How to write a smog composition of more than 300 words?

Looking out the window, I suddenly found that I couldn't see the blue sky and white clouds. There is a gray scene between heaven and earth, and even the opposite building has only a hazy outline. This kind of weather is more and more frequent, and the smog silently hangs over our city.

Haze is a turbid phenomenon formed by a large number of particles such as smoke and dust suspended in fog. According to the remote sensing satellite monitoring of the Ministry of Environmental Protection: 65438+29 10, our country10.3 million square kilometers was shrouded in smog, and the air quality was seriously polluted.

How did the foggy weather come about? Many families own cars, which makes our travel more convenient, but the exhaust emissions of cars pollute the air; Power plants, oil refineries and chemical plants "do their best" in our city, but soot and dust are discharged day and night; Gorgeous fireworks and firecrackers are dazzling, but the air is full of smoke, which becomes very turbid, the air quality drops sharply, and the indexes of PM2.5 and PM 10 rise linearly. These are the main reasons for smog. They have brought us convenience and pleasure, but they have also quietly brought us unexpected consequences.

In foggy days, we breathe turbid gas. The smog in the air can cause pneumonia, pharyngolaryngitis, bronchitis, heart failure and other diseases. 1952, the invisible killer in London, England took 4,000 lives in just five days, and took 8,000 lives in the next two months. It can be seen that the power of fog should also sound the alarm for us.

What we want is fresh air and good health. Please don't sacrifice your health for the so-called good life. Drive less, travel green, plant more trees and protect forests. To cure haze, start with me.