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In this project, two fixed open-path Fourier transform infrared (OP-FTIR) systems were deployed: one was at the Nan-yang Primary School, the northwest side of Ren Da Industrial Park; the other was at the Chung-Yun Primary School, the southwest side of Linyuan Industrial Park. The project had accomplished 165 and 360 monitoring days during 2012 and 2013 respectively. Also, 28 chemical compounds were identified from the monitoring station in Ren Da Industrial Park, and the results showed that Dimethylformamide (DMF) was emitted from San Fang Chemical Industry Co., Ltd, vinyl acetate from USI Corporation, 1,3-butandiene from TSRC Corporation and Gold Choice Co. and ethane from USI Corporation and China Man-made Fiber Corporation mainly; meanwhile, 45 chemical compounds were found in the monitoring station of Linyuan Industrial Park, and the results indicated that key pollutants and main contribution sources contain: 1,2-dichloroethane and vinyl chloride were distributed from TVCM Co., ethylene from Linyuan Plant of LCY Chemical Corp. , Linyuan Petrochemical Plant of CPC Corporation, TVCM Co. and Asia Polymer Corporation and propane and 1,3-butandiene from Linyuan Petrochemical Plant of CPC Corporation mainly.
In addition to the primary pollutants and their sources of each area mentioned above, the project also discovered the potential sources in the up-wind side of the odor-exposed areas of two industry parks by periodical inspections, and focused on the key pollution sources; then, monitored and traced out pollutants by using two sets of mobile OP-FTIR. The total monitoring time of mobile stations for 2012 is 1,236 hours for 5 site-times; the number of monitoring time for 2013 is 2,453 hours for 16 site-times. The long-term contribution sources identified by monitoring results were required to inspect related pollution sources and file the improvement plan stipulated by Article 39 of “Volatile Organic Compound Air Pollution Control and Emission Standards”. On the other hand, the monitoring results were fed back to relevant projects of Environmental Protection Bureau Kaohsiung City Government, such as VOC Control Plan for strengthening the process equipment component inspection testing or guiding plants to reduce the quantity of pollution, Air Quality Management Project for arranging the joint inspection, or Reduction Appraisal Project for selecting the high pollution potential plants as evaluation subjects and providing professional advices with pollution reduction, etc.
The project not only pumped lots of FTIR monitoring capacity into the source tracing of pollutants but provides professional technical support through educational training, technology transfer and air quality explanation session, etc. Moreover, the project also fully cooperates with the Environmental Protection Bureau’s Emergency Response Mechanism and help Linyuan Industrial Park, Ren Da Industrial Park and Kaohsiung Refinery with emergency response and monitoring investigation so it can efficiently utilize each work capacity directly or indirectly to maintain air quality.
By way of a two-year pollution source tracking, the project had enforced the plants in Ren Da Industrial Park and Linyuan Industrial Park to complete improvements. The monitoring results of the fixed OP-FTIR station in Ren Da area indicated that Non-methane Hydrocarbon (NMHC) concentrations in 2013 were lower than in 2012; the monitoring results of the fixed OP-FTIR station in Linyuan area also showed that Non-methane Hydrocarbon (NMHC) concentrations in 2013 were slightly lower than in 2012 except for August and September in 2013 since the test run of CPC Corporation contributed massive pollution then. With respect to the analysis of pollution source improvement, the frequency exceeding the Peripheral Boundary Standards of target pollutant concentrations of San Fang Chemical Industry Co. Ltd., TSRC Corporation and China Man-made Fiber Corporation all decreased significantly but there is still room for improvement. To keep improving air quality, we suggest that there is a need to periodically track and assess their improvement progress. |