Sandstorm is a frequent meso-scale disastrous event in spring over extensive north China. A
severe event may cause great losses of crops, livestock and human lives. Sandstorm acts as the primary source of sand aerosols. It is estimated that as high as two billion tons of such particles comes into air and, influencing radiation properties, cloud physics and environment, they exert strong impacts on the earth - air system and, particularly, the atmospheric environment.
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