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What is fine dust? How does fine dust affect human health?

You’ve probably heard about Fine Dust before, haven’t you?

Yes, I’m sure you’ve heard it, because the radio keeps saying it all day long 😀 So how do you understand Fine Dust? Why is fine dust so much talked about, why is fine dust considered more dangerous than HIV?

So in today’s article, I will go with you to learn about fine dust, to see specifically how dangerous it is. Let’s gooo…

I. What is fine dust?

Fine dust (or PM 1.0 dust) is liquid or solid particles floating in 1m3 atmosphere.

PM stands for Particulate Matter, and the symbol 1.0 is the size of particles less than or equal to 1 μm (micrometer) in diameter, which is 1 millionth of a meter.

In other words, fine dust is microscopic dust particles that are almost invisible to the human eye. Let’s imagine for body hairs, do you know the diameter of these hairs?

Yes. The hairs have an extremely small diameter of only 40-120 μm, which averages 60 for an adult.

From the hairs let’s compare with fine dust, fine dust is the smaller particles with the size less than 10 μm, so it is necessary to divide the hair into 6 parts but that is only the largest type of fine dust.

In addition to fine dust PM 1.0, we often see people refer to fine dust PM 2.5, PM 10 μm. The smallest we have nano fine dust. So you can see, how small the size of the fine dust particle is.

What is fine dust How does fine dust affect human health | Good Knowledge

And obviously, the smaller the dust particles, the easier it is to go deep into the respiratory system and affect the structure of DNA more because the oxygen imbalance causes healthy cells to be destroyed and affects metabolism. organic matter of DNA.

Every day we still have to comply with wearing helmets when participating in traffic, not using dirty foods, or not eating, using things of unknown origin and harmful to health.

Why should that be?

Of course, for a healthy life and not being “poor” soon ^^.

However, there is something extremely toxic that still exists around us (especially in big cities and manufacturing industries) – that is fine dust. So how dangerous is fine dust?

What is fine dust How does fine dust affect human health | Good Knowledge

According to statistics, every year we have more than 40,000 people die from stroke, 3,500 people die from HIV, 7000-14000 people die from traffic accidents… However, these numbers are still mosquitoes, still much lower. much higher than the 52,323 deaths each year due to air pollution.

What is fine dust How does fine dust affect human health | Good Knowledge

You are wondering if those people died due to air pollution, but it has nothing to do with the fine dust that the ad is talking about right ^^. Then it is related:

According to WHO, fine dust and No2 are the two most common causes of deaths from air pollution, so it is precisely we are facing an invisible and extremely dangerous enemy. we never knew.

II. How dangerous is fine dust?

Normally, large dust particles will be eliminated by our body through self-protection mechanisms. However, this mechanism will not work for small dust particles. It’s like a thin mesh that can’t catch small fish.

What is fine dust How does fine dust affect human health | Good Knowledge

Once the body can’t eliminate it on its own, these dust particles will go deep into the lungs. Then from here, it will cause a lot of troubles and scary dangers to our bodies.

If it is mild, it will accumulate in the alveoli and make the body’s respiratory system work less efficiently.

However, this is still not the scariest thing, scientists have shown that if the dust particles are PM 2.5 μm or less, it can pass through the barrier between the gas and the blood directly. enter blood vessels.

Once it is “unlocked”, it will cause extremely dangerous diseases. Detail:

#first. Causes respiratory diseases

The first will be respiratory diseases, fine dust when combined with CO/SO2/NO2 will interfere with blood in getting oxygen. This leads to a lack of O2 in the organs in the body, which in turn leads to many dangerous diseases.

What is fine dust How does fine dust affect human health | Good Knowledge

Not only that, the toxins in fine dust, once entering the human body, can cause chronic obstructive pulmonary disease.

#2. Effects on the cardiovascular system

Not only the respiratory system, but also the cardiovascular system is greatly affected. While we are being recommended to eat vegetable oils to be good for the cardiovascular system, fine dust is one of the factors that greatly affect the functioning of the cardiovascular system.

What is fine dust How does fine dust affect human health | Good Knowledge

Toxic substances in fine dust will increase the possibility of blood vessels bursting due to blockage, causing extremely dangerous diseases such as stroke, heart attack, etc., making the patient very likely to die.

#3. Affects brain activity

There is also the problem of fine dust “unlocking” and going straight into the blood vessels. And when the blood is transferred to the brain, the toxins in the blood will affect the brain’s activity. Simply because the brain is the control center of the muscles, it is very dangerous for the brain to not work properly.

What is fine dust How does fine dust affect human health | Good Knowledge

From there, it will lead to diseases such as mental, neurological, memory loss and even fibrous rupture of brain blood vessels and cause stroke.

#4. Other dangerous diseases

In addition to affecting the brain and important systems in the body as mentioned above, fine dust is also a cause of dangerous diseases such as:

Lung cancer: Toxins in fine dust can change DNA and lead to malignant cancers.

What is fine dust How does fine dust affect human health | Good Knowledge

– Liver dysfunction when forcing the liver to “suffer” more in filtering blood. Once the liver is overactive, toxins will not be eliminated, causing other dangerous diseases for the body.

– Diabetes when toxins in fine dust can affect insulin.

=> Just like that, we can see that harmful fine dust is not inferior to agents such as alcohol, tobacco or other factors that we often tell each other that we must abstain, must Take care to protect your health.

III. Protect yourself against the deadly element called dust

So how can we protect ourselves from the diseases that fine dust causes? Well, there are a few very effective ways below:

#first. Avoid factors that cause fine dust

This is quite sweet, especially for a developing country like Vietnam. In Vietnam, no matter where we go (in the city or in the countryside), we can breathe in fine dust.

What is fine dust How does fine dust affect human health | Good Knowledge

Fine dust comes from factory chimneys, from vehicles participating in traffic from burning straw or welding and cutting metal. However, avoiding these agents is almost impossible, because it is always present in daily life.

Thinking back to when he was a child, he was so foolish, he liked to smell the smoke from the farm trucks or dump trucks and followed him. What an intense childhood ^^

#2. Avoid allowing fine dust to enter the nose

If it is impossible to avoid it, the only thing we can do is to prevent it from entering our body.

If you are thinking about wearing a mask, congratulations, you have come up with the right solution. However, the medical masks or ordinary masks that we often wear can only prevent large dust particles.

What is fine dust How does fine dust affect human health | Good Knowledge

As for fine dust, we must use specialized masks, such as N90, N955 or N99, N100.

According to the American Institute for Occupational Safety and Health,

N90 masks can resist 90% of fine dust, N95 is higher up to 95% and N99 is higher than 99%, and 100% type is almost absolute with numbers from 99.97% or more. .

What is fine dust How does fine dust affect human health | Good Knowledge

However, these specialized masks also only prevent dust with a size of 0.3 micrometers or more.

=> Thus, wearing a mask not only helps us stay safe during the Covid-19 epidemic, but it also can hardly help us prevent extremely dangerous dust particles from entering the body. So, remember to wear a mask when going out to protect yourself. Wish you always have a good health!

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