偏二甲肼(简称UDMH)是火箭燃料的主要液体推进剂,同时也可作硬水处理剂和作物生长除莠剂、病毒生长抑制剂、抗氧剂等。由于它是一种潜在致癌和致突变物质,所产生的环境污染问题日益引起人们的重视。据报导UDMH对棉花、斑豆、莴苣和紫花苜蓿等幼苗有毒害作用,但对其它蔬菜影响的研究甚少,特别是用含有UDMH的污水灌浇蔬菜是否会在蔬菜内积累,国内外尚无这方面的研究报导,我们于1987～1990年进行了研究,旨在为有关部门合理利用污水和制订农用水质标准提供科学依据,现将结果报告如下: 材料和方法 UDMH (referred to as UDMH) is the main liquid propellant rocket fuel, but also for hard water treatment agent and crop growth herbicide, virus growth inhibitors, antioxidants and so on. Due to its potential carcinogenic and mutagenic substances, the issue of environmental pollution has drawn increasing attention. It has been reported that UDMH has toxic effects on seedlings of cotton, pinto beans, lettuce and alfalfa but little is known about the effects of other vegetables. In particular, whether UDMH-contaminated vegetable water is used to irrigate vegetables will not accumulate in vegetables at home and abroad Studies in this area reported that we conducted a study in 1987-1990 to provide a scientific basis for the relevant departments to make rational use of wastewater and to formulate standards for agricultural water quality. The results are reported as follows: Materials and Methods