Question

state the reason dust is a pollutant

Answer 1

because It is made up of unburnt carbon particles, skin cells, pollen grins, hair, fine grains of minerals, thin fibres, soil particles etc. All these particles of dustmake it a pollutant. Dust causesrespiratory diseases, skin diseases etc. ... Also, dust pollute the environment hence known as pollutant.

Answer 2

Dust causes respiratory disease, skin disease....
At the result dust pollute the environment hence it known as pollutant....