个科、13属和13个种。文中根据乙腈对13种水生动物的急性毒性试验，对水生动物的慢性毒性试验以及对水生植物浮萍的生长抑制试验，推导出乙腈的基准连续浓度为413mg／L，基准最大浓度为1145mg／L。

THE WATER ECOLOGICAL CRITERIA OF ACETONITRILE

The water ecological criteria of acetonitrile, which is an important pollutant in the wastewater of acrylonitrileacrylic plants, were studied by conduting bioassay on the basis of features of the aquatic biota in China and with reference to "Guideline for deriving numerical national water quality criteria for the protection of aquatic organism and their uses" of the U. S. A The Criteria Continuous Concentration (CCC) and Criteria Maximum Concentration were calculated from the toxicity data of acute toxicity tests with thirteen animals species, chronic toxicity tests with aquac animals species and plant toxicity test with an aquatic plant Lemna minor. The CCC andCMC for acetonitrile were 413mg/L and 1145 mg/L, respechvely.