Taiwan released “Stationary Pollution Source Hazardous Air Pollutant Emission Standards” 
On February 26, 2021, the Taiwan Environmental Protection Administration released the “Stationary Pollution Source Hazardous Air Pollutant Emission Standards”. The standards set emission standards for a total of 22 types of hazardous air pollutants. The emission standards released this time will be enforced according to the following schedule.
- New pollution sources: July 1, 2021
- Existing pollution sources: July 1, 2021 (Stage 1), July 1, 2023 (Stage 2)
The names of the 22 hazardous air pollutants and their standard values are listed below.
- (1) represents the stage1, and (2) represents the stage 2.
- For the calculation method of Article 4, please refer to the original text from the link at the bottom.
| Pollutant name | Type of pollution source | Standard value for emission pipe | Standard value for site boundary |
|---|---|---|---|
| 1,2-Dichloroethane
(107-06-2) |
new source of pollution | Calculated by the method in Article 4. | 150ppb |
| Existing pollution sources | |||
| 1,3-Butadiene
(106-99-0) |
new source of pollution | Calculated by the method in Article 4. | 15 ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 50ppb (1)
15 ppb (2) |
|
| Ethylbenzene
(100-41-4) |
new source of pollution | Calculated by the method in Article 4. | 150ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 300ppb (1)
150 ppb (2) |
|
| xylene
(1330-20-7) |
new source of pollution | Calculated by the method in Article 4. | 150ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 300ppb (1)
150 ppb (2) |
|
| dichloromethane
(75-09-2) |
new source of pollution | Calculated by the method in Article 4. | 100ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 200ppb (1)
100ppb (2) |
|
| trichloroethylene
(79-01-6) |
new source of pollution | Calculated by the method in Article 4. | 45ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 100ppb (1)
45ppb (2) |
|
| chloroform
(67-66-3) |
new source of pollution | Calculated by the method in Article 4. | 90 ppb |
| Existing pollution sources | Calculated by the method in Article 4. | ||
| Hexavalent chromium compounds
(18540-29-9) |
new source of pollution | Calculated by the method in Article 4. | 0.025μg/m3 |
| Existing pollution sources | Calculated by the method in Article 4. | 0.5 μg/m3 (1)
0.025μg/m3 (2) |
|
| acrylonitrile
(107-13-1) |
new source of pollution | Calculated by the method in Article 4. | 27 ppb |
| Existing pollution sources | |||
| tetrachloroethylene
(127-18-4) |
new source of pollution | Calculated by the method in Article 4. | 100ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 200ppb (1)
100ppb (2) |
|
| carbon tetrachloride (CCl4)
(56-23-5) |
new source of pollution | Calculated by the method in Article 4. | 40 ppb |
| Existing pollution sources | |||
| toluene
(108-88-3) |
new source of pollution | Calculated by the method in Article 4. | 150ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 300ppb (1)
150 ppb (2) |
|
| formaldehyde
(50-00-0) |
new source of pollution | Calculated by the method in Article 4. | 60 ppb |
| Existing pollution sources | |||
| Mercury and its compounds
(7439-97-6) |
new source of pollution | Calculated by the method in Article 4. | 1μg/m3 |
| Existing pollution sources | |||
| benzene
(71-43-2) |
new source of pollution | Calculated by the method in Article 4. | 40 ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 80ppb (1)
40ppb (2) |
|
| styrene
(100-42-5) |
new source of pollution | Calculated by the method in Article 4. | 100ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 200ppb (1)
100ppb (2) |
|
| Arsenic and its compounds
(7440-38-2) |
new source of pollution | Calculated by the method in Article 4. | 0.07 μg/m3 |
| Existing pollution sources | |||
| chloroethylene
(75-01-4) |
new source of pollution | 10ppm | 20ppb |
| Existing pollution sources | Calculated by the method in Article 4. | 40ppb (1)
20ppb (2) |
|
| Beryllium and its compounds
(7440-41-7) |
new source of pollution | Calculated by the method in Article 4. | 0.04μg/m3 |
| Existing pollution sources | |||
| Lead and its compounds
(7439-92-1) |
new source of pollution | 1mg/Nm3 | 1μg/m3 |
| Existing pollution sources | |||
| Cadmium and its compounds
(7440-43-9) |
new source of pollution | 0.1mg/Nm3 | 0.17μg/m3 |
| Existing pollution sources | |||
| Nickel and its compounds
(7440-02-0) |
new source of pollution | Calculated by the method in Article 4. | 0.5 μg/m3 |
| Existing pollution sources | Calculated by the method in Article 4. | 1 μg/m3 (1)
0.5 μg/m3 (2) |
For the original text of the above standards, please refer to the following URL (in traditional Chinese).
https://gazette.nat.gov.tw/egFront/detail.do?metaid=122290&log=detailLog
