We monitored the PM2.5 by manual method in ten monitoring stations in central Taiwan. These ten stations are Zhudong, Hsinchu, Miaoli , Sanyi , Zhongming , Fengyuan, Nantou , Changhua , Douliou and Kinmen. Each station has been conducted once every three days during the period of Nov.1, 2018 to Dec. 31, 2020. There had been 2440 samples should be accomplished. In the end, 2377 samples were available, 60 samples were failed , 3 samples were suspended, and the rate of total completion was 97.4 %.

PM2.5, ambient air quality monitoring stations, Central Taiwan