Acid rain is mainly caused by the man-made discharge of a large amount of acid into the atmosphere, followed by some natural emissions.
Due to the destruction of nature by human beings, more and more natural disasters occur. Acid rain is one of them. In order to make everyone aware of protecting the environment, I will tell you how acid rain is formed!
Details
01
Artificial emissions:
With the improvement of living standards, almost every household has opened a car, and the car is run by burning gasoline, we know that gasoline contains sulfur components, after burning will produce a lot of sulfur dioxide, when they are released into the air will destroy the ozone layer, leading to the formation of acid rain, in addition, The burning of fossil fuels such as coal, oil and natural gas also releases sulfur dioxide. The high temperatures of coal burning combine nitrogen and oxygen in the air into nitric oxide, which is then converted into nitrogen dioxide, causing acid rain.
02
Natural emissions:
In addition to our human activities that produce harmful substances that cause acid rain, nature also produces some harmful substances, such as the fog in the ocean, which will entrain some sulfuric acid into the air; After the death of living creatures in the role of bacteria can decompose some sulfide, and then converted into sulfur dioxide; volcanic eruptions will also bring out a lot of sulfur dioxide gas; lightning will also make the nitrogen and oxygen in the air partially combined to produce nitric oxide, and then in the troposphere is oxidized to nitrogen dioxide.
03
A large amount of sulfur dioxide discharged from daily life goes through the “rain forming process in the cloud” and undergoes liquid phase oxidation reaction, forming sulfuric acid raindrops and nitric acid raindrops; After the “washing process under the clouds”, large raindrops were formed, and finally landed on the ground, forming acid rain. Because our country burns more coal, so the acid rain in our country is sulfuric acid rain.
04
The acid rain in our country is mainly of sulphuric acid type. The three major acid rain regions in our country are as follows:
1. Southwest acid rain area: It is a serious precipitation pollution area second only to the acid rain area in central China.
2. Acid rain area in central China: It has become the acid rain pollution area with the largest acid rain pollution range and the highest central intensity in the country.
3. Acid rain area along the coast of East China: its pollution intensity is lower than that of acid rain areas in central and southwest China.
The three major acid rain areas in the world are Western Europe, North America and Southeast Asia.
