Everyone knows that house dust is the eternal enemy of mankind, and general cleaning is a life-long duty, because you just need to restore order as it reappears. It seems that if the apartment is empty, then there is no dust, but people appear - and it is right there.
Dust sources
Volcanoes
It is believed that 70% of dust is particles of the human epidermis. However, this is not true.Volcanoes play a large role in the formation of house dust. Only one Japanese volcano, Sakurajima, releases 14 million tons of dust every year, spreading by winds around the world. The release of dust and ash from the relatively recent eruption of the Icelandic volcano Eyyafyadlayokyudl blocked the airspace of Europe for four days.
Earth surface
The second important source of dust is the earth's surface. It's hard to believe, but in an ordinary apartment you can find particles brought by the wind from distant deserts. To do this, just mop behind the sofa.
Space dust
In science, the concept of "dust" is absent. They call it aerosol, and this is unusual for our hearing. The Earth’s gaseous atmosphere always contains the smallest solid particles, and their combination, regardless of origin, called an aerosol, enters the earth every second from space. Scientists have calculated that the weight of our planet is increasing by several thousand tons annually, since cosmic dust passing through all the air layerssettles on the Earth, increasing its mass.
World Ocean
Not only space aerosol replenishes the composition of house dust deposited on our cabinets. The oceans also contribute to its formation. The foam arising on the waves, which is all kinds of mineral residues, dries in the wind and spreads like any other kind of dust.
Enterprises, transport, construction and repair
The city is an ideal environment for the occurrence and accumulation of dust. The work of enterprises and transport, the construction and repair of buildings are a source of air pollution and the appearance of particles in it, which then fall into every home. Think of London as a city of fog, smog, and dampness. This is a known misconception. In fact, the climate of the English capital is very dry. Albion was foggy 100 years ago during the time of the industrial boom, when factories, steam locomotives and home stoves smoked. The townspeople had difficulty breathing, and the maids washed mud and soot from day to day.
That was until the 70s of the last century. Until the city was scraped off, the red brick of London houses was brown from centuries of soot. Breathing dust, the Londoners removed the factory chimneys, limited the passage of cars, and for more than half a century they have not lit fireplaces. It is worth noting that during this time the demand for domestic workers has fallen significantly.
An open window, dirt on shoes, outerwear, on which a large number of small particles settle - so the dust occupies our housing. Researchers found that skin particles in the composition of the dust, of course, are present, but do not play a special role. A person washes away the bulk of the exfoliated epidermal cells in the shower.
Composition of house dust
The composition of house dust may include:
- Particles of wall materials, furniture, fiberglass
- Pet hair, everything our house is filled with.
- But the main thing is that a significant part of house dust is made up of living organisms - dust mites. It is because of them that we suffer from allergies.
Dust free
Nevertheless, it is completely impossible to get rid of dust. Life on Earth is impossible without it. The fact is that the smallest particles are the nuclei of condensation and are involved in the formation of clouds and the general natural circulation of water in nature.
Dust is eternal, it was and always will be. And although we are used to blaming our own skin for its occurrence, but this is just another misconception. The cells of our epidermis make up no more than 5% of its total volume.
