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| | Modeling Atmospheric Deposition from a Cesium Release in Spain Using a Stochastic Transport Model |
 | | Deposition is the transfer of airborne material (gaseous and particulate) to the earth's surface, and may be classified as `dry' or `wet', depending on whether or not precipitation is involved. |
 | | Dry deposition occurs near the earth's surface, while wet deposition involves absorption of airborne pollutants onto precipitable elements (water droplets, ice particles, graupel, etc.) and is another means by which pollutants reach the earth's surface. |
 | | Gaseous deposition is typically a function of chemical activity, solubility, and diffusion characteristics, while particulate deposition depends on particulate shape, size distribution, density, impaction, solubility, gravitational settling, and diffusion (Sehmel 1980). |
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