Due to the recent aggravation of haze around Beijing, Tianjin and Hebei, the Ministry of Ecological Environment informed the media that from November 23 to 26, a regional heavy pollution weather process will occur in Beijing, Tianjin and Hebei and its surrounding areas, including the central and southern parts of Beijing, Tianjin and Hebei, southeastern Shanxi, central and Western Shandong and Northern Henan. The Ministry of Ecological Environment has sent letters to the people's governments of Beijing, Tianjin, Hebei, Shanxi, Shandong and Henan provinces to inform them of air quality forecast and forecast information. It is required that all localities, in accordance with the actual situation and the requirements of regional emergency linkage, promptly start the corresponding level of early warning, effectively implement various emission reduction measures, mitigate the impact of heavily polluted weather, and maximize the protection of the health of the people.

95 Affected by the accumulation of local pollution and the transmission of pollution in the surrounding areas, a moderate and severe pollution process will take place in our city. It is expected that the diffusive conditions will gradually improve and the air quality will gradually improve from the night of 26 th. According to the Beijing Air Heavy Pollution Emergency Plan (revised in 2018), the Office of the Municipal Air Heavy Pollution Emergency Command issued a yellow warning of air heavy pollution. The yellow warning measures were launched at 12:00 on November 24, 2018.

According to the letter of the Ministry of Ecology and Environment (2018) 1358 on dealing with heavy polluted weather in the near future, as well as the forecast products and meteorological diffusion conditions of Shanxi Province, after consultation and judgement by experts, our city is controlled by southerly wind and inversion temperature, and pollution in northern Henan, central and southern Beijing, Tianjin and Hebei may spread to our city. A moderate to severe pollution process will occur from 23 to 26. With the approval of the Municipal Heavily Polluted Weather Emergency Command, the orange early warning was launched and the emergency response measures for orange early warning were implemented from 20:00 on November 22.

City Heavy Pollution Weather Emergency Command requires that all counties (districts) and relevant units strictly implement orange early warning emergency emission reduction measures. In addition to urban operation guarantee vehicles and special vehicles for mission implementation, heavy trucks fueled with diesel oil and non-road construction machinery are stopped in urban built-up areas (counties, development zones); in accordance with the "one plant and one policy", measures such as stopping and limiting production, limiting emissions and improving the operation efficiency of pollution facilities are adopted to achieve emergency emission reduction. Standard; Enterprises with large consumption of raw materials such as coking, non-ferrous, cement and chemical industry shall stop the transportation of raw materials by motor vehicles; in the built-up area, all earthwork operations in construction, road construction and demolition construction shall be stopped, and heavy vehicles such as construction waste and dregs transport vehicles (except environmental protection projects), concrete tank cars, sand and gravel transport vehicles shall be stopped. In transportation operations, vehicles using new energy and natural gas are excluded from fully enclosed transport vehicles; all bulk materials stacked in the open air in all enterprises are covered, and outdoor spraying, painting, cutting and slope protection grouting operations are stopped; fireworks and firecrackers are prohibited throughout the city area for a full period of time, and coal burning is strictly prohibited.

Up to now, 8 cities such as Shijiazhuang in the south-central part of Hebei Province, 13 cities such as Yangquan in Shanxi Province, Jinan in the west-central part of Shandong Province, and 7 cities such as Zhengzhou in the north of Henan Province have issued orange warning of heavy air pollution, while Beijing and Tianjin have issued yellow warning.

At this time of the past year, the plant start-up rate of major enterprises has begun to rise gradually, and the production of fertilizer reserves has begun one after another, but this year the plant start-up rate is still declining. Although it has reached the end of November, there is no sign of a recovery in the start of construction. The fertilizer industry is greatly affected by environmental protection.