Which areas have become key areas for pollution prevention and control?

The overall idea of ??the "Three-Year Action Plan" is to highlight four key points, optimize four major structures, strengthen four supports, and achieve four obvious goals. In the field of work, four key points are highlighted. The Beijing-Tianjin-Hebei region and surrounding areas, the Yangtze River Delta, Fenwei Plain and other areas with the most serious air pollution are selected as key areas, with Beijing being the top priority; PM2.5, which is the most concerned by the people and has the most serious exceedance, is used as the key indicator; The key periods are autumn and winter when heavy pollution weather occurs most frequently; the treatment of air pollution sources such as industry, bulk coal, diesel trucks, and dust is the key area.

In terms of task measures, optimize the four major structures. Vigorously adjust and optimize the industrial structure, energy structure, transportation structure and land use structure, effectively respond to heavily polluted weather, protect while developing, develop while protecting, and accelerate the formation of a spatial pattern, industrial structure, production methods, and lifestyle that conserve resources and protect the ecological environment. Way. In terms of institutional guarantees, four supports will be strengthened. Strengthen regional joint prevention and control, law enforcement supervision, technological innovation, publicity and guidance, mobilize all social forces, prevent and treat the epidemic in groups, and win the battle to protect the blue sky. In terms of implementation effects, four obvious results have been achieved. Further significantly reduce PM2.5 concentration, significantly reduce the number of heavily polluted days, significantly improve the quality of the atmospheric environment, and significantly enhance people's sense of happiness with blue skies.

Currently, the Beijing-Tianjin-Hebei region and surrounding areas, the Fenwei Plain, and the northwest of the Yangtze River Delta are areas with relatively high PM2.5 concentrations in my country. In the past five years, the PM2.5 concentration in the Beijing-Tianjin-Hebei and surrounding areas has improved significantly, but it is still the region with the highest average concentration in the country. The average annual PM2.5 concentration in the 11 cities in the Fenwei Plain is 65 micrograms/cubic meter, second only to the "2 26" cities in the Beijing-Tianjin-Hebei air pollution transmission channel. It is also the region with the highest sulfur dioxide concentration in the country. Coal plays the largest role in energy consumption. Accounting for nearly 90%, the industrial structure is too heavy, the scale is small, and the equipment level is low. Most steel and coking companies have not yet achieved stable emission standards. Although the air quality in the Yangtze River Delta region is relatively good, the proportion of good days is 71.6, which is far lower than the national average. The regional pollution level is unbalanced. The concentration levels of many cities in the northwest are close to some cities in the Beijing-Tianjin-Hebei region.