Nitrogen oxides are formed in high-temperature engines and furnaces.

• Write equations for the formation of nitrogen oxides NO and NO₂.

Nitrogen oxides and ozone are pollutants in the troposphere that are associated with photochemical smog.

• Describe and write equations showing the role of nitrogen oxides in the formation of ozone in the troposphere.
• Describe the harmful effects of nitrogen oxides and ozone in the troposphere.
• Describe and write equations showing how catalytic converters reduce the quantities of nitrogen oxides generated by motor vehicles.

Animated Notes (use Microsoft Edge)

Video: Air Quality (skip to Chapter 4)

SASTA Workbook Q14-15