Caption: Continent with smokestacks looking at continent with wind power
Artist: Janet Street
Release: Not Applicable
File Size: 49.49 MB

Caption: Baghouse employing an array of fabric bags for filtering the airstream.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 41.86 MB

Caption: Cyclone collectors remove relatively coarse particulates from the air. Small cyclones are often installed on mobile sources.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 28.17 MB

Caption: Group of people marching under a banner for public transportation.
Artist: Cost.
Release: Not Applicable
File Size: 47.19 MB

Caption: Wet scrubber using a limestone slurry to remove sulfur dioxide from flue gas.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 34.10 MB