7 catalysts and associated control and treatment systems, namely, catalytic converters, gas sensors, and injectors to introduce reactants into the exhaust stream being treated, and associated controls, all used to reduce pollutants in the engine emissions of power-generating gas-fueled turbines and automotive vehicles, namely, gasoline and diesel engine passenger cars, light duty trucks, sport utility vehicles, heavy duty trucks and buses, aircraft, boats and ships, locomotives, off-road vehicles, jet engines and internal combustion engines generally; catalyst supports and catalysts and associated control and treatment systems, namely, catalytic beds and catalytic structures, gas sensors associated therewith, injectors to introduce reactants into the process stream being treated, and associated controls, all used in order to reduce emissions from industrial and food-cooking processes which emit pollutants, namely, volatile organic compounds, ozone, hydrocarbons, carbon monoxide and/or nitrogen oxides, and catalysts and associated control and treatment systems, namely, catalytic converters, gas sensors and associated controls used to treat aircraft cabin air for the reduction of ozone