Unit 8: Pollution: module 4.45: reduction of air pollution prevention conservation regulationExample: vapor recovery nozzle: reduces VOC emissions Screenshot 2026-02-11 at 1.53.31 PM.png Catalytic converters:  Screenshot 2026-02-11 at 1.54.39 PM.png Smokestack scrubber: Note that ash at the bottom is toxic, and must be removed to a toxic waste dump Screenshot 2026-02-11 at 1.55.06 PM.png Migrated from Apple Server Wiki. Original page ID: Q700A7E7_