What are the main gases that cause acid rain? How to control acid rain

Acid rain is formally called acid deposition, which can be divided into two categories: "wet deposition" and "dry deposition". The former refers to all gaseous or particulate pollutants that fall to the ground with precipitation such as rain, snow, fog or hail, while the latter refers to the acidic substances carried by dust falling from the sky on days when it is not raining. How much do you know about acid rain?

Contents of this article

1. What is the main gas that causes acid rain?

2. How to control acid rain

3. What happens if you are exposed to acid rain?

What are the main gases that cause acid rain?

Gases that cause acid rain include sulfur dioxide, sulfur trioxide, hydrogen sulfide, nitrogen dioxide and other substances.

Acid rain is wet deposition among acidic deposition. Acidic deposition can be divided into two categories: wet deposition and dry deposition. The former refers to all gaseous pollutants or particulate pollutants that fall to the ground with precipitation forms such as rain, snow, fog or hail, while the latter refers to the acidic substances carried by dust falling from the sky on days when it is not raining. Acid rain is further divided into nitric acid rain and sulfuric acid rain.

How to control acid rain

The fundamental measure to control acid rain is to reduce the emission of sulfur dioxide and nitrogen oxides.

The main measures are:

1. Raw coal desulfurization technology can remove about 40% to 60% of inorganic sulfur in coal.

2. Give priority to the use of low-sulfur fuels, such as low-sulfur coal and natural gas with low sulfur content.

3. Improve coal-burning technology and reduce emissions of sulfur dioxide and nitrogen oxides during the coal-burning process.

4. Flue gas desulfurization is carried out on the flue gas formed after coal combustion before it is discharged into the atmosphere. Currently, the lime method is mainly used, which can remove 85% to 90% of sulfur dioxide gas in the flue gas.

5. Develop new energy sources, such as solar energy, wind energy, nuclear energy, and combustible ice.

What happens if you are exposed to acid rain?

Acid rain is extremely corrosive to the skin, but does not cause obvious damage. If you are exposed to acid rain, it is recommended to wash your body immediately and change your clothes.

Acid rain is formally called acid deposition, which can be divided into two categories: "wet deposition" and "dry deposition". The former refers to all gaseous or particulate pollutants that fall to the ground with rain, snow, fog or hail, while the latter refers to the acidic substances carried by dust falling from the sky on days when it is not raining. Acid rain in my country is mainly caused by the large-scale burning of high-sulfur coal.