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Era of large air purifiers
Scientific India
|November - December 2021
Pollution is nothing but some un-wanted or un-acceptable level of Pan item. Pollution in all its forms in air, water and land have reached to alarming levels and people are feeling its harmful health effects. Though, sound pollution, corruption, loss of humanity due to changing thoughts/mind sets, growing population, growing unemployment, increasing hunger/malnutrition, widening economical, academic & digital divide/gap of society, and many more are no way less than air, water and land pollution which are affecting the mankind severely. The present way of civilization/modernization based on technology is said to be the root cause of all these various types of pollution. Though, we all at individual level are responsible for each type of pollution but we always prefer to point fingers towards others and rest hope on others to find the solution for all the evils including pollution. Developing technology to tackle or control pollution is way behind than the need to “nip the evil in the bud”. Thus, there is great need to control, minimize or stop all such activities which leads to the generation of pollution but without scarifying our comforts based on technological development, we want to develop pollution control solutions either towards post mitigation of pollution or making pollution controlled technological assisted development.

Air and water pollution in the capital of country (Delhi) has become a burning topic at the present. When, chemical factories nearby are blamed for the water pollution, burning of stubble by farmers is mostly blamed for the air pollution. Supreme Court has taken a various serious view to the present situation of air pollution in the capital and has asked the state governments and central government to consider the situation as an emergency and come up with viable air pollution control methods. Most of the air pollution before was assigned by the pollution experts only to stubble burning in nearby areas but now after scolding by the Supreme court, the experts have changed their opinion that the contribution of stubble burning in air pollution is only 4-10% where as the major part of pollution comes from vehicles, house-holds, industries and construction works etc. At one hand, stubble burning should be put an end by giving viable alternatives to farmers who want to make the field ready (free from stubble) for next crop not only within short time span but also when there is shortage of labour, costly machinery, no-use for stubble, and no local industries based on stubble. On the other hand, there is also need to control other pollution generic activities by forcing them to adhere to application of pollution control techniques.
Air purifying towers
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