hydrocarbons (VOC), nitrogen oxide, and carbon monoxide
Ozone
No, Ozone is not a primary pollutant, it is a pollutant near ground level. However, it keeps many ultraviolet rays from reaching the Earth.
Secondary Pollutant
A secondary pollutant is not directly emitted, it is formed in the atmosphere when primary pollutants are mixed as through chemical and photochemical reaction. For example, a secondary pollution would be ozone which is formed when hydrocarbons and nitrogen oxides combine in sunlight
Ozone
Ozone is called a secondary pollutant because it is not directly emitted into the atmosphere. Instead, it is formed from chemical reactions between primary pollutants such as nitrogen oxides (NOx) and volatile organic compounds (VOCs) in the presence of sunlight. These reactions produce ozone as a secondary byproduct, which can be harmful to human health and the environment.
Nitrogen oxides, carbon monoxide and volatile organic compounds are the three pollutants that react in the presence of sunlight to produce ozone. They are also called the ozone precursors.
Vehicles produce ground ozone. It is a pollutant.
Yes, in the troposphere, ozone is a pollutant.
Yes, it is. But only ground ozone is pollutant.
The ozone at ground is a secondary pollutant. It is also called bad ozone.
Ozone
Ozone in the ozone layer is not at all a pollutant but it is something without which no ozone layer may have existed. Ozone can be considered as a pollutant in the stratospheric region but in the stratosphere or the ozone layer it is of full or complete use. No harms there.
Ozone is a pollutant. It is a secondary one. High ozone is good.
The ozone at ground level is a pollutant. It acts as a secondary pollutant.
Ozone is a pollutant. It is at ground level a pollutant.
The tropospheric ozone is bad ozone. It acts as a pollutant.