The Dust Devils and its Impact
Editorials News | Sep-25-2017
The moving pillars of dust and sand that are known as “Dust Devils” are the specification of desert areas on the Earth and Mars too. A recent research has revealed that around two thirds of the fine particles lifted by these cyclones can remain suspended in the atmosphere and be carried around the globe frequently. This particular finding will have effect not only on the climate and weather of these two planets but it will certainly affect our health too. It is found that almost half of the dust lifted into the atmosphere of Mars each year comes from these so - called dust devils. The scientists have taken the samples of grains lifted by dust devils at different heights.
Dust devils have different strengths and dimensions; however, of a similar structure. These dust devils lift the grains of larger diameter from a certain height and with increases of height the grains’ diameters decreases. In the terrestrial dust devils the fine dust particles appear to stay in suspension. These small mineral aerosols can travel long distances on Earth and have an adverse impact on the climate and weather. They can also reach populated areas and affect air quality along with human health. Further research is going on to understand them more effectively.
Content: www.sciencedaily.com
By: Anita Aishvarya
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