Civil Engineering > GATE 2026 SET-2 > Air Pollution
Column I presents common air pollutants, and column II presents treatment technologies commonly employed to control air pollutants.
The option that CORRECTLY matches the air pollutant with its treatment technology is:
| Air Pollutant | Treatment Technology |
|---|---|
| 1. Dust (size 5–25 µm) | P. Cyclone separator |
| 2. Carbon monoxide (CO) | S. Catalytic converter |
| 3. Sulfur dioxide (SO2) | Q. Wet lime-water scrubber |
| 4. Fly ash (size < 2.5 µm) | R. Electrostatic precipitator |
Correct : d
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