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Mineral dusts that fly into atmosphere during dust storms in Asian deserts can transport across oceans in clouds and reach the western U.S.. These dust particles influence the rain and snow pack in the western U.S. by acting as ice nuclei in atmosphere. With industrial developments, emissions of sulphates and nitrate gases to atmosphere has increased. These can form acids like sulphuric and nitric acid and react with dust particles in the atmosphere, changing their ability to cause rain and snow fall, and affecting global climate. A group of material scientists at the Environmental Molecular Science Laboratory, a Department of Energy national user facility located at the Pacific Northwest National Laboratory, in collaboration with Atmospheric Measurement Laboratory scientists, are studying these acid reactions with mineral dust aerosols using high resolution characterization and studying their impact in ice nucleation.

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Document Title: Mineral Dust
Category: Science as Art
Media Type: Photos
Date of Image/Photo:
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URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/DRAE-9N8SKA

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