Viết 1 bài văn nói về ô nhiễm không khí ngắn gọn bằng tiếng anh, lưu ý chỉ dùng các cấu trúc giới hạn trong chương trình lớp 8 Viết bài theo dàn ý sau : a) introduction (giới thiệu, giải thích về ô nhiễm không khí) b) body (thân bài) + causes (nguyên nhân) + effects (hậu quả) c) conclusion (kết luận) + solution (giải pháp) + the hops (hi vọng về tương lai tốt hơn)

Nowadays, big cities are facing with air pollution, one of the most serious global issues. One of the causes is vehicular traffic. The combustion of the automobile fuel whether it is diesel or petrol, that powers a vehicle, leads to the release of poisonous gases released through the exhaust of the vehicle. Smoke generated by factories is also let out into the air leading to pollution. Moreover, the burning of fossil fuels such as coal

Environmental pollution is the impact of bad factors around the environment that change the nature of the environment and violate environmental standards, affecting human health and life. Air is a form of matter in nature without which humans would not be able to exist. When the air environment is polluted, human life will be directly affected because then our lungs will inhale extremely toxic gases and affect the human respiratory system.
Air pollution is the change of components in the air due to the appearance of some foreign substances, they make the air change, become unclean, have a bad smell, pollute the air. It also obscures the view. The first cause of air pollution can be said to be people. More and more factories are springing up, how much is toxic gas emissions to produce products. Where does industry go at the end of production? flying into the sky, those toxic gases will directly pollute the atmosphere, even more seriously, puncture the ozone layer, then humans are the victims who suffer all. Besides, Part of the cause is caused by man-made factors, which can be mentioned as: volcanoes, forest fires, dust storms or the phenomenon of sea water evaporation. We will go into details to better understand these factors. this agent.

The first can be mentioned is the phenomenon of volcanic eruptions, when volcanic eruptions are often accompanied by toxic chemical components to the outside environment with a very wide range. Besides, there is another reason that the carcasses of plants and animals in the natural decomposition process can also lead to air pollution.

Those natural as well as man-made factors have direct and indirect effects on the air environment, in general, the air environment is becoming increasingly polluted and threatened, human life. What will happen if we have to inhale such toxic dust every day. What consequences will it bring to humans as well as all things?

The first thing to mention is that it directly affects human health and life, when inhaling toxic gases our lungs will be damaged. Dust entering the lungs causes mechanical irritation, fibrosis of the lungs leads to respiratory diseases, dust can cause diseases of the eyes, skin, diseases of the blood and other body systems, cardiovascular diseases and even is carcinogenic to humans. So, in the face of these dangerous harms, what should people do and how? That's a big question that I and you need to take responsibility for.

For factories that have been and are currently in production, it is necessary to have appropriate discharge measures and to replace more advanced and modern machines, to reduce emissions and to use natural fuels and raw materials. People also need to be self-aware of their own behavior, limit indiscriminate burning of waste, need to handle it properly and rationally, actively use public transport to reduce congestion and dust from cities. vehicles and motorcycles. The community joins hands to plant trees to add to the beauty as well as contribute to improving the air environment to be cleaner to protect our own health. Each of us and the whole community Let's join hands to support and protect a clean green environment, fresh air and the most comfortable life.
More conscious to have a green and clean life, you and I should do the same. After this article, I will start doing even the smallest things to protect the health, the environment and the people around. I hope that one day environmental pollution or air pollution will no longer be a human problem, a green life will be all around us.