This standard is formulated in a bid to implement laws and regulations including the Environmental Protection Law of the People’s Republic of China, the Law of the People’s Republic of China on the Prevention and Control of Water Pollution and the Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution, protect the environment, prevent pollution and promote the technological advancement and sustainable development for petroleum chemistry industry. The standard stipulates the ceiling value for the discharge of water and air pollutants and requirements on monitoring and supervision of petroleum chemistry enterprises and their production facilities. The discharge of odor pollutants and environmental noise by petroleum chemistry enterprises shall observe corresponding applicable national pollution discharge standards, and the identification, treatment and disposal of solid wastes hence generated shall observe applicable national standards on solid waste pollution control. The supporting power boiler shall exercise the Emission standard of air pollutants for boiler or Emission standard of air pollutants for thermal power plants. This standard is issued for the first time.

Emission standard of pollutants for petroleum chemistry industry（GB 31571-2015）