Features of atmospheric dust.
2020
The article presents the characteristics of one of the main atmospheric air impurities - atmospheric dust, including: hygienic - by biological effect; meteorological - distribution in the atmosphere; technical - economic and industrial activities. It was noted, that particles up to 10 μm in size during breathing are mainly captured in the nasal cavity, while smaller and lighter particles up to 2.5 μm in size are in the air for a long time and practically do not settle on the surface of the earth. They pose the greatest risk to human health. The individual components of atmospheric dust impurities are divided by their origin into - space, volcanic, aeolian, marine and industrial. At the same time, their characteristics are given and the share of each component in environmental pollution is estimated. In addition, a description is given of the characteristics of atmospheric dust in the problem of climate change. Ref. 2.
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