The study for the detection of indoor bioaerosol by binarized image and turbidity measurement

• Main Authors: Jun-Shan Yang, 楊竣善
• Other Authors: Rong-Seng Chang
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/46006118522598291309

碩士 === 國立中央大學 === 光電科學與工程學系 === 101 === Due to the changes in social structure of nowadays, employees in the indoor environment for a long time. People who frequent indoor and half-open space make the indoor air worse. According to the U.S. Environmental Protection Agency study reported that indoor bioaerosol concentrations are often higher than outdoor concentrations. Recent epidemiological research has also pointed out that the degree of the bioaerosol exposure to air is related to human’s symptoms, also reflects the indoor bioaerosol concentration of an indicator of health risk factor. In addition, the report also explored the indoor bioaerosol concentration correlate with sick building syndrome. the indoor air concentration of bioaerosols has become one of the key projects that Environmental Protection Agency promote the relevant laws and regulations. In this study, Nation Central University Guo-ding photoelectric building Nano Biomedical Laboratory as sampling locations.The air microorganism of laboratory are collected by using gravity sedimentation at five laboratory locations, three periods, each period is four hours . We also cultivate three days later, we analyze the number of colonies to estimate bioaerosol concentration. By comparing the analysis to get what factors affect the difference of bioaerosol concentration. It’s in order to find the dominant influences on bioaerosol concentration. The common biological experiments methods for measuring number of colonies is direct count, but it is more difficult for the naked eye. herefore, we used binarized image analysis and turbidity measurement to improve the accuracy of bioaerosol concentration . In this system, the establishment of foundation, hoping to provide workers self-management purposes, take the necessary protective measures and disinfection operations,. And It’s contribute to the improvement of indoor air quality and control strategies.