Be Resource Wise Ozone, a colorless gas, is the main component of smog. Ozone cannot be attributed to any one source because it is not emitted directly into the air. All sectors of our society contribute to the ozone problem-and all have contributed in some way to help solve it.
Motor vehicles emit both nitrogen oxides and VOCs.
However, we're driving our cars more than ever before. Many large and small industries emit VOCs in their industrial processes. They have also faced stricter controls and reduced emissions significantly in recent years. Industry sources, especially utilities, also emit nitrogen oxides that contribute to ozone formation. As a consumer, you can help reduce nitrogen oxide emissions by using electricity more carefully.