火灾烟气中有毒气体的体积分数分布与危害

研究火灾烟气的成分与其体积分数分布是火灾科学的一项重要内容。为了更好地研究建筑火灾烟气的释放过程并为建筑材料评价提供依据，采用文献综述的方法论述了建筑火灾烟气的主要有毒成分、体积分数范围(即浓度范围)与危险含量(即危险浓度)，还介绍了常用的烟气分析方法，说明了对火灾烟气的产生机理和火灾烟气成分的检测方法等还需要进行深入的研究。

Concentration distribution and hazard of toxic gases in fire smoke

To probe the components and volume fraction of the toxic gases is an important area in fire science. For the sake of studying the releasing mechanism of smoke from building fire and evaluating fireproof performance of building materials, the main toxic components, concentration range of fire smoke yielded from building materials and dangerous critical concentration of some components are discussed in this paper by referencing a lot of recent literatures and information. And some usual analyzing methods for detecting the fire smoke are recommended as well. It can be found that the research on yield mechanism of fire smoke and detecting methods of fire smoke com- ponents needs to be carried out further with an effort.