本研究目的係在利用液態被動式採樣器（LPS）針對合成皮工廠中二甲基甲醯胺（DMF）
進行暴露評估研究，以探討現行法規中利用矽膠管和活性碳管採樣的方法，進而更能精準評估
勞工暴露濃度。同時並探討DMF環境測定。在進行DMF的暴露濃度測定時，於作業現場中以
LPS、主動式採樣器（矽膠管、活性碳管）、衝擊瓶、和臂章式採樣器3M 3500等五種採樣方
式，同時進行平行採樣並分析，來探討之間的相關性，以評估用LPS採集DMF的可行性。
其結果顯示臂章式採樣器3M 3500最差，其次為活性碳管。高濕度下LPS、矽膠管、活性
碳管和衝擊瓶之相關係數皆在0A75以上。但在低濕度下LPS與矽膠管之相關係數0A81，濃度大
致相同，而活性碳管與各採樣器之關係皆不佳。衝擊瓶為較佳採樣方法，但具有不便性；LPS
具有輕巧、便利、使用簡單、可重複使用及變異性小等優點，雖然高濕度下因擴散關係會受影
響。故LPS對於二甲基甲醯胺不失為一種可行方法的採樣方法。

The purpose of this study is to conduct N,N-dimethylformamide (DMF) exposure assessment in polyurethane (PU) synthetic leather plants by using the liquid passive sampler (LPS), examine current sampling methods that use the silica gel tube and activated carbon tube, and, in turn, determine more accurately the level of DMF concentration to which workers are exposedA The study will also explore the detection of DMF in the environment. Detection of DMF exposure concentration involved using
five different sampling methods on the factory site, namely, LPS, active samplers (silica gel tube, activated carbon tube), impinger, and badge sampler 3M 3500A Parallel sampling and analysis were undertaken to examine their correlations so as to assess the feasibility of using the LPS for collecting DMFA Results showed that the badge sampler 3M 3500 had the worst performance, followed by the activated carbon tubeA Under high humidity, the correlation coefficients of the LPS, silica gel and activated carbon tubes and impinger were all above 0A75A However, under low humidity, the correlation coefficients of the LPS and silica gel tube were both 0A81, yielding similar concentrations. The activated carbon tube had a poor correlation with other samplers. The impinger was the better sampling method but inconvenient to use. The LPS has the advantages of being lightweight, convenient, easy to use, reusable, and with minimal variability, although under high humidity performance will be affected as a result of diffusion. In conclusion, the LPS is shown to be a viable sampling method for DMFA.