360种农药制剂对斑马鱼的急性毒性研究

Study on the Acute Toxicity of 360 Formulated Pesticides to Brachydanio rerio

采用半静态法测定了360种常用农药制剂(包括135种有效成分)对斑马鱼的急性毒性,其中杀虫剂、杀菌剂、除草剂、植物生长调节剂等不同类别农药所占的比例分别为67.5%、16.1%、13.6%、2.8%。结果表明:49%的制剂对斑马鱼表现高毒或剧毒,涉及25种农药有效成分,主要为杀虫剂,杀菌剂和除草剂的毒性相对较低,微生物农药对斑马鱼的急性毒性较低,而部分植物源农药的急性毒性较高;相同有效成分的不同制剂之间由于有效成分含量、剂型及加工工艺的不同,会出现毒性存在差异的情况。

Totally 360 formulated pesticide products were determined for acute toxicity to zebra fish in laboratory by semi-static method.The insecticides,fungicides,herbicides and plant growth regulators take part of 67.5%,16.1%,13.6% and 2.8% respectively.The results indicated that the high toxicity and very high toxicity pesticides account for 49%,concerned 25 pesticide active ingredients（a.i.）,and most of them are insecticides,while the fungicides and herbicides with relative low toxicity.Regarding to the biological pesticides,the microbial pesticides tested in this experiment have low toxicity to zebra fish,but there are some botanical pesticides with very high toxicity.The toxicity of different pesticide formulations with same a.i.to zebra fish maybe varied for the difference in a.i.content,formulation type and processing technique.