The monitoring vehicle covers a total of 100 monitoring items, including 87 VOCS (appropriated by NIEA A715.15B), 7 air quality pollutants (sulfur dioxide, nitrogen oxides, nitrogen dioxide, nitrogen monoxide, carbon monoxide, ozone and particle matter), 2 odor pollutants (ammonia and total reduced sulfur), and 4 weather data (wind speed, wind direction, temperature, and humidity). During the project period, we maintain the normal operation of all instruments and equipment, conduct quality assurance and quality control operations and data reasonableness checks, and ensure that the results of quality assurance and quality control are in accordance with the relevant norms and standards. We also ensure the quality and reliability of the data. The monitoring sites were moved six times during the project period, from Dounan Yihe Mazu Temple to Central District Environmental Mailiao Team ,Emergency Response Team, Environmental Protection Administration on April 28, 2021, to the 4th Coastal Patrol 42nd Squadron on May 28, to Douliu Shiliu Junior High School on July 16, to Douliu Derlian Biotech Corp. on August 16, to Dounan Stadium, Yunlin County on November 3, to Dounan Yihe Mazu Temple on November 8. The monitoring results are summarized as follows: Yunlin Offshore Industrial Park with sulfur dioxide, propane, isopentane, benzene, styrene, 1,3-butadiene, etc. as the main species, mainly affected by Yunlin Offshore Industrial Park; Douliu Industrial Park with acetone, 2-butanone, methanol and other solvents as the main species, not a single major source; Dounan town with methanol, propane, toluene, acetone, isopentane, etc. as the main species, the main source may be the northwestern factories and mobile sources. The results of pollutant identification include fingerprint data creation review, confirmation of fingerprint matching methods, and fingerprint mapping of Yunlin Offshore Industrial Park. In addition, we received a total of 45 samples from other projects or institutions during the project period, we performed immediate analysis of volatile organic compounds by TD-GC/MS and preliminary fingerprint data was established for the Douliu Industrial Park as well.

Air Quality Monitoring, Volatile Organic Compounds (VOCₛ), Thermal Desorption-Gas Chromatography/Mass Spectrometry (TD-GC/MS)