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Ministry of Environmental Protection issues five new standards for pollutant discharge and measurement methods
In order to implement the State Council ’s “Air Pollution Prevention and Control Action Plan” and “Water Pollution Prevention and Control Action Plan”, and through the formulation and revision of key industry emission standards, the “industrial” industrial transformation and upgrading, the Ministry of Environmental Protection and the AQSIQ have formulated the Emission Limits and Measurement Methods of Air Pollutants (China Phase I and II) (GB 15097-2016), Emission Limits and Measurement Methods of Motorcycle Pollutants (China Phase IV) (GB 14622-2016), "Limits and Measurement Methods for Pollutant Emissions from Mopeds (China Phase IV)" (GB 18176 —2016), "Requirements and Measurement Methods for Pollutant Emission Control for Light-Duty Hybrid Electric Vehicles" (GB 19755-2016) and "Caustic Soda , Polyvinyl Chloride Industry Pollutant Emission Standard (GB 15581-2016) and other five national pollutant emission standards.
Zou Shoumin, director of the Department of Science and Technology Standards of the Ministry of Environmental Protection, said that the implementation of these five standards can significantly reduce particulate matter (PM), nitrogen oxides (NOx), and sulfur dioxide (SO2) pollution, effectively promoting industry technological progress and environmental quality improvement.
Zou Shoumin said that China is a country with relatively rich inland navigation resources. The environmental pollution caused by ship transportation is becoming increasingly prominent, especially in port cities and cities along rivers. In view of the urgent situation of the prevention and control of air pollution in China's ports and ships, the Ministry of Environmental Protection has formulated ship engine emission standards, strengthened ship pollutant emission control, and filled the gaps in ship air pollutant emission standards.
The new standard is applicable to ships with a Chinese registered ship sailing or operating in China's waters (such as inland watercraft, coastal ships, river-to-sea direct ships, strait [ferry] ships and various types of fishing ships) with a rated net power greater than 37 kW and newly produced marine engines Environmental management is not applicable to ocean-going ships, and ocean-going transport ships implement the relevant provisions of international conventions. In addition, the standard also specifies the requirements for the use of fuel by ships and the emission requirements for ships and marine machinery after overhaul. After the implementation of the new standard, the pollutant emission level of ship engines will be significantly reduced. Based on the annual increase of 10 million kilowatts of new ship engines and a life cycle of 25 years, the first phase of the standard will be implemented for 3 years. During the life cycle, it will reduce NOX by about 1.4 million tons and PM by about 400,000 tons. If the second-phase standard is implemented for 3 years, ships equipped with these ships will further reduce NOX by about 1.15 million tons during their lifetime. 60,000 tons. If all inland, coastal and fishing vessels can meet the fuel requirements specified in the standard, the pollution reduction effect will be more significant.
Zou Shoumin said that the output of China's motorcycle industry has grown rapidly. As of the end of 2015, the number of motorcycles held reached 95.14 million. According to estimates, the proportion of motorcycle pollutant emissions in 2015 in the national motor vehicle emissions is: carbon monoxide (CO) accounted for 12.7%, hydrocarbons (HC) accounted for 13.5%, NOx accounted for 1.6%. Although China is a big country in the production and use of motorcycles, there is still a significant gap between the overall technical level of motorcycles and the international advanced level. In order to effectively control the pollution of motorcycles and promote the technological progress and structural optimization of related industries, the Ministry of Environmental Protection has formulated the fourth national standard for motorcycles and mopeds.
Compared with the current third-phase standard, five major revisions have been made: one is to expand the scope of application of the standard and add emission control requirements for diesel three-wheeled motorcycles; the other is to add new pollutant projects to diesel three-wheeled vehicles. Motorcycles have added new requirements for particulate matter control; the third is to further tighten the pollutant limit; the fourth is to further improve the durability requirements for emission control; the fifth is to propose more comprehensive environmental management and technical requirements.
Zou Shoumin said that starting from July 1, 2019, all newly sold and registered motorcycles and mopeds should meet the new standard requirements. It is estimated that the implementation of the National IV standard for 3 years will reduce the total CO emissions, HC emissions by approximately 2 million tons, and NOx emissions by approximately 300,000 tons over the entire service life of the newly produced motorcycles during the entire service life. .
Zou Shoumin said that in recent years, the country has actively encouraged the development of energy-saving and new energy vehicles including hybrid electric vehicles. With the continuous development and maturity of technology, the production and sales of hybrid electric vehicles in China have increased significantly since 2014, and With the continuous upgrade of China's automobile fuel consumption and emission standards, the production and sales of such vehicles will continue to increase. Because of the assistance of electric energy, the measurement methods of traditional vehicles cannot accurately evaluate the pollutant emission status of hybrid electric vehicles, so special methods of pollutant emission measurement need to be formulated.
The new standard is an amendment to the "Measurement Methods for Pollutant Emissions from Light Hybrid Electric Vehicles" (GB / T19755-2005), which specifies the pollution control requirements and measurement methods for light hybrid electric vehicles. Specific pollutant control items and emission limits It is required to implement the requirements of the corresponding phases of light vehicle emission standards (GB 18352.3-2005 and GB 18352.5-2013). GB / T 19755-2005 is only applicable to the second-stage light hybrid electric vehicles. The new standard is applicable to the environmental protection management of the fourth-stage and fifth-stage light hybrid electric vehicles. The implementation of this measurement method standard will not bring additional vehicle technology upgrade costs.
Zou Shoumin pointed out that in recent years, the scale of China's caustic soda and polyvinyl chloride enterprises has grown continuously, and it has become the largest producer of caustic soda and polyvinyl chloride. The industry not only emits conventional environmental pollutants, but also toxic and harmful pollutants such as heavy metals, which endangers human health and environmental safety. The polyvinyl chloride industry is a mercury-related industry under the key control of the Minamata Convention. The industry consumes about 850 tons of mercury per year, accounting for about 85% of domestic consumption and 51% of global consumption.
The formulation of the new standard takes into account factors such as the current status of domestic industry production and emission control, the development of production processes and pollutant emission control technology, and the economic cost of meeting standards. It has increased the requirements for air pollutant emission control and adjusted water pollutant emission control projects. , Tightened the water pollutant discharge control requirements, and canceled the regulations for the hierarchical management of sewage destinations. After the implementation of the new standard, the estimated chemical oxygen demand (CODCr), five-day biochemical oxygen demand (BOD5), total mercury, and vinyl chloride emissions from waste water will be reduced by 77%, 67%, 67%, and 87%. Emissions of exhaust particulate matter, vinyl chloride, and non-methane total hydrocarbons have been reduced by 51%, 72%, and 58% respectively compared with the implementation of current standards.