Xi'an spend millions of purchase treat haze artifact experts say very little effect

recently had the media reports, Lanzhou City purchase of long-distance air blast sprayer, the water atomization and spray 600 meters, has its "can be effective against haze, dust and so called media". While the Xi'an City City cheap NHL Fitted Hats Gardens Bureau recently also purchase a new multifunctional dust is put into use, the "spray gun" weight 10 tons, can spray 120 meters, 70 meters high spray, spray dust effects, the media will be referred to as "governance haze artifact".

yesterday, Xi'an City staff said, large spray gun spend 100 million yuan, mainly for dust. Atmospheric governance experts said, it can reduce the concentration of particles in the air in a short period of time, but the PM2.5 is very little.

can go to eighty or ninety meters high spray

yesterday, Xi'an City City Gardens Bureau team called staff told the Beijing News reporter said, this car spray gun purchased from Guangdong an environmental protection equipment company, the bicycle price about 900000 yuan, the cost of direct funding from Xi'an City Hall, is dedicated.

The original

about buying a car, snapback hats cheap the staff said that a spray gun is mainly used to dust. The local pollution is serious, the concentration of PM2.5 is high, a lot of forty or fifty meter high building demolition will produce great dust, regular watering car sprayed only 10 meters, and the car can go eighty or ninety meters high spray, the demolition of dust under control.

"we buy this one trial operation have a look, if good will buy." He said, at present the evaluation result is good.

Far below the sprinkler water consumption of

the surname staff said, is responsible for the operation of the spray gun 4 people: two drivers and two operators, at eight thirty in the morning to 18 in the new city to run back and forth. According to the briefing, a spraying car a week consumption equivalent to regular watering car one day.

currently, the car passed the evaluation office air pollution in Xi'an City, 9 this month, the first day of trial operation, it is in the morning of the 10 test, start the fog gun after 3 to 5 minutes, the concentration cheap NFL Hats of PM10 decreased from 117 to 70, PM2.5 dropped cheap hats from 55 to 40.

"treatment of haze artifact" exaggerated

yesterday, Peking University cheap new era hats School of public health, environment and health experts Pan Xiaochuan said, that is a bit of an exaggeration of this car is the "rule of haze artifact", the treatment effect of Dust Haze, but can also, "watering after a period of time to the surrounding air purification effect." But he said, the dust effect is short-term, how long can hardly.

"Not for small particles by

." A Beijing atmospheric governance professor says. China frequent appearance of "haze", mainly refers to PM2.5 such small particles of pollutants, not HERSHEY'S meteorological conditions, may form the pollution layer near the ground, two hundred or three hundred meters, even spray, can only be in the tens of meters, at most, for large particles of dust to short-term inhibited by.

in addition, experts said, the main source of Lanzhou and Xi'an particles more >