Haze is a combination of fog and haze. Haze is common in cities, especially in northern cities.
There is a difference between fog and haze:
Fog is a natural phenomenon and consists of water vapor.
Haze is smoke containing dust, sulfuric acid, nitric acid and other particles.
Knowing the difference between fog and haze, let's briefly introduce the origin of haze ~ ~ ~
There are many sources of smog, such as automobile exhaust, industrial emissions, building dust, garbage incineration, and even volcanic eruption. Hazy weather is usually formed by the mixed action of various pollution sources. However, in smog weather in different regions, different pollution sources have different functions.
Next, I'll give you a popular science about the main reasons for smog formation ~ ~
When the suspended water vapor in the atmosphere condenses and the visibility is lower than 1000 meters, it is called fog in meteorology. ? When the water vapor contained in the air reaches the maximum, saturation will occur. If the water vapor exceeds saturation, the excess will condense out and combine with tiny dust particles in the air to form small water droplets or ice crystals, which will be suspended in the air layer near the ground and become fog. The lower the temperature, the less water vapor can be contained in the air, and the easier it is to form smog.
1. The main factor when the atmospheric pressure is low and the air does not flow. Because the air does not flow, the tiny particles in the air gather together and float in the air.
2. The ground is dusty and the air humidity is low. People and vehicles on the ground stir up dust.
3. Automobile exhaust is the main pollutant emission. In recent years, there are more and more cars in cities, and automobile exhaust is a factor of smog.
4. Secondary pollution produced by factories.
5. CO2 and other pollutants emitted by heating in winter.
Therefore, to sum up, smog is the result of the interaction between specific climatic conditions and human activities.
Another thing we all need to know is the harm of smog, so as to better protect ourselves ~ ~
The main hazards of smog mainly include the damage to our human respiratory system and internal organs, because it will breathe into the body. There are also some bad substances, bacteria and so on. That will invade our bodies and affect our physical and mental health. In short, it's harmful. You can also search for specific hazards yourself ~ ~
Finally, I want to share with you some things that we can do personally and make some small efforts for our atmospheric environment together ~ ~
1. It is recommended to watch more online publicity activities after studying and working. For example, energy-saving publicity answers, lectures on energy-saving topics, and energy-saving promotional videos. Consciously understand the concept of green and low carbon.
2. Participate in garbage sorting. According to the requirements of garbage classification, we put the garbage according to the "dichotomy" (recyclables and other garbage).
3. Practice a low-carbon lifestyle. Reject the phenomenon of running water, turn off the lights to save electricity, print on both sides to save paper, and choose environmental protection methods such as riding a bike and taking a bus according to the travel distance. ......
These are all things that you can do to prevent smog weather in your daily life ~ ~ Let's work hard to protect the environment and the atmosphere, come on ~ ~ ~