Air Pollutants Emitted by IC Engines

1.) Carbon monoxide :

CO is produced because of insufficient supply of air for combustion. CO has more affinity than oxygen for hemoglobin to carry O2 to the body tissues. Hence, it will affect the nervous system and vision, if the percentage of CO is more. Finally, it affects hearts.

2.) Oxides Of Nitrogen :

In high temperature, nitrogen reacts with oxygen and produces nitric oxide and nitrogen di oxide. They affect living organisms. They affect blood purification system. It may be mixed with moisture and produces dilute nitric acid in the heart and affects hearts.

3.) Hydrocarbons :

Hydrocarbon is produced due to incomplete combustion Hydrocarbon produces smog. This affects vision. Smog is the mixture on fog and smoke.

4.) Photo Chemical smog :

Some hydrocarbons and oxides of nitrogen in the exhausts reacts with atmospheric air in the presence of sunlight and produce photochemical smog. It damages the plant's life. It reduces the visibility. It produces eye irritation and affects the respiratory system of human beings.

5.) Smoke :

Smoke is produced because of insufficient mixing of fuel and air . It contains CO and Co2. When cold starting, blue white smoke is produced when more carbon particles are mixed with exhaust. Smog is produced by smoke. It causes irritation of the eyes, coughing , headache and vomiting.

6.) Lead :

Lead is poisonous. It is toxic air pollutant. It is produced from the combustion of gasoline. It affects liver and kidneys. It causes mental effects to children.

7.) Particulate :

Particulates are minute separate particles found in the air. They may be solid or liquid particles. The dust soot and fly ash are included in it. It causes respiratory diseases like bronchitis and lung cancer and allergic diseases.

8.) Sulphur Oxide :

Sulphur Oxide is produced if the fuel has Sulphur . It may damage the plants. It causes irritation to eye and throat and gives respiratory troubles to children. It corrodes materials.

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Mechinopedia For Mechanical Engineers

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