二氧化氮对空气传播的委内瑞拉马脑炎病毒的影响。
Effect of NO 2 on airborne Venezuelan equine encephalomyelitis virus.
作者信息
Ehrlich R, Miller S
出版信息
Appl Microbiol. 1972 Mar;23(3):481-4. doi: 10.1128/am.23.3.481-484.1972.
Studies were conducted to determine the effect of nitrogen dioxide (NO(2)) on aerosol survival and biological decay rate of Venezulean equine encephalomyelitis (VEE) virus and spores of Bacillus subtilis var. niger. The NO(2) concentrations used in the experiments were 0.5, 5, and 10 ppm at 24 C and 85% RH. The survival of airborne VEE virus disseminated as particles 1 to 5 mum in diameter was significantly influenced by the presence of 5 ppm of NO(2). At this concentration, the biological decay rate increased threefold and the aerosol recovery and aerosol survival of the VEE virus were significantly lower than at 0.5 ppm or in the absence of NO(2). Airborne spores of B. subtilis were not significantly affected by as much as 10 ppm of NO(2).
开展了多项研究，以确定二氧化氮（NO₂）对委内瑞拉马脑炎（VEE）病毒以及枯草芽孢杆菌黑色变种孢子的气溶胶存活及生物学衰变率的影响。实验中使用的NO₂浓度在24℃和85%相对湿度条件下分别为0.5、5和10 ppm。直径为1至5微米的颗粒所传播的空气传播型VEE病毒的存活受到5 ppm NO₂的显著影响。在此浓度下，生物学衰变率提高了两倍，VEE病毒的气溶胶回收率和气溶胶存活率显著低于0.5 ppm时或不存在NO₂的情况。高达10 ppm的NO₂对枯草芽孢杆菌的空气传播型孢子没有显著影响。
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