论文部分内容阅读
臭氧(O_3)是形成光化学烟雾的主要物质,是重要的环境污染物之一。由于O_3在常温常压下呈气态、具强氧化性、化学性质活泼,在空气中可很快分解或和其它物质发生反应,因此在一般的静式染毒柜中无法维持恒定的O_3浓度。国外在开展O_3的毒理学研究时均采用动式染毒柜,利用数万伏静电高压或紫外光使氧分解,产生O_3。但这种设备造价高,在设计时还应避免紫外光等因素对实验动物的影响,难度较大。目前国内对O_3的毒理学研究工作开展较少,至
Ozone (O_3) is the main material forming photochemical smog and is one of the important environmental pollutants. O_3 can not maintain a constant concentration of O_3 in a normal static exposure cabinet because O_3 is gaseous at room temperature and normal pressure, has strong oxidizing property, and is chemically active. It can decompose rapidly in air or react with other substances. O3 in foreign countries to carry out toxicological studies are used dynamic exposure cabinets, the use of tens of thousands of volts electrostatic high-pressure or ultraviolet light to oxygen decomposition, produce O_3. However, the high cost of such equipment, the design should also avoid the impact of ultraviolet light and other factors on experimental animals, more difficult. At present, the research on toxicology of O_3 has been carried out less in China