Dust and sand is polluted for 13 times in more than 3 months in Beijing

Dust and sand is polluted for 13 times in more than 3 months in Beijing
According to the report of Beijing (Xinhua) the 13th April (reporter Zhang MiaoMiao) Beijing will have already encountered outside dust and sand 10 times in 2010, office ground blowing sand 3 times, than many office ground blowing sand of once of statistics of last year. Beijing the intersection of environmental protection and the intersection of monitoring center and Deputy Director Yue Zhao say, can affirm dust and sand to pollute impact on air quality now already for last year 2010 13.
Zhao Yue says, though the gaseous pollutant totality of Beijing is a downward trend, the primary pollutant particle pollution is threatening the completion of the annual air quality goal in Beijing, the situation is very severe.
Zhao Yue says, in the first quarter of this year, the overall level of the air quality in Beijing is good, up to standard to lead increasing degree to exceed 20% compared with average level in the first quarter of the past 10 years, the ones that are second only to 81.1% for first quarter of last year up to standard lead. But the earth's surface unfreeze since the beginning of spring, strong cold the intersection of air and activity, result in, form on the intersection of desert and the intersection of Mongolian and cyclone of area it moves to be frequent to input dust and sand into Beijing in the course in the easting. In addition, the vegetation coverage rate of cold spell in spring is relatively low, the constructing amount rises gradually, it is very apt to cause the office ground blowing sand.
According to the introduction of Zhao Yue, in first quarter of this year, outside dust and sand weather 7 times appears in Beijing, affect air quality for 9 days adversely, until second-class until to increase 4 last year, influence days to increase by 6 days. It is very obvious that the dust and sand in March influences even more, through calculating tentatively, the dust and sand makes the monthly density of inhalable particles of March improve by 30% to 35%, it was about 5 times of the same period last year.
The 1 - 12 of April, floating dust 3 times has appeared again in the capital, dust and sand weather 2 times. "At 11 o'clock to 15 o'clock on the 12th, with gales about 4 grades, the density hour of the inhalable particles in the whole city jumps and rises to 300 micrograms per cubic meter from 20 micrograms per cubic meter, the blowing sand causes for some areas hour in the office the density exceed 600 micrograms per cubic meter. " Yue Zhao say, it means Beijing here person who drop local dust pollution that problem form very serious too because of the intersection of building site and the intersection of dregs and cover tightly, road.
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