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以银川市区四二干沟和第四排水沟为对象,分枯、丰水期对氨氮、亚硝酸盐氮、砷、酚等主要污染物进行了监测,并参照该四项污染物浓度模拟配水,用紫露草微核技术,按沟水和配水分别进行了诱变性研究。排水沟原水及混合配水枯水期微核率比丰水期高,差异有高度显著性。配水单项污染物砷、氨氮、酚诱变微核率枯、丰水期都高,而混合水样微核率居中间水平,可能是各种物质间产生拮抗作用所致。研究证明,紫露草微核技术是监测环境污染物的一项简便、经济、有效的技术,微核率的高低与污染物浓度有明显梯度关系,对判断环境污染严重程度,分析对生物机体的远期危害,是个很好的生物学指标。
The main pollutants such as ammonia nitrogen, nitrite nitrogen, arsenic and phenol in sub-dry and wet-season were monitored in the areas of No.42gou and No.4 drainage ditches in Yinchuan urban area. According to the four pollutants concentration simulation With water, with the micro-nuclear technology purple grass, according to furrow and water were mutagenicity research. Drainage of raw water and mixed water dry period micronucleus rate higher than the wet season, the difference was highly significant. Water pollutants single arsenic, ammonia nitrogen, phenol mutagenic micronucleus rate withered, wet period are high, and mixed water samples micronucleus rate in the middle level, may be caused by a variety of antagonistic effects between substances. Studies have shown that the spiderweed micronucleus technology is a simple, economical and effective monitoring of environmental pollutants, the level of micronucleus rate and the concentration of pollutants have a significant gradient, to determine the severity of environmental pollution, biological analysis of far away from the body Hazard, is a good biological indicator.