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In view of the structural, structural and compound characteristics of air pollution prevention and control, Tianjin has not relaxed its goal of comprehensively reaching the air quality standard, focused on the implementation of pollution reduction, successively implemented the clean air action and the three-year action to win the blue sky defense war, implemented the comprehensive tackling of dust in spring, ozone in summer and autumn and winter by season, made long-term contributions, took multiple measures at the same time, and comprehensively and deeply carried out the prevention and control of air pollution.
At the same time, 22000 "scattered pollution" enterprises were classified and renovated, and the "Park siege" and "steel siege" were cracked. 314 industrial parks were classified and renovated. Three of the seven iron and steel enterprises were shut down and withdrawn, and four were retained to complete ultra-low emission treatment. The total coal consumption was reduced to 37.5 million tons, 1.23 million rural residents achieved clean heating in winter, 11000 coal-fired boilers were eliminated, and all public and self provided coal-fired power units reached the gas emission level, so as to realize clean and efficient utilization of coal Tianjin Port Co.Ltd(600717) build a green port, and vigorously promote the "public to railway" and "scattered to centralized". In 2021, the proportion of Tianjin Port Co.Ltd(600717) iron ore railway transportation will increase from 25.4% in 2016 to 65.02%, and promote the full coverage of shore power for ships in port.
Tianjin continues to optimize the performance grading system of heavy pollution, and 164 leading enterprises with performance levels a and B can reduce emissions or reduce the proportion of production suspension and restriction during heavy pollution emergency; More than 1600 people's livelihood security, national strategic emerging enterprises and national and municipal key people's livelihood projects will be included in the scope of security, so as to minimize the impact on high-quality enterprises and make every effort to ensure the smooth operation of economy and society. Highlight scientific and technological pollution control supervision means, and make full use of intelligent environmental protection big data systems such as online monitoring, working condition power consumption, power consumption analysis, fire point monitoring and heavy diesel truck driving information to continuously improve the ability and level of environmental governance.
Through the above measures, the city's pm2.2 in 2021 5. The average annual concentration is 39 μ g / m3, which is the first time to enter the "post-30" stage, with a cumulative decrease of 43.5% compared with 2016. The other five major pollutants PM10, sulfur dioxide, nitrogen dioxide, ozone and carbon monoxide all meet the standard for the first time; The number of days with excellent air quality reached 72.3%, accounting for more than 70% for the first time; Heavy pollution lasted for 7 days, which was controlled in single digits for the first time.
During the "14th five year plan" period, relying on the "1 + 3 + 8" task system, Tianjin will continue to fight the blue sky defense war, and simultaneously fight four key battles: heavily polluted weather, ozone pollution prevention and control, diesel truck pollution control, and people's concern for prominent environmental problems. It will further promote the in-depth governance of key industries such as steel, cement and coking, deepen the regulation of industrial parks and industrial clusters, strengthen the comprehensive governance of VOCs in the whole process and all links, promote the elimination of old cars, strengthen the management of off-road mobile machinery, improve the performance classification system, and coordinate economic and social development, epidemic prevention and control, livelihood security and continuous improvement of air quality. (Jinyun news reporter Dong Lijing)
