1. We were only taught " carbon monoxide and oxides of nitrogen ". 2. But at high temperatures, they undergo an endothermic reaction producing various oxides of nitrogen . 3. Oxidants include halogens, ozone, hydrogen peroxide and oxides of nitrogen . 4. Therefore, combustion is cool, giving few oxides of nitrogen . 5. Urea is introduced into the furnace to treat NOx ( Oxides of Nitrogen ) emissions. 6. He is an innovator in the area of chemical-luminescence instrumentation, particularly measurement of oxides of nitrogen . 7. There would be no oxides of nitrogen . 8. During sunny weather, oxides of nitrogen combine with hydrocarbons emitted from vehicles and power stations to form ozone. 9. To comply with the oxides of nitrogen ( NOx ); however, two-way converters are still used for lean-burn engines. 10. The cross-border currents carry oxides of nitrogen and other harmful elements that form ozone, a major component of smog.