GENERAL KNOWLEDGE

Detailed explanation-1: -Particulate matter (PM), nitrogen oxides (NOx), and carbon dioxides (CO2) are mainly generated from vehicle emissions and fuel consumption and are the main materials causing outdoor air pollution. Exposure to polluted outdoor air has been proven to be harmful to human eyes.

Detailed explanation-2: -Nitrogen Dioxide Household sources of nitrogen oxides (NOx) include equipment that burn fuels such as furnaces, fireplaces and gas stoves and ovens. Exposure to nitrogen dioxide can irritate airways and aggravate respiratory diseases.

Detailed explanation-3: -Emissions from transportation vehicles are a major source of pollution, especially in urban areas. They are major sources of both local urban pollutants, such as oxides of nitrogen, hydrocarbons, and carbon monoxide, and global greenhouse emissions, like.CO2 (They are a major source of noise pollution as well.)

Detailed explanation-4: -Pollutants with the strongest evidence for adverse effects on respiratory health include particulate matter, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide.

Detailed explanation-5: -While there are many forms of air pollution, two main pollutants are particularly important in urban environments: ambient (outdoor) fine particle air pollution (PM2.5) and nitrogen dioxide (NO2). Ambient PM2.5 comes from vehicle emissions, coal-burning power plants, industrial emissions, and other sources.