摘要
为了研究木质人造板材释放气体的遗传毒性,用木质人造板材释放的不同浓度的甲醛气体对蚕豆vicia faba根尖进行染毒,用显微镜观测根尖细胞的微核率.结果表明,蚕豆根尖细胞微核率与甲醛气体的浓度有良好的正相关性.经1.24mg/m3和3.71mg/m3甲醛气体灌流染毒的细胞微核率与对照组之间具有显著性差异(P<0.01).甲醛气体可以通过液相的吸收产生高浓度的蓄积,从而引起浸泡其中的根尖细胞发生DNA损伤.
Object to study the genetic toxicity of the gas emitted from the artificial wood-based board. To expose the gases containing formaldehyde 1.24mg/m3 and 3.71mg/m3 on the vicia faba root tip, the micronucleus rates of the root tip cells were observed with a microscope. A good positive relationship was found between the formaldehyde gas concentration and the micronucleus rate of vicia faba root tip cells (P<0.01). The rates of 1.24mg/m3 and 3.71mg/m3 formaldehyde gas perfusion exposure were different markedly from the comparing groups. The formaldehyde in the exposure gas was accumulated with high concentration through liquid phase absorption, thereby, the DNA of the cells soaked in it was damaged.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
2003年第1期38-41,共4页
China Environmental Science
基金
"十五"国家科技攻关项目(2001BA704B01)
关键词
室内空气质量
本质人造板材
甲醛
气体灌流染毒
微核
indoor air quality
artificial wood-based boards
formaldehyde
gas perfusion exposure
micronucleus
