The report calls 1 time of still ultra new national standard in Beijing PM2.5 average annual density

The report calls 1 time of still ultra new national standard in Beijing PM2.5 average annual density
The report calls 1 time of still ultra new national standard in Beijing PM2.5 average annual density
According to the report of Beijing (Xinhua) the 7th January Beijing Municipal Environmental Protection Agency releases news and claims at night on the 6th, according to the relevant scientific research literature data of Beijing PM2.5, Beijing is while PM10 density dropped continuously from 2000 to 2010, the density of PM2.5 is reducing progressively too. According to the introduction of atmospheric division chief of management office Yu JianHua of Municipal Environmental Protection Agency in Beijing, the conclusion that the recent department in environment protecting mode draws after putting the documents and materials in order is, Beijing PM2.5 average annual density has already been dropped to 70 to 80 micrograms per cubic meter in 2010 by 100 to 110 micrograms per cubic meter in 2000. The downward trend remains unchanged at present. But compared with new national standard issued soon, PM2.5 average annual density still exceeds standard 1 time. Environment and project president of research institute Hao JiMing of Tsing-Hua University think, it has suitable difficulty that the density of Beijing PM2.5 should reach the national standard value issued soon at present, it is estimated that the even longer time of taking 10 years can reach. As far as reporter know, mainly contain four items of pollutant in the atmosphere of Beijing at present: Sulfur dioxide, NO2, carbon monoxide and inhalable particles PM10. Among them, the first three items have been already steady and up to standard, but the average annual density of the inhalable particles PM10 has never reached the national standard, exceed standard 20% about still. The expert points out, the new national standard issued soon limits stricter to the density of PM10, it may also need several five-year-plans to manage pollution to want the task up to standard to be very arduous, need the whole society to reduce disposal of pollutants together even more.


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