The common air pollutants are:

• Particulate matter (PM10 and PM2.
• Ozone (O3)
• Nitrogen dioxide (NO2)
• Carbon monoxide (CO)
• Sulphur dioxide (SO2)

Criteria pollutants

• Carbon monoxide.
• Lead.
• Nitrogen dioxide.
• Ozone.
• Particles.
• Sulfur dioxide.

Sources and Effects of 10 Common Air Pollutants

1. Carbon Monoxide (CO) Carbon Monoxide is a highly toxic and dangerous pollutant, infamous for its lack of identifying color and smell.
2. Lead (Pb) Lead has long been known to be a dangerous substance.
3. Ozone (O3)
4. Nitrogen Dioxide (NO2)
5. Sulfur Dioxide (SO2)
6. Particulate Matter (PM)
7. Carbon Dioxide.
8. Methane.

5 Major Outdoor Air Pollutants

• Ozone (O3)
• Nitrogen Oxides (NOx)
• Carbon Monoxide (CO)
• Sulfur Dioxide (SO2)
• Particulate Matter (PM10 and PM2.5)

Definition. Chemical pollution occurs when chemicals resulting from human activities enter the environment, contaminating air, water or soil. Acid rain, greenhouse gases and ozone are all examples of chemical pollution.

The gaseous criteria air pollutants of primary concern in urban settings include sulfur dioxide, nitrogen dioxide, and carbon monoxide; these are emitted directly into the air from fossil fuels such as fuel oil, gasoline, and natural gas that are burned in power plants, automobiles, and other combustion sources.

Air pollution refers to any physical, chemical or biological change in the air. It is the contamination of air by harmful gases, dust and smoke which affects plants, animals and humans drastically. An increase or decrease in the composition of these gases is harmful to survival.

Air pollution is known to cause irritation in the eyes, lungs, nose, and throat. It creates respiratory problems and exacerbates existing conditions such as asthma and emphysema. When continually exposed to air pollution, humans become at higher risk for cardiovascular disease.