國際台北花卉博覽會展場空氣中微生物菌種與濃度分布

Profile of Airborne Microbes at the Taipei International Flora Exposition

10.6288/TJPH2012-31-03-07

陳郁婷(Yu-Ting Chen)；張靜文(Ching-Wen Chang)；洪念慈(Nien-Tzu Hung)

花卉博覽會 ； 空氣 ； 真菌 ； 細菌 ； Flora exposition ； air ； fungi ； bacteria

台灣公共衛生雜誌

31卷3期（2012 / 06 / 01）

277 - 284

繁體中文

Objectives: To investigate the concentration and distribution of airborne microbes at the Taipei International Flora Exposition. Methods: Airborne bacteria and fungi were quantified and categorized at indoor pavilions (Expo Dome and Pavilion of the Future) and outdoor locations (Floral Rainbows, Flower Landscape and Flower Base under a Tree). Results: The highest fungal concentration (394.9±326.9 cfu/m3) was found at Pavilion of the Future. This was significantly greater than that at the Expo Dome (177.6±74.6 cfu/m3) (p＜0.05). Seven percent of the samples obtained from Pavilion of the Future exceeded the level of fungi (1000 cfu/m3) suggested by the Taiwan EPA for good indoor air quality. The highest bacterial concentration was found at Flower Base under a Tree (340.3±187.6 cfu/m3), followed by the Expo Dome (299.6±171.5 cfu/m3). Bacterial concentration at the Expo Dome was significantly higher than that at Floral Rainbows (149.7±74.7 cfu/m3) (p＜0.05). Gram positive rods (67.5%~82.7%) were dominant at every site studied, followed by Gram positive cocci (7.9%~14.6%). The most identified fungi were Cladosporium (68.6%~73.7%), followed by Penicillium (41.3%~27.7%). Conclusions: Our results demonstrated no significant increase in the level of airborne microbes at the Flora Exposition. Only a few samples exceeded the level of airborne microbes suggested by the Taiwan EPA for good air quality. This finding supports the observation that airborne microbes may be efficiently controlled through proper air conditioning and environmental management.

Objectives: To investigate the concentration and distribution of airborne microbes at the Taipei International Flora Exposition. Methods: Airborne bacteria and fungi were quantified and categorized at indoor pavilions (Expo Dome and Pavilion of the Future) and outdoor locations (Floral Rainbows, Flower Landscape and Flower Base under a Tree). Results: The highest fungal concentration (394.9±326.9 cfu/m3) was found at Pavilion of the Future. This was significantly greater than that at the Expo Dome (177.6±74.6 cfu/m3) (p＜0.05). Seven percent of the samples obtained from Pavilion of the Future exceeded the level of fungi (1000 cfu/m3) suggested by the Taiwan EPA for good indoor air quality. The highest bacterial concentration was found at Flower Base under a Tree (340.3±187.6 cfu/m3), followed by the Expo Dome (299.6±171.5 cfu/m3). Bacterial concentration at the Expo Dome was significantly higher than that at Floral Rainbows (149.7±74.7 cfu/m3) (p＜0.05). Gram positive rods (67.5%~82.7%) were dominant at every site studied, followed by Gram positive cocci (7.9%~14.6%). The most identified fungi were Cladosporium (68.6%~73.7%), followed by Penicillium (41.3%~27.7%). Conclusions: Our results demonstrated no significant increase in the level of airborne microbes at the Flora Exposition. Only a few samples exceeded the level of airborne microbes suggested by the Taiwan EPA for good air quality. This finding supports the observation that airborne microbes may be efficiently controlled through proper air conditioning and environmental management.

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