生物廢水處理廠的廢水及污泥常含大量微生物,在處理過程中可能會有大量的微生物散逸於周圍空氣中。本研究係針對污泥在脫水的過程中,評估其產生的生物氣膠特性,並藉此評估安德森採樣器之採樣效能。本研究的採樣時間於89年1月,以安德森生物氣膠衝擊器進行採樣,並探討採樣時間與採樣結果的關係,採樣地點於廢水處理廠的露天脫水機。採樣發現細菌的平均濃度為2008CFU/m/sup 3/(767/4473CFU/m/sup 3/),真菌平均濃度為1328CFU/m/sup 3/(534/2712CFU/m/sup 3/),比一般室外的細菌及真菌濃度高。主要出現的真菌菌屬為Cladosporium(78%)、Fusarium(12%)及Yeast(8%)。
In this study, the sampling efficiencies of the Andersen samplers with different stages are under evaluation during the dewatering eperation in an industrial wastewater treatment plant for bacterial and fungal bioaerosols. The significant differences of CFU concentrations recovery from Andersen samplers with different stage were observed when the sampling time was 1min, where differences were not significant when sampling time was 4min.