Traditional Culture Encyclopedia - Weather forecast - Can artificial precipitation increase reduce smog?
Can artificial precipitation increase reduce smog?
The so-called artificial precipitation enhancement refers to the use of aircraft or rockets to spread dry ice, silver iodide and other catalysts into the cloud to promote precipitation or increase precipitation. "The formation of precipitation is conditional", that is, there must be suitable clouds, otherwise it is difficult for a clever woman to cook without rice.
For the mixture of fog and haze without artificial precipitation enhancement, only physical methods can be used to eliminate fog. Eliminating cold fog is to use refrigerants such as liquid nitrogen or liquid carbon dioxide to turn fog droplets into ice crystals and fall to the ground. In Beijing, Sichuan Shuangliu Airport and other places, many years of research and experiments on fog elimination in China show that it has certain effects, and the effect of eliminating cold fog is more obvious than that of eliminating warm fog. Although the cost is not high, fog elimination has not yet become the routine work of meteorological departments, and only manual fog elimination can be implemented in local areas.
In view of the foggy days in the air, due to the dry atmosphere and low water vapor content, there is no effective way to eliminate pollutants in the air, so it is necessary to explore and test new technical methods and means.
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