Question

From where does dust enter the air?

Answer 1

Dust:

• Dust is not a pollution of air until and unless it becomes more than is a need in an environment. Dust particles help in the scattering of light and also in the propagation of sound.
• Although a dust particle in the environment is very important once it exceeds its limit it becomes a problem as it causes a hazzyness of the environment and also affects our respiratory organs by stocking in the air passes.

Sources: Dust in the air is added from different sources and also the presence of dust varies from place to place and from time to time. Some of the sources of dust are as follows:

• It consists of particles in the atmosphere that come from various sources to Earth such as soil lifted by wind (an aeolian process), volcanic eruptions, and pollution.
• Dust in the air is coming from the blowing of the wind which shifted dry soil and other particles from place to place.
• Dust in the air may be added from traffic which releases different kinds of gases and also dust particles from vehicles.
• Dust can be also added to the environment by dusting at homes which releases dust frequently.
• Earthmoving operations, construction activities, and agricultural practices.