There are currently 8 plants with 22 flue pipes in Yilan County that are required by the Environmental Protection Administration (EPA) to install CEMS to monitor the stationary pollution sources they produce. In terms of the manufacturing process, these plants involve cement manufacturing, boiler power generation, and incineration of general industrial waste. Emissions produced by the above flue pipes account for more than 80% of the emissions of stationary pollution sources produced in Yunlin County; therefore, it is important to obtain accurate monitoring data of these pipes. The project focused on maintaining the CEMS of the Environmental Protection Bureau (EPB), monitoring electric potentials and data quality of pollutant monitoring facilities to ensure data rationality and accuracy, as well as offering continuous assistance to help public and private premises producing the designated stationary pollution sources complete connection of their CEMS to the local competent authority. To enhance the reliability and availability of the monitoring data and to conduct the quality assurance system of monitoring facilities and the audit projects of monitoring facilities, 21 pipes for their CEMS function and monitoring data inspections of have been completed this year. Additionally, the project has also categorized certain common errors, such as file management, data management, hardware installation and maintenance. The errors mentioned above have been compiled and provided to the EPB who will issue to factories asking for their explanation and the deadline for improvement. Moreover, inspections are also conducted on the electronic potentials of 17 pipes, RATA monitoring check of 28 pipes and RATA auditing spot check (full process supervision) of 8 pipes, and cylinder gas audits (CGA) instead of the quarterly RATA inspection of 4 pipes, whereby the possibility of data fabrication can be eliminated. About the assurance of monitoring data’s accuracy and availability, the project has also compared the monitoring data against those of air pollution control fees reported by responsible enterprises to ensure the proper and fair collection of the fees. About the availability and efficiency of CEMS connection in factories, the uploading rate is 100% except Taiwan Cement due to its force majeure and Dong Hong Jing Incineration Plant due to its fire disaster shutdown. The project has also chosen P301 from Hsing Ta Cement for analytical review trials. Through the daily reported data of on-site operation in public/private areas and the CEMS monitoring data comparison, the parameters which are closely related to the causes of emission density and emission quantity are chosen from the daily reported data. The preliminary result indicates a correlation between NOx monitoring values and the ratio of cement clinker to coal.

CEMS