Odor management in Thailand
In 2005, Ministry of Industry established “Ministerial Regulation regarding Standard and Measurement Method of Odor Emission from factory B.E. 2548 (2005)” under Factory Act, B.E. 2535 (1992). The ministerial regulation set the odor standard as follows;
Odor standard
| Location of the factory | Odor concentration standard value at the factory’s boundary line or inside the factory’s area | Odor concentration standard value at the stack |
|---|---|---|
| Industrial Zone | 30 | 1,000 |
| Residential Area Zone | 15 | 300 |
Measurement of odor concentration shall be conducted by taking an odorous sample at a point where it is about 1 meter away from the factory’s boundary line and is located downwind. Testing method specified by the American Society for Testing and Materials
(ASTM) or the Japanese Industrial Standards (JIS), or other methods designated in the
Royal Gazette by the minister shall be applied. The regulation has been enforced to the factory specified in the list attached, which includes food and beverage related industries, animal feeds industry, tobacco industry, leather industry and fertilizer and pesticide industry.
Ministry of Natural Resources and Environment (MNRE) has also promulgated notifications in 2009 which prescribes same requirements under Enhancement and Conservation of National Environmental Quality Act, B.E. 2535 (1992). In addition, MNRE established new odor standard for rubber industry in 2019.
Noise management in Thailand
Environmental standard for noise has been established under Enhancement and Conservation of National Environmental Quality Act, B.E. 2535 (1992).
Regarding to stationary source, Ministerial Regulation No. 2 B.E. 2535 (1992) Issued pursuant to the Factory Act B.E.2535 (1992) requires factory not to exceed noise standard prescribed by the Minister of Industry. Noise standard emitted from factory operation is set by “Notification of Ministry of Industry: Noise standard generated from factory operation B.E. 2548 (2005)” as follows;
- Noise exposure level from factory operation shall not exceed 10 decibel A.
- 24-hour average sound level from factory operation shall not exceed 70 decibel A.
- Maximum noise level from factory operation shall not exceed 115 decibel A.
Public Health Act, B.E. 2535 (1992) regulates stationary sources of business detrimental to health. Operator of business detrimental to health shall not exceed noise level of 10 decibel A.
