摘要
目的:观察室内甲醛污染对盆栽桂花成熟叶片的急性损害。方法:将盆栽培育的桂花放入自制染毒箱,分别用浓度为32.60 mg/ml、3.260 mg/ml、0.326 mg/ml、0.0326 mg/ml、0.00326 mg/ml的甲醛溶液3.1 ml以薰气法染毒桂花24 h,放入实验棚内继续培养10d,每组每株随机采摘100张叶片,采用双盲法观察叶片的形态特征变化。结果:各染毒组间与阴性对照组比较差异有极显著性(P<0.001)。当剂量达1.0 mg/m3,叶中部及叶尖开始出现明显不规则斑块状损害,并有剂量-反应关系。结论:甲醛空气污染可以导致盆栽桂花叶片出现急性损害,并表现出明显的效应。
Objective ：To observe the acute harm of formaldehyde pollution in air to the polluted Osmanthus fragrans leaves. Methods：As the major experimental materials, dwarfed Polluted Osmanthus fragrans exposed in different dose of formaldehyde by air for 24h. After cultured 10 d ,every group was randomly picked 100 leaves with double blind methods, the morphological character of Osmanthus fragrans leaves was observed.Results：In every group,leaves of mature osmanthus appeared different damage symptoms. There was a significant difference between each dose group and the negative control group（P〈0.001）. From the beginning of the dose of 1.0 mg/m3 group, the tip and the central of leaves began to appear clear irregular plaquelike damages and had the dose-effect relationship.Conclusion Formaldehyde air pollution can cause acute toxic effect to polluted Osmanthus fragrans leaves and have the dose-effeet relation.
出处
《现代医药卫生》
2009年第18期2738-2740,共3页
Journal of Modern Medicine & Health
基金
四川省教育厅自然科学基金资助项目[2006
314
2006B2008]
关键词
桂花叶片
甲醛
空气污染
急性损害
Osmanthus fragrans leaves
Formaldehyde
Air pollution
Acute harm
