· Ministry of Environmental Protection report: Air quality improved in Beijing, Tianjin and Hebei in November
According to Xinhua News Agency yesterday, the Ministry of Environmental Protection released the air quality status of 74 cities in Beijing, Tianjin and Hebei, the Yangtze River Delta and the Pearl River Delta region in November 2014. Compared with the previous month, the proportion of the average number of days in the 74 cities decreased by 2.3 percentage points. The air quality in the Beijing-Tianjin-Hebei and Pearl River Delta regions improved, and the Yangtze River Delta region declined.
According to the person in charge of the Ministry of Environmental Protection, in November, the ratio of the average number of days in the 74 cities was 63.6%, the proportion of light pollution days was 22.2%, the moderate pollution was 8.0%, the heavy pollution was 4.6%, and the serious pollution was 1.6%. According to the urban environmental air quality comprehensive index, the top 10 cities with relatively poor air quality in November were Baoding, Xingtai, Tangshan, Shenyang, Hengshui, Harbin, Shijiazhuang, Zhengzhou, Langfang and Anhui.
The average number of air quality compliance days in 13 cities in the Beijing-Tianjin-Hebei region was 42.0%; the average over-standard days was 58.0%, of which the proportion of severely polluted days was 15.7%, and the proportion of severely polluted days was 6.7%. Among the exceeded days, the number of days with PM2.5 as the primary pollutant was the highest, followed by PM10. Compared with the same period of last year, the proportion of the average number of days in the 13 cities in the Beijing-Tianjin-Hebei region increased from 39.1% to 42.0%, an increase of 2.9 percentage points, and the proportion of days of compliance increased.
The person in charge of the Ministry of Environmental Protection introduced that the air quality during the APEC meeting in Beijing was excellent. After November 15th, the North China region entered the heating period. Due to the increase of pollutant emissions and unfavorable meteorological conditions, there were three heavy pollution processes in Beijing, four days of heavy pollution and one day of serious pollution. The pollution level was significantly higher than that of the same period of last year. Aggravation resulted in an increase in the monthly average concentration of PM2.5, PM10 and NO2.
PP PE Profile Extrusion Machine
PP PE Profile Extrusion Machine consist of twin conical screw extruder, vacuum shaping table , hauling machine and cutter,stacker,it is belong to Plastic Extruder.
Product Description:
Fetching in Europe and America advanced technology and uniting with domestic condition, our company develop this production line.
This production line is mainly used to produce PP PE profile, such as Ceiling, Deck, Floor, Cornice, Plank, Windows, Door frame and board and etc.
Feature:
1. twin-screw extruder, suitable for processing PP PE granule raw materials.
2. Changing the moulds to produce many kinds of different PP PE profiles.
3. Auxiliary machine: Crusher, pulverizer,
Pp Pe Profile Extrusion Machine,pp pe profile extrusion line,Pp Profile Extrusion Machine,Profile Extruder
zhangjiagang sevenstars machinery co.,ltd , https://www.sevenstarmachienry.com