In order to implement the "People's Republic of China Environmental Protection Law" "People's Republic of China Air Pollution Prevention and Control Law", prevention and control of ecological pollution, improve the quality of the ecological environment, standardize the determination of ambient air and exhaust gas in the odor, the development of this standard. This standard specifies the determination of ambient air and various types of malodorous pollution sources (including waters) in different forms of odor emission dynamic dilution olfactory method. This standard is issued for the first time.
The name and number of the standard are as follows.
I. Technical Requirements for Data Transmission of Automatic Pollutant Monitoring and Supervision Systems (HJ 212-2025)
II. "Determination of Ambient Air and Exhaust Gas Ozone Dynamic Dilution Olfactometry" (HJ 1416-2025)
The above standards are effective January 1, 2026
Notice is hereby given.
Ministry of Ecology and the Environment (MEP)
June 6, 2025
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