Question

The smoke and dust particles are not the cause of air pollution.

Answer 1

Particulate matter is the sum of all solid and liquid particles suspended in air, many of which are hazardous. This complex mixture contains for instance dust, pollen, soot, smoke, and liquid droplets.

These particles come in many different size ranges such as coarse, fine and ultrafine. They also vary in composition and origin.

They are either directly emitted into the air by sources such as combustion processes and windblown dust, or formed in the atmosphere by transformation of emitted gases such as sulphur dioxide.

Hence, The smoke and dust particles are causes of air pollution.