检测分析了工作环境中氟化氘(DF)化学激光器尾气中的有毒成分浓度。应用高斯烟气扩散正态方程模式，建立了实验条件下的气体扩散理论模型，计算不同风速下的尾气浓度，根据污染物的浓度时空分布，选定采样点。制定了大气中微量氟含量的采样测定方法，在激光器不同出光条件下采集不同工作区域的大气进行测定，对实验数据进行了分析，并与国家标准进行比对。结果表明，DF激光器尾气排入大气中后，有毒成分在工作环境中有一定的残留，但浓度均在允许的安全范围内。

The toxic components concentration of the exhaust gas of DF chemical laser in the working environment is analyzed. By applying the Gaussian normal equation of gas diffusion, a gas diffusion model is established under the experimental conditions to calculate the wind speed under different gas concentrations. Based on temporal and spatial distribution of the concentration of pollutants, the sampling points are selected, and the atmospheric sampling of trace fluoride method is developed. The gas under different conditions in different regions are measured. Then the experimental data are analyzed and compared with the national standard. The results show that, after the exhaust gas of DF chemical laser is expelled into the atmosphere, toxic ingredients in their working environment have some residue, but the concentration is in the security permitted range.