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, 2016 to Oct.31, 2018. 　　There had been 2430 samples should be accomplished. In the end, 2342 samples were available, and the rate of total completion was 96.4 %.

fine particulate matters, air quality monitoring, ambient air quality monitoring stations