Effectiveness of SOx, NOx, and Primary Particulate Matter Control Strategies in the Improvement of Ambient PM Concentration in Taiwan

The Community Multiscale Air Quality (CMAQ) measurement was employed for evaluating the effectiveness of fine particulate matter control strategies in Taiwan. There are three scenarios as follows: (I) 2014 baseline year emission, (II) 2020 emissions reduced via Clean Act (CAA), and (III) other stringently Act. Based on Taiwan Emission Data System (TEDs) 8.1, established 2014, emission 2.5 (PM2.5) 73.5 thousand tons y?1, that SOx 121.3 NOx 404.4 y?1 CMAQ model simulation indicated PM2.5 concentration 21.9 ?g m?3. This could be underestimated by 24% comparison with data from ambient air quality monitoring stations Environmental Protection Administration (TEPA). results showed high concentrations central southwestern Taiwan, especially Taichung Kaohsiung. Compared to scenario I, average annual II III reductions 20.1% 28.8%, respectively. From derived simulation, it can seen may improve daily airborne significantly directly emitted each month. Nevertheless, reveal preliminary plan not achievethe standard. Therefore, efficacy measures must considered better reduce future.