Question

Respiratory disorders occur due to automobile exhaust because of the release of

• A. $CO$
• B. $N{O}_2$
• C. $C{O}_2$
• D. $O_3$

Answer 1

The correct option is A $CO$

Automobiles exhausts are one of the major sources of air pollution. The important pollutants are carbon monoxide, benzopyrene, lead, nitrogen oxides, sulphur compounds, and ammonia. Inhalation of automobile exhaust chokes the lungs and cause asthma. Carbon monoxide combines with the haemoglobin and forms carboxyhemoglobin and curtails the oxygen delivering capacity of the blood which may lead to severe consequences like death.

So, the correct answer is option A.