Question

Justify, ‘dust is pollutant’.

Answer 1

Hint: Pollutant are the substances which when introduced in the environment, shows their harmful effect on other resources of the environments. They are the pollution causing agents which causes water pollution when added to water bodies, pollutes air when added to the atmosphere.

Complete step by step answer: Dusts are the tiny particles of solids and liquids suspended in air. It is also known as particulate matter (PM). They are the result of soil lifting by wind, volcanic eruption and some construction works for the development.
In order to categorize dust as a pollutant it should obey some criteria:
On inhaling dust, the person should feel discomfort including symptoms of cold, cough, and allergic reactions in the body.
If present on plants it could block the exchange of gases, through creating blockage of stomata.
Effect of dust on humans:
Unwanted dust in nature will be harmful to humans as it causes:
-Irritation
-Allergic reaction
-Eye problems
-Affecting lungs
And some other serious diseases if dust contains some toxic metals.
-Effect on agriculture:
-Unwanted dust in the air not only affect humans but also affect the agriculture field:
-reduces crop yields
-reduces photosynthetic activity
- leads to loss of plant tissue
-Leads to increase in soil erosion
Thus will the discussed effects of dust on humans and plants, it can be considered as a pollutant.

Note: In order to avoid ourselves from dust:
-Proper cleaning should be done
-Sheets and fabrics should be cleaned properly.
-Burning of toxics metals should be banned
-Release of smoke from factories should be minimized
-Use of air purifiers should be done
-Wherever possible masks should be worn.