Investigation on Indoor Air Quality and Air Cleaner Testing in Taiwan District

This study investigated the current status of indoor air quality (IAQ) in Taiwan district and examined the performance of market available air cleaners. Field measurements of indoor air quality at residential homes, office buildings, and public areas were conducted in four major metropolitan cities in Taiwan, including Taipei, Taichung, Tainan, and Kaohsiung. Portable IAQ monitors and detectors generally situated at the breathing height in the geometrical center of indoor environments were applied for the measurement of CO, SO2, NO/NOx, PM10, radon (Rn), and VOCs (i.e. benzene, toluene, ethylene, xylene, formaldehyde, and etc.). Field measurements indicated that Taipei demonstrated the worse, Kaohsiung and Taichung ranked the second, and Tainan had the best indoor air quality in Taiwan’s metropolitan cities. Locations that were close to main traffic streets and/or nearby industrial areas generally demonstrated relatively worse indoor air quality than their neighboring environments. In this study, a questionnaire was also undertaken for general publics in order to clarify the living styles of citizen. The results showed that, on average, people living in urban areas spent approximately 92% of their lifetime in indoor environments such as homes, working places, restaurants, automobiles, entertainment facilities, and etc. Moreover, in order to further understand the performance of consumer preferable air cleaners, ten of them randomly purchased from the market were examined in

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