Which of the following is a primary pollutant that contributes to the formation of smog?
Ozone
Nitrogen dioxide
Methane
Carbon dioxide
The primary pollutant that contributes to the formation of smog is nitrogen dioxide Smog is a type of air pollution that occurs when pollutants such as nitrogen oxides, volatile organic compounds (VOCs), and particulate matter react with sunlight to form a mixture of ozone, nitrogen dioxide, and other compounds.
Nitrogen dioxide is a reddish-brown gas that is commonly emitted from vehicle exhaust and power plants. It is a highly reactive compound that can easily react with other pollutants to form ozone and other harmful compounds. is also a major contributor to the formation of acid rain and can cause respiratory problems in humans.
Ozone is another primary pollutant that is formed in the presence of sunlight, but it is not directly emitted into the atmosphere. Instead, it is formed through a complex series of chemical reactions involving nitrogen oxides and VOCs. Methane and carbon dioxide are greenhouse gases that contribute to global warming, but they are not primary pollutants that contribute to the formation of smog.
Overall, nitrogen dioxide is a primary pollutant that plays a significant role in the formation of smog and other types of air pollution. Reducing emissions of from vehicles, power plants, and other sources can help to improve air quality and reduce the negative health impacts of smog.