The average annual concentration of PM2.5 in Beijing, Tianjin, Hebei and surrounding areas decreased significantly compared with the same period last year.

category:Global
 The average annual concentration of PM2.5 in Beijing, Tianjin, Hebei and surrounding areas decreased significantly compared with the same period last year.


Chai Fahe introduced the study for the first time to establish a list of atmospheric pollutants emission from Beijing, Tianjin and Jizun Lu Yu. The pollutants involved include inhalable particulate matter PM10, fine particulate matter PM2.5, sulfur dioxide, nitrogen oxides, volatile organic compounds, ammonia, carbon monoxide, and other seven items, including the source of combustion, industrial sources, and movement. Seven major categories are the source, the source of dust, the source of life, the source of agriculture, and the natural plant source. Based on the establishment of emission inventory, this study analyzed the characteristics of air pollution source emission and the impact of air pollution transmission in Beijing Tianjin Hebei and surrounding areas. Although regional air quality has improved as a whole, the total amount of emissions is still large, and the situation is still grim. It is necessary for the region to jointly implement pollution reduction. In the long term, if the target of regional air quality is met, the main air pollutants should be reduced by 40%-80% on the basis of 2015 emissions. The industries with the greatest potential for emission reduction are steel, cement and petrifaction, and the forward control of steel production capacity of three places in Beijing, Tianjin and Hebei is 200 million tons. The study also suggests that the implementation of the regional control and control of atmospheric environment, the implementation of differential energy policies to reduce the total amount of coal consumption, promote regional standards and technical transformation to improve the level of control of fixed source pollution. On the basis of continuing to carry out the management and control of vehicle oil road mark, the regional traffic distribution and the construction of green transportation system are optimized. It is understood that in 2017, the average annual concentration of PM2.5 in 70 cities in seven provinces and regions in Beijing, Tianjin Hebei and its surrounding areas was 55 micrograms per cubic meter, down 11.5% from 2016 and 37.2% from 2013. The annual average concentration of PM2.5 in Beijing, Tianjin and Hebei is 64 micrograms per cubic meter, which is 9.9% lower than that in 2016, which is 39.6% lower than that in 2013. The average annual concentration of PM2.5 is three. Source: Beijing Morning Post editor in charge: Zhu Xiaodong _NBJS6126 Based on the establishment of emission inventory, this study analyzed the characteristics of air pollution source emission and the impact of air pollution transmission in Beijing Tianjin Hebei and surrounding areas. Although regional air quality has improved as a whole, the total amount of emissions is still large, and the situation is still grim. It is necessary for the region to jointly implement pollution reduction. In the long term, if the target of regional air quality is met, the main air pollutants should be reduced by 40%-80% on the basis of 2015 emissions. The industries with the greatest potential for emission reduction are steel, cement and petrifaction, and the forward control of steel production capacity of three places in Beijing, Tianjin and Hebei is 200 million tons. The study also suggests that the implementation of the regional control and control of atmospheric environment, the implementation of differential energy policies to reduce the total amount of coal consumption, promote regional standards and technical transformation to improve the level of control of fixed source pollution. On the basis of continuing to carry out the management and control of vehicle oil road mark, the regional traffic distribution and the construction of green transportation system are optimized. It is understood that in 2017, the average annual concentration of PM2.5 in 70 cities in seven provinces and regions in Beijing, Tianjin Hebei and its surrounding areas was 55 micrograms per cubic meter, down 11.5% from 2016 and 37.2% from 2013. The annual average concentration of PM2.5 in Beijing, Tianjin and Hebei is 64 micrograms per cubic meter, which is 9.9% lower than that in 2016, which is 39.6% lower than that in 2013. The average annual concentration of PM2.5 is three.