Is ozone a pollutant?

1 ozone is a pollutant in the ambient air, which means that if it exceeds a certain content in the air near the ground, it will have a dangerous impact on the environment and endanger human health. When ozone forms the "ozone layer" in the stratosphere, it is not a pollutant. Its function is to absorb 99% of the ultraviolet rays that sunlight reaches the earth. But one of the current atmospheric environmental problems is the destruction of "ozone layer" and "ozone hole". There is an "ozone hole" over the Qinghai-Tibet Plateau, and people suffer from skin cancer due to a large amount of ultraviolet radiation, which is a typical example.

Ozone is a strong oxidant and is regarded as the main pollutant in the Environmental Air Quality Standard (GB3095-20 12). The standard limit value is given. That's why you said in Beijing's environmental air quality forecast that "the main pollutant today is ozone".

Ozone is mainly used as a disinfectant for air and water.

High concentration of ozone is a colorless gas, which will stimulate the temperature. It is harmful to human respiratory organs and has an influence and harmful effect on nervous system.