The scopes of this project include the analyses of AQI for year 2011 to 2016, the chemical analyses of water soluble ionic and organic acids of FRM samples, the establishment of fingerprint for cooking smoke and the combined control strategy for fine particle and ozone controls. The statistics of AQI show that the fractions of AQI in ranges of 0-100, 101-150, 151-200, and 201-300 are 70%~80%, 15%~20%, 4%~11%, and 0.05%~0.18%, respectively. The air pollutant causing AQI greater 200 is almost all ozone 8-hour concentration and some the diurnal variations of ozone concentrations are multiple peaks instead of the single afternoon peak ozone concentration. For AQI ranging from 101 to 150, the dominant single indicator pollutant is fine particle, followed by O3_8hr. The pair for two species to be both with AQI greater than 100 is fine particle and O3_8hr. The fractions of water soluble species in fine particle are 19%~34%, 9%~14%, and 4%~16% for sulfate, ammonium, and nitrate, respectively. The values of I are greater than 2 for most air basins and those of J are generally less than one for central, Yunchinan, and Kaoping air basins. The contributions of biomass burnings to fine particle are from 5% to 25%, based on the estimation by potassium and oxalate. The fractions of Mg2+,Ca2+,Cl-, and nss-SO42- decreases from year 2011 to 2015. The dominant chemical components in cooking smoke is organic carbon and the fraction of elemental carbon is less than 1%. For organic carbon, the order of fractions are OC3, OC2, OC4, OCpyr, and OC1; that for elemental carbon is EC1. The contributions of cooking smoke to the ambient fine particle concentration are 17.2% during noon time, followed by 10.7% at nighttime, 9.1% in the morning, and 7.9% at late night, based on the ambient measurements conducted at Tainan. For O3_8hr causing AQI greater than 100, the ozone sensitivity analyses show VOC-control at northern and southern Taiwan and NOx-control for the other regions. For fine particle exceeding the ambient air quality standard, the contributions by different sectors are in the order of heavy-duty diesel truck, utility, gasoline passenger car, and steel industry.
