Linked from
The 18 pages that link to Catalytic converter, each with the reason it gives.
Air pollutionRelated: It reduces several pollutants released by gasoline-powered vehicles.
PlatinumRelated: Platinum helps catalyze the reactions that reduce vehicle exhaust pollutants.
Catalytic cycleRelated: Its catalyst repeatedly transforms exhaust pollutants at the surface.
VanadiumRelated: Vanadium compounds serve as catalysts in some exhaust-treatment systems.
SmogRelated: It reduces nitrogen oxides and hydrocarbons that feed photochemical smog.
Platinum groupRelated: Platinum, palladium, and rhodium catalyze the key exhaust-cleanup reactions.