Main measures to protect the air

People live in a sea of ??air. They breathe air all the time throughout their lives, so we must protect the environment and avoid air pollution. The following is the information I have compiled for you. You are welcome to read and refer to it!

Main measures to protect the air

1. Reasonable industrial layout to facilitate the spread of pollutants and between factories Use each other's waste gas to reduce waste gas emissions. 2. Implement regional centralized heating, replace scattered low chimney groups with high-efficiency boilers, and replace scattered low-chimney emission methods with high-efficiency boilers. This is a powerful measure to prevent and control urban air pollution. 3. Change the fuel composition. Such as the development of urban industrial and residential gas and liquefied petroleum gas, the adoption of low-sulfur fuel and new energy (solar energy, wind energy, geothermal energy, etc.). Coal mining should be promoted to remove most of the sulfur in coal (mainly pyrite sulfur). 4. Reduce automobile exhaust emissions. The main purpose is to change the combustion design of the engine, improve the combustion quality of oil, and strengthen traffic management. 5. Toxic gases emitted by industrial devices must be controlled from the aspects of process reform and recycling. 6. Chimney dust removal. Sulfur dioxide control technology in flue gas is divided into two categories: dry method (using solid powder or particles as absorbent) and wet method (using liquid as absorbent). 7. Reform the production process and control waste gas. The treatment of air pollutants emitted by industries mainly focuses on dust removal and control of sulfur dioxide and nitrogen oxide emissions. 8. Regional central heating and heating. Set up large electric heating plants and heating stations to implement regional centralized heating and heating, especially locating thermal power plants and heating stations in the suburbs. This is ideal for northern cities with dense chimneys and heating in winter. A very effective measure to eliminate smoke and dust. 9. High chimney smoke exhaust: The higher the chimney, the more conducive to the diffusion and dilution of smoke. Generally, the effect is very obvious when the chimney height exceeds 100m. It is uneconomical to increase the cost if the chimney is too high. It should be noted that this is a method of reducing local ground pollution at the expense of expanding the scope of pollution. 10. Control the emission time of exhaust gas 11. Treatment of exhaust gas from transportation vehicles 12. Greening and afforestation plants have the function of filtering various toxic and harmful air pollutants and purifying the air, especially forests. Therefore, greening and afforestation are a relatively economical and effective way to prevent and control air pollution. effective measures. The importance of protecting the air

Because the earth has an atmosphere, humans and various creatures can breathe. Nitrogen (N?2) has the largest proportion in the earth's atmosphere, accounting for about 78%. It is an indispensable source of fertilizer for plant growth; followed by oxygen (O?2), which accounts for about 21%. Humans and all living things can only breathe if they rely on it. , it is also an element of combustion; the third place is argon (Ar), and there are also very small amounts of carbon dioxide, neon, helium, methane, nitrogen dioxide, hydrogen, etc., their total amount is less than one thousandth . The content ratio of nitrogen, oxygen, and argon is stable and will not change until an altitude of more than 90 kilometers. It is worth noting that modern human activities are affecting changes in atmospheric composition.

Because the atmosphere can not only allow sunlight to pass through, but also properly retain a certain amount of heat on the earth, it is possible to regulate the temperature on the earth and make all things thrive.

The atmosphere is like the earth’s armor. If you have seen photos of the moon, you will find that there are bruises all over its surface, which are the "masterpieces" of thousands of meteorites falling from the sky. When these meteorites hit the earth and pass through the atmosphere, most of them burn into beautiful meteors. Even if a few fall to the ground, they are exhausted due to friction with the atmosphere and will not cause much harm to humans.

What the earth is particularly proud of is that there is a layer of ozone (O?3) above the atmosphere. This is a colorless gas with a special odor. It is also the protective umbrella of life. Ultraviolet rays from the sun and various cosmic rays from interstellar space can harm life. The ozone layer absorbs a large amount of ultraviolet light, and the atmosphere reduces the initial huge energy of cosmic rays. TV once described an "Uncle Martin" from Mars. Of course, it was a science fiction story. If there were really "Martians", they could only live in caves because there is no ozone layer in the upper layers of Mars and strong and long-lasting ultraviolet radiation. It will definitely give them terrible cancer. In recent years, as atmospheric pollutants rise into high altitudes, the earth's ozone layer is being destroyed. How to protect the ozone layer is an urgent issue facing mankind.

Air is an important condition for human survival.

People live in an ocean of air, and they breathe air all the time throughout their lives. Adults breathe about 10,000 liters of air every day, which is equivalent to 13.6 kilograms, which is about 10 times the weight of food in a day and 5 to 6 times the amount of water consumed. If a person does not eat for 10 days, he will not die, and if he does not drink water for 5 days, he will not die, but if he does not breathe for 5 minutes, he will die immediately. Therefore, a very important condition for human beings to emerge and multiply on the earth is that the earth has a unique atmospheric environment, which allows the earth to maintain a temperature and humidity suitable for the growth of human beings and all things. Air environmental protection slogan

1. Because of you, the mountains and rivers are beautiful, and spring returns to the earth.

2. Environmental protection is everyone’s responsibility.

3. Protect Gobi vegetation, prevent sand and dust pollution, and protect the atmospheric environment.

4. Improve urban air quality and create ecological and livable towns.

5. Because of you, the grass is green and the flowers are delicious.

6. Pick up a piece of paper and create a beautiful home.

7. To protect the earth is to protect ourselves.

8. My growth needs your care.

9. Clean air and elegant environment are what we enjoy most. Everyone should do their part to protect the environment.

10. I hope that one day, the trash cans will also be laid off.

11. Don’t let garbage enter the campus, only let good things come to my home.

12. Don’t let green disappear from your side.

13. Let me, like you, grow up healthily in this beautiful campus!

14. Purifying the air and creating a beautiful environment starts with me.

15. Pollution of the air is equal to chronic suicide.

16. I am also a life, please be merciful.

17. Love our mother and don’t let her be sad or disappointed.

18. If each person throws less paper, the earth will be more beautiful.

19. Where there is green, there is life.

20. Please hold your feet high and listen, the grass is crying.

21. Protect blue sky and clear water.

22. Because of you, the earth will be so beautiful.

23. Keep the air fresh and the sky blue.

24. Green society, forged together.

25. A drop of water brings back true love.

26. Please take care of green, green is the source of life.

27. Use your hands well, there will be no place for garbage to escape.

28. Improve air quality and raise public awareness of environmental protection.

29. Life comes from nature, and health comes from environmental protection.

30. I also have life, and we grow together.

31. Air allows us to live. Protecting trees is equal to protecting the air.

32. Various plants and good air.

33. Please don’t disturb the woods to make the air fresher.

34. Green trees and fragrant flowers? The ideal home depends on everyone.

35. Drink clean water and breathe fresh air. This requires you to care for the environment all the time!

36. Don’t let the air become an invisible killer!!

37. I am growing up with you.

38. Protecting the air means protecting our lungs.

39. Making the air fresher and protecting the environment depends on everyone.

40. Let green coexist with us.

41. Everyone loves flowers and plants, and the air environment is good.