Consider the following statements They are designed to work as an active pollutant removal Smog towe...........

Environment and Ecology Air Pollution

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Consider the following statements

They are designed to work as an active pollutant removal.
Smog tower can reduce particulate matter by 50% in the area.

Select the correct statement.

1 only

2 only

Both

None

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Explanation:

A smog tower is a structure designed to work as a large-scale air purifier.

How it works?

This structure fitted with multiple layers of filters which trap fine dust particles suspended in the air as it passes through them. Air is drawn through fans installed at the top of the tower, passed through filters, and then released near the ground.
Experts have said that the towers would create “clean air zones” in the city. A tower would reduce 50% of the particulate matter load — fine dust particles suspended in the air — in an area of 1 kilometre in the direction of the wind, as well as 200 metres each along the sides of the tower and against the direction of the wind.

WAYU is developed by Council of Scientific and Industrial Research – National Environmental Engineering Research Institute (CSIR-NEERI) as a part of Technology Development Project funded by Department of Science and Technology. The device has the capacity to purify air in an area of 500 meter square.

Hence only statement 2nd is correct.