2014年7月17日星期四

Beijing in the first half of the PM2.5 concentration of 11.2% and 25 air pollution air pollution in

in new network Beijing on 10 July, (reporter Yin Li) Beijing City Environmental Protection Bureau 10 bulletin said, the first half of 2014, the atmospheric concentration of major pollutants in Beijing declined, continued to improve air quality. Among them, the average concentration of PM2.5 was 91.6 micrograms / cubic meters, down 11.2% yoy. The first half of the year, Beijing a total of 25 heavy air pollution days, 15 days less Cheap Tigers Jerseys than the same period last year.

data shows, the first half of 2014, all districts and counties of Beijing air quality in general than the same period last year has improved, the concentration of PM2.5 decreased compared to the same period most districts, falling in the range of 5%-15%. The main pollutants in the atmosphere, the average concentration of PM2.5 in the city of Beijing is 91.6 micrograms / cubic meters, down 11.2% year-on-year; inhalable particulate matter (PM10), sulfur dioxide (SO2) and nitrogen dioxide (NO2) drop respectively compared to the same Cheap Marlins Jerseys period 1.3%, 16.4% and 4%.

The air quality situation of

in the first half of the year, environmental experts said, meteorological conditions causing the air quality fluctuation, a quarter of the overall weather conditions not conducive to the spread of pollutants, especially in late February had a wide range of air a week of heavy pollution Cheap Expos Jerseys in Beijing, raised the average concentration of PM2.5.

after entering the two quarter, is conducive to the spread of pollutants of the north wind frequency increase, increased rainfall, meteorological conditions become conducive to the spread of pollutants. The best level in May June, the concentration of PM2.5 reached the same period in history, in an average of Cheap Reds Jerseys 60 micrograms / cubic meters; concentration of sulfur dioxide, nitrogen dioxide and other pollutants is also showing a marked decline trend.

at the same Cheap Astros Jerseys time, this year the outside dust are more frequent and local dust effect, the first half of the PM10 to improve the trend is slow.

The

report says, Beijing continues to promote clean air action plan and joint regional air pollution control, protection of the air quality continues to improve. 5400 steam tons of coal-fired boiler clean energy transformation task, nearly 4000 tons of steam began to implement the transformation; replacement of old motor vehicle about 170000 vehicles, strict management vehicles in Beijing use policy; promoting the adjustment of 300 polluting enterprises to exit; improve the sulfur dioxide and nitrogen oxides pollution charge standard 15 times; plain afforestation task 330000 acres, the atmospheric pollution prevention and mitigation benefits are constantly release.

The latest

Beijing PM2.5 source apportionment results show, the impact on Beijing's PM2.5 area around the 28%-36%. Since this year, Beijing and the surrounding areas to actively promote joint prevention and control of atmospheric pollution. According to the analysis of the air quality report China environmental monitoring station, Beijing Tianjin Hebei 13 city in the year 1 to May the average concentration of PM2.5 was higher than that of Beijing, but the concentration difference compared with the same period last year reduced. With the regional air quality improvement, affect the surrounding pollution transport of Beijing have eased, and promotes the decrease of PM2.5 concentration.

(end)

(original >

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