Practical Implications The method applied here - based on diffusive sampling of 3-ethenylpyridine - proved adequate even at low environmental tobacco smoke (ETS) levels.

• 实际应用：本研究应用扩散之原理针对3-乙烯基吡啶进行采样证明是恰当的，甚至是于环境香菸浓度相当低之环境中。