First, the air quality yesterday
On June 4, 2022, the AQI was 188, and the category was moderate pollution. Daily average value of PM2.5 14 1 μ g/m3, annual average value 106 μ g/m3, ranking 14 in the whole city and10 in the whole province; The daily average value of PM 10 is 172 μ g/m3, and the annual average value is 140 μ g/m3, ranking 14 in the whole city and 103 in the whole province. The pollution days are 4 days, and the excellent days rank 13 in the whole city, ranking 95th in the whole province. The 8-hour moving average maximum value of ozone is 40 μ g/m3.
(Note: The above data are subject to the audit of provincial stations)
Second, today's air quality forecast
Today, the weather changed from light rain to cloudy, with a temperature of 4℃~9℃ and a humidity of 83%~98% (forecast by the Central Meteorological Observatory). The dominant wind direction is the north wind, with a wind speed of 0~3.3m/s, and the diffusion conditions are poor, which still has a transmission impact on Northeast China. The air quality pollution level is light pollution, with AQI between 1 13~ 148. The primary pollutant is PM2.5 in the morning, and the concentration of particulate matter shows a downward trend due to rainfall erosion. If you keep good today, the average hourly concentration of PM2.5 will be controlled below 53.6 μ g/m3, and the pressure of keeping good will be great.
(Note: the forecast is uncertain, and the specific situation needs to be further tracked and judged)
Third, control suggestions.
Last night, heavy pollution in Anhui Province (Anqing City) continued to affect the air quality in our county (Hukou). Jiujiang issued a yellow emergency response notice for polluted weather on 4th 12. Today, it needs to be controlled according to the yellow warning emission reduction measures. Specific measures are as follows:
(A) the control of industrial enterprises
1, key industrial enterprises should implement emission reduction measures according to the emergency emission reduction list:
(1) Iron and Steel of Jiujiang Pinggang: More than 50% of the sintering machine and pelletizing equipment stopped production, mainly production lines; The lime kiln stopped production.
(2) Jiangxi Da Lian Jinshawan Metallurgical Co., Ltd.: Pelletizing equipment stopped production; The lime kiln stopped production.
(3) Jiujiang Xiang Ying Mining Co., Ltd.: Stop production.
(4) Jiangxi Copper-Lead-Zinc Metal Co., Ltd.: The production limit is 30%.
(5) Shenhua Guohua Jiujiang Power Generation Co., Ltd.: According to the actual situation, take emission reduction measures independently.
2. Brick kilns, cement grinding stations, concrete production, open-pit mining and other industries stopped production.
3, the use of solvent-based coatings, ink industrial coatings, electrophoretic drying, furniture manufacturing, packaging and printing industries involved in the production of volatile organic compounds.
Strengthen the investigation of industrial parks, focus on the operation of pollution control facilities of enterprises' emergency emission reduction and waste gas emission key enterprises, and require enterprises and units that fail to meet the standards and fail to implement emission reduction measures according to emergency emission reduction requirements to immediately rectify and ensure the effective implementation of emergency emission reduction measures.
(2) Motor vehicle emission reduction measures
1. Stop using non-road mobile machinery below the national level (except clean energy and emergency maintenance machinery);
2. Stop using heavy trucks for transportation (except special vehicles and dangerous chemicals vehicles). );
(3) dust pollution prevention and control measures
1. Strengthen dust management in construction sites, exposed ground, yards, roads and other places, prohibit concrete mixing, building demolition, muck truck transportation and earthwork operations, increase the frequency of sprinkling water on construction sites and reduce dust;
2. Increase the frequency of sprinkling water on the construction site, reduce dust, increase the frequency of road cleaning and reduce traffic dust pollution;
(4) Other emission reduction measures
1, increase the frequency of law enforcement inspection of key air pollution sources such as coal-fired boilers, construction sites, motor vehicle emissions and industrial enterprises. To ensure that its air pollutants meet the standards;
2. It is forbidden to set off fireworks, barbecue in the open air, and burn garbage and straw in the open air;
3. The catering units that fail to install fume purification facilities as required and whose emissions are not up to standard shall be closed;
4. Ships use clean energy such as liquefied natural gas (LNG) and give priority to shore power when berthing;
5. Take feasible meteorological intervention measures according to meteorological conditions.