1. What is PM 2.5 dust?
PM 2.5 dust is extremely small suspended particles with a diameter of less than or equal to 2.5 micrometers only 1/40 of a human hair should not be visible to the naked eye. The composition of PM 2.5 dust is very diverse: It can be metal particles or compounds of Carbon, Nitrogen, Sulfide,… in both solid and liquid form.
2. Causes of PM ultrafine dust formation 2.5
The causes of this ultrafine dust are diverse, but most of them are formed from sources of pollution such as vehicle exhaust emissions, plant operations, construction works, and homes. .. Of which, vehicle exhaust is the main source of PM2.5 virus in the air (accounting for 57%). Next is the construction of buildings and houses (32%); and industrial production activities (11%). Also because of that, the time of traffic jams is the time when PM 2.5 dust is the highest. Ultrafine dust is also one of the leading environmental pollutants today. Typically in the last months of 2019, the situation of ultra-fine dust in the air in both Hanoi and Ho Chi Minh City exceeded the safety threshold many times, causing harm to human health.
3. How does PM 2.5 dust affect human health?
Because of its small size, this fine dust can enter human body cells in the bloodstream, destroying the self-defense and immune mechanism from inside the body’s cells, causing many acute diseases and injuries. Permanently access to vital organs like lungs, heart, brain, etc.
According to health experts, people who are suffering from heart and lung disease (shortness of breath, shortness of breath) and cause illnesses such as asthma or heart disease, the elderly, children are susceptible to dust removal. PM 2.5 virus has the most negative impact on health. PM2.5 dust entering the human body can cause premature heart or lung disease deaths.
However, even healthy people who often live in heavy air pollution with PM 2.5 dust levels or live near sources of PM dust emissions are also at risk of serious, potentially fatal diseases.
PM 2.5 fine dust contains many metal particles that can cause cancer and gene mutation for descendants.
4. What to do to protect yourself from this dangerous dust
- Always wear an active mask when going out
Although regular masks cannot prevent these PM 2.5 microscopic dust particles, they still partly limit their penetration into the human body.
- Use an air purifier
Most of our time is in the office or at home, so the air environment here is extremely important and air purifiers are probably the best option.
Currently, many advanced air purifiers can filter even the smallest dust like PM2.5. The HEPA filter is considered as the most powerful shield, which is the etching of PM2.5 fine dust. HEPA filters are often equipped on Azura, Sharp, Panasonic air purifiers, …
- Planting trees around your home and workplace
If you have a garden in the front or back yard, you should plant all kinds of vegetation including flowers and trees. Trees in particular not only bring you and your family joy but also create many other benefits such as making the air fresher; provide oxygen, make the streets cool, create a cleaner living environment.
- Limiting the use of personal mobility devices and not being in a polluted environment
Personal media are the most common cause of PM 2.5 fine dust, so you should limit your use of these media. It is best to choose public vehicles such as buses, … to be able to reduce emissions somewhat.
