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Where does the dust?
Really a miracle only if you don't know what it is. Incidentally, at home in the dust... the desert Sands of the Sahara, fly ash from a Japanese volcano salt from the Pacific, micro-particles of soil from under Donetsk and a surprising number of interesting particles.
It is important that the country annually deposited billions of kilograms of dust. 70 percent natural dust, and the remaining 30 — human heritage. The main part consists of waste from the combustion of mineral fuel — oil, gas, coal, wood. But now it's not about them, everything is simple and clear.
With regard to natural dust, its main source — the earth. Wind-blown soil particles rise high in the sky and the wind carries them for miles. Ocean dust — small crystals of salt, which throws the sea into the air is second place. In the atmosphere so are not themselves crystals and tiny water droplets that occur when the excitement and the destruction of the air bubbles that rise from the bottom.
Volcanoes and large forest fires are another major source of dust. Moreover, not only the volcanoes that erupt, but smokers that are inactive.
Finally, do not leave us without attention and deserts. For example, a huge Sahara, from 50 to 300 million tons of dust are deposited annually in the mountains of Central America, settle in the cities of Ukraine, England, Australia. No wonder your house dust contains any of the above samples!
Why dust gathers in empty spaces, even if they are closed? It's simple. First, this is the most thorough cleaning will not change the composition of the air in the room. Even if the room is empty — air in it still!
Source: /users/413
It is important that the country annually deposited billions of kilograms of dust. 70 percent natural dust, and the remaining 30 — human heritage. The main part consists of waste from the combustion of mineral fuel — oil, gas, coal, wood. But now it's not about them, everything is simple and clear.
With regard to natural dust, its main source — the earth. Wind-blown soil particles rise high in the sky and the wind carries them for miles. Ocean dust — small crystals of salt, which throws the sea into the air is second place. In the atmosphere so are not themselves crystals and tiny water droplets that occur when the excitement and the destruction of the air bubbles that rise from the bottom.
Volcanoes and large forest fires are another major source of dust. Moreover, not only the volcanoes that erupt, but smokers that are inactive.
Finally, do not leave us without attention and deserts. For example, a huge Sahara, from 50 to 300 million tons of dust are deposited annually in the mountains of Central America, settle in the cities of Ukraine, England, Australia. No wonder your house dust contains any of the above samples!
Why dust gathers in empty spaces, even if they are closed? It's simple. First, this is the most thorough cleaning will not change the composition of the air in the room. Even if the room is empty — air in it still!
Source: /users/413
