This EPA project was aimed at air quality monitoring by mobile vans and maintain all measurements working normally. Daily zero and span checks of gas analyzers were achieved. Precision validation and flow-rate verification were executed every two weeks as well as conducting monthly meeting to approach the yearly data acquisition rates higher than 90 %. This year mobile van #1 got 92.9 %, and van #2 had 93.7 %, and van #4 took 94.0 %. The locations of routine missions included Dasi-Hongchen Company, Wuzi Incineration Plant, National Palace Museum and Kaohsiung Harbor Area. These episodes were affected by regional scale pollution, and most of all was PM10. The assigned missions were the impact of traffic pollutants such as the air quality after the opening of Xue-Shan Tunnel in Touchen area, which resulted in no impact on local air quality due to increasing traffic flux. Before tunnel opening CO was 0.51 ppm, and monitored 0.39 ppm after opening. Before operating of Kaohsiung metro, the monitored CO was 1.05 ppm, and 0.83 ppm measured in neighbor fixed-stations, which indicated that referred to neighbor fixed-stations if needed to monitor after operating. The traffic air quality mobile monitoring in five urban cities reflected that traffic emission had the remarkable impact on the CO density. Example as in Keelung CO monitored was 1.14 ppm, but 0.37 ppm measured by fixed-station. The mission of O3 transmission cases analyzed that when coastal O3 exceeding standard (138.8 ppb), and mountains area would get deteriorated (123 ppb) because of wind filed affecting. This project completed all missions as requested including maintaining vans normally operated with qualified data acquisition rates. All conclusions of this monitoring project offer not only information of the comparative data from nearby fixed-station, but also reference of related monitoring in near future.

Mobile Air Quality Monitoring Station, Ozone Transportation, Urban Air Quality