What is the impact of dust on the environment? What are the dangers of dust to humans?

1. Dust is the powder particles of soil or other substances that are finely dried into powder, and are turned into fine parts; Fine powders, dust particles are generally between hundredths of a millimeter and a few hundredths of a millimeter in diameter, which are invisible to the human eye.

2. Dust is the enemy of human health, so people especially hate it, because it carries many bacteria, viruses and insect eggs flying everywhere and spreading diseases. Industrial dust and fine dust can make workers suffer from a variety of difficult occupational diseases, excessive dust can also cause environmental pollution, affect people's normal life and work, induce human respiratory diseases and so on.

3. Dust is very harmful to the computer, too much dust may block the CPU fan, make the fan stop, cause the CPU to overheat and burn the consequences, but also affect the contact between the boards, and may also cause the corrosion of the circuit board.

Dust is the enemy of human health, and dust carries many bacteria, viruses and insect eggs everywhere and spreads diseases. Industrial dust and fine dust can make workers suffer from a variety of difficult occupational diseases, and excessive dust will also cause environmental pollution, affect people's normal life and work, and induce human respiratory diseases. Dust is also beneficial, because if there is no dust in the atmosphere, the sun's rays will not be absorbed, reflected, scattered and refracted, and the sky will be either too bright or too dark.

Without dust, the water vapor in the air cannot condense, and the surface of the earth will become arid and barren.

Reading "The Journey of Dust", I have a new understanding of this insignificant dust. The ubiquitous dust is not only annoying, it also has a beneficial side to human beings.

Dust is the never-tireless traveler of this world, drifting with the turbulence of the air. The air around us, from indoor to outdoor, from the city to the countryside, from the flat land to the mountains, from the desert to the ocean, has its whereabouts almost everywhere. A truly dust-free space can only be made in a laboratory.

There is so much dust floating in the air, which has a lot of effects on the change of weather. It turns out that the dust is still the little engineer who creates clouds and raindrops, and they will help the moisture in the air to condense into clouds and raindrops, without them there will be no white clouds in the sky, and there will be no heavy rain and light rain. Without them in the summer, the strong sunlight will shine directly on the earth, so that the temperature cannot drop.

This is the role of dust in nature. In the quiet air, the dust begins to differ'Speed drops. After many days of this, a layer of dust was laid on the roof, on the doors and windows, on the bookshelves, on the tabletops and on the floor.

The dust rises again by the turbulence of the air, and the wind blows them far away.

So where does the dust come from? Some are debris from rocks from the mountains, some are dried smears from fields, some are salt powder from the sea that evaporates from the waves, some are volcanic ash, and some are cosmic dust from interstellar space. These are natural dusts.

There are many kinds of dust that are harmful to human life. Ever since organics have joined the ranks of dust, you see, the danger has become even more serious. So what is the harm of dust to human life?

It can dirty our air, it can stain our houses, and sometimes they destroy our industrial products and turn them into waste. Moreover, the most serious thing is that dust is the destroyer of the respiratory duct, he they can make the nostrils blocked, the trachea inflamed, and the lungs injured, which can cause colds, epidemics, pneumonia and other infectious diseases.

In recent years, scientists have invented ways to trap dust with high-voltage electric currents. Humans are trying to control the travel of dust so that the ubiquitous dust is no longer a scourge for humanity but a blessing for humanity.

Benefits of Dust:

If there is no dust in the atmosphere, the light from the sun directly to the earth will not be absorbed, reflected, scattered and refracted, and the sky will be full of dust and blue, without wind, snow, rain, dew, glow, and rainbow.

Since dust is a hygroscopic particle, without its core, the water vapor in the air will not be able to condense, and it will be difficult for clouds in the sky to form, and the surface will lose the cloud cover, and it will become arid and barren, and the weather will either be too hot or too cold.

Without dust, many harmful rays in the universe would break into the Earth's surface unhindered and pose a deadly threat to humans and various living beings.

In addition to these benefits, dust condenses water vapor.

Let them become droplets, or else everything will be wet and the creatures will not survive.

Although dust has many problems, its contribution is immeasurable, it can enable the earth to gently obtain the sun's energy, and it can also make the atmosphere have enough condensation nuclei to increase the chance of cloud and rain formation; Regulate the temperature of the earth's surface to make it suitable for the survival and reproduction of life.

The downside of dust:

Dust is the enemy of human health, so people especially hate it, dust carries many bacteria, viruses and insect eggs everywhere and spreads diseases.

Dust industry dust and fine dust in workers' lives can make workers suffer from various occupational diseases, and excessive dust will also cause environmental pollution, affect people's normal life and work, and induce human respiratory diseases.

Dust is very harmful to computers.

Excessive dust may clog the CPU fan, cause the fan to stop, cause the CPU to overheat and burn out, affect the contact between the boards, and may also cause corrosion of the circuit board.

Dust is very harmful to various organs of the human body, especially the particulate matter produced by the decoration of metal ions, benzene, formaldehyde and other pollutants, through the nasal cavity, upper respiratory tract and other organs, it will destroy the mucosal tissue of the human body, resulting in headache and dizziness, vision loss, dyspnea, neuromembrane disorders and a series of diseases, and in severe cases, it is life-threatening.

According to experts, the possibility of spread of germs, including SARS, once adsorbed on dust in the air, will greatly increase. In particular, fine dust with a diameter of less than a micron can directly enter the alveoli of the human body and bring bacteria into the body.

People who often work in dusty environments inhale more dust than others, so they also have a higher chance of developing silicosis (a type of lung disease), so they can usually eat more pig blood, because this kind of thing is dusted, which can help remove dust from the body.

The most serious hazard is pneumoconiosis. Directly you will feel discomfort in the pharynx.

Working in a dusty environment for a long time, and without any protective measures, will seriously get pneumoconiosis.

Dust can be found everywhere in our daily lives, whether it is in the home, office, or other public places. However, few people know what benefits dust has for humans. In fact, dust has a lot of positive effects on our physical health to a certain extent.

First of all, dust can help boost the body's immunity. There are many microscopic harmful substances such as microorganisms and bacteria in dust, but only a small percentage are pathogenic bacteria. When we are exposed to these microbes, our body reacts to them, boosting our immunity.

In addition, the bacteria in dust can also have a positive effect on our gut flora, helping to regulate our physical health.

Secondly, dust can also help us reduce allergy symptoms. Modern people tend to encounter some allergens present in the environment, such as pollen, pet hair, dust, etc., which may overreact to my body or pants, resulting in physical discomfort. But some studies have shown that if we were exposed to some common microscopic allergens in our early years, our bodies could better adapt to the environment, thereby alleviating some of the allergy symptoms.

The microorganisms and small particles in the dust can help us to do this process well.

Finally, the dust still has a certain value for the camp. There are many organic particles and minerals in dust, which have high nutritional value in the natural environment. When we inhale dust, some of these substances enter our bodies and provide us with nutrients.

In general, although dust may cause us some inconvenience in our daily life, it is actually beneficial to our health. Of course, we should also pay attention to maintaining cleanliness and hygiene, and avoid excessive prolonged exposure to dust, so as not to adversely affect our body. <>