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The dust in Iraq and Iran are migratory systems that move from west to east or east to west in the spring and have the highest intensity, concentration and extent until mid-summer. The cause of their occurrence is the lack of humidity, dry environment, low rainfall and annual droughts.
DUST definition: 1. dry dirt in the form of powder that covers surfaces inside a building, or very small dry pieces…. Learn more.
Dust, in general, is any microscopic, powderlike particle or collection of powderlike particles that is made up of sand, soil, fragments of organic tissue, or other materials and is both light enough to be carried by the wind and heavy enough to be deposited on a surface.
Oct 19, 2023 · Dust is a collection of microscopic particles of material. Dust is heavy enough to see and light enough to be carried by the wind. Dust can be made up of pollen, bacteria, smoke, ash, salt crystals from the ocean, and small bits of dirt or rock, including sand.
Sep 27, 2021 · You and your pets are constantly contributing skin cells and hair to dust. Dust is also made up of decomposing insects, bits of food, plastic and soil.
Sep 26, 2021 · Poor air quality and damp homes are a source of disease and death. By deduction, dust would also contribute to adverse health outcomes. Certain types of dust are particularly bad; there are ...
Jun 19, 2019 · Dust includes tiny particles of debris and dead skin. Its small size means it can be inhaled and potentially evoke an immune reaction.
DUST meaning: 1. dry dirt in the form of powder that covers surfaces inside a building, or very small dry pieces…. Learn more.
Sep 27, 2021 · Everything in our homes gathers dust. But what exactly is it? Where does it come from, and why does it keep coming back? Is it from outside? Is it fibers from our clothes and cells from our skin?
What is dust made of? - BBC Science Focus Magazine
