Central Radio network, Beijing, March 21 news (reporter Du Ximeng) According to the Voice of China "News" reported that from the 15th of this month, the blue sky that lasted for more than ten days disappeared, and the gray haze weather began to control the Beijing-Tianjin-Hebei region. Monitoring data show that on March 18, the Beijing-Tianjin-Hebei region and surrounding areas, Tianjin, Shijiazhuang, Baoding, Langfang, Jincheng 5 cities average daily air quality reached heavy pollution. The hourly concentration of air quality in many cities, including Beijing, exceeded the heavy pollution level yesterday. Beijing issued a blue alert for heavy pollution yesterday.

Many people are confused about the heavy pollution process. The heating season has ended, reducing coal pollution emissions, and the spring diffusion conditions should also be significantly better than autumn and winter, why still can not escape the haze weather. The Ministry of Environmental Protection suspects that the seasonal change and the resumption of work of some "scattered and dirty" enterprises have dragged down air quality.

China Environmental Monitoring Station Environmental quality forecasting and early warning center forecaster Wang Wei introduced that from the situation of previous years, March is in the seasonal transition period, the atmospheric diffusion conditions change rapidly, 14 days later, adverse diffusion meteorological conditions take the upper hand, so the air quality in the Beijing-Tianjin-Hebei region significantly worse.

Originally expected the pollution process will continue until Thursday, but 20 parts of the Beijing-Tianjin-Hebei region appeared precipitation, briefly interrupted the heavy pollution continued process, "the past five days, Beijing-Tianjin-Hebei pollutants have been in the process of continuous accumulation, 20 days for the Beijing-Tianjin-Hebei is a relatively favorable meteorological conditions, because the air flow from the northeast, For the east and even the south may have a pollutant removal effect, including some precipitation processes, are very good. Looking at the overall atmospheric diffusion conditions from 21 to 23 days, the pollutants in Beijing will accumulate more on 22 days than on 21 days, it will be moderate pollution, and there will be heavy pollution in a short time. On the 23rd, a region of rain may cover Beijing. This process will also be very beneficial to the removal of pollutants. There will be a systematic cold air from the night of the 24th to the 25th, which will completely improve the air quality in Beijing."

Why the "warming stop" has not brought good weather, in addition to the atmospheric diffusion conditions mentioned by Wang Wei. Some of the two high industries whose production was regulated in winter have resumed work one after another. In addition, the Ministry of Environmental Protection also inspected 18 cities in the Beijing-Tianjin-Hebei region and found that since March 16, there have been illegal resumption of production of "scattered and dirty" enterprises or enterprise groups in many places.

According to the Ministry of Environmental Protection notice, Langfang City, Wen 'an County Sun Town Jitun Village, more than a dozen injection molding factories included in the county's "scattered pollution" clean-up list, but in the inspection found that has basically resumed production. Cangzhou City Haitong New energy-saving building Materials Co., Ltd. was found to be chaotic production site. In addition, some enterprises illegally discharged or improperly operated pollution control facilities. Some companies falsify online monitoring data or have chaotic management. An inspection by the Ministry of Environmental Protection found that the smoke online monitoring data of the No.3 kiln of Quzhai Cement Co., Ltd. in Luquan District of Shijiazhuang City was faked and the instrument parameters were modified without authorization. Shanxi Puxian Chaoteng Heating Co., Ltd. has no denitration facilities, and the online monitoring device is faulty. At present, the Ministry of Environmental Protection has reported the relevant problems to the local government, requiring rectification within a limited time.

Minister of Environmental Protection Chen Jining previously clear, this year will be the "scattered pollution" enterprise group for special management, in addition, China is piloting the establishment of trans-regional atmospheric environment management institutions, will further strengthen regional joint prevention and control, "pollutant discharge enterprises, local differences, the Ministry of Environmental Protection is implementing the ecological environment big data construction project, Build a management platform covering China's environmental supervision and law enforcement, environmental quality and online monitoring of key enterprises, EIA approval and management, heavy pollution weather emergency consultation and response. The application of these platforms will allow us to see the enforcement process of every law enforcement officer, the assessment content of every EIA report, and the historical legacy of every monitoring data."

Just on the 18th, the coal-fired unit of Huaneng Beijing Thermal Power Plant, the last large coal-fired power plant in Beijing, has been shut down for backup. Before that, Beijing had already shut down three other coal-fired power plants as planned. "The corresponding reduction is 91 tons of sulfur dioxide emissions, about 285 tons of nitrogen oxide emissions and about 110 tons of dust emissions," said Zhang Chungui, deputy director of the Beijing Municipal Commission of Urban Management.

China Environmental Monitoring Station Environmental Quality forecast and early warning center forecaster Wang Wei said that it is expected that after April, the frequent occurrence of smog will be significantly improved, "From the statistics, 13 years to 16 years, the proportion of good days increased significantly, especially after the heating season after the Spring Festival to autumn before. It is expected that after this period of time this year, North China and Beijing-Tianjin-Hebei will have a significant increase in the number of good weather days and blue sky days."

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