There are 104 factories installed at present, of which 45 are regulated for stationary sources, 34 are not regulated, 9 are temporarily suspended and 16 are in installation with a total employment of approximately 4,349.
A total of 829 factories were inspected in the Industrial District. During the inspection, abnormal or defective conditions were found 30 times, accounting for about 3.6% of the inspection, The defective rate of this year is the lowest in recent years. Most of the improvements have been completed after re-examination. However, Xingwei had a lot of occurrences, show poor management of factory operations. Have been inspected with the Environmental Protection Bureau and punish according to law.
The concentration of each pollutant is usually lower than the air quality standards or AQI 100 in the air quality monitoring of this year, compared with the neighboring air quality monitoring stations, the trend of concentration change is similar without any obvious situation of moving higher. However, Yuhkang Elementary School PM10 in the first quarter and fourth quarter and Donghai Elementary School SO2 in the third quarter and fourth quarter were higher for some time periods. According to the wind direction and concentration, the high values did not source from the Pingnan Industrial District. In addition, 2 sampling points O3 8 hours average in the first quarter and fourth quarter were higher than air quality standard for some time periods, and similar conditions at the neighboring air quality monitoring stations, which was suspected that it was caused by the air quality in southern Taiwan.
The analytical sample average of Dioxin is 0.018 pg I-TEQ/m3 (standard deviation = 0.012, excluding PCBs) of the perimeter air and sediment this year. The average concentration of total toxicity equivalency is about 0.017 pg WHO2005-TEQ/m3 (including PCBs), which is converted with WHO2005-TEF. It is quite lower than the annual average, 0.6 pg WHO2005-TEQ/m3 of Japan's ambient air quality standard. PCBs account for about 0.1%-16.5% of the total toxicity equivalency. Comparing with the monitoring results, PCBs = 1.0%-32.0% summarized by the Environmental Protection Administration in 2020 Air Quality Monitoring Stations (The Project of Stationary Sources Emission Investigation, Environmental Monitoring and Emission Reduction Promotion Plan Targeting on Dioxin and Heavy Metals), the effect of PCBs on the total toxic equivalency of Dioxin in the air is not significant this year. The concentration range of this year is similar to the concentration range of Pingtung air quality monitoring station in 2018 and 2021. The concentration of sediment samples was 0.650~3.51 ng I-TEQ/kg, which was in line with the lower limit value of "Regulaions for Classification, Management and use of Sediment Quality Indicator and Restrictions" by the Environmental Protection Administration of Executive Yuan this year. Besides that, the concentration range was similar to the Donggang River, the high concentration in the first quarter may be due to a prolonged lack of water, but the concentration has decreased significantly since the second quarter.
In the inspections part, there have been completed with 2 times of PSN implemented, 2 times of Dioxin, and 1 time of the verification of VOCs reduction rate. All tests were in compliance with the regulatory standards.
The organic function measurement of odor had been implemented 9 times, including 8 times from the gas duct and 1 time from the perimeter, 5 of them assist the odor audit inspection of the non-Pingnan Industrial Park. All tests in the Pingnan Industrial Park were in compliance with the regulatory standards, however, The test result of Der Herng Industrial is close to the emission standard and may exceed the regulatory standards, will be subject to inspection next year.
