Smog City is an interactive air pollution simulator that shows how your choices, environmental factors, and land use contribute to air pollution. In Smog City you're in control so your visit can be a healthy or unhealthy experience depending on the decisions you make. You'll see how ground-level ozone, the biggest part of summertime smog, increases or decreases when you spend a day in Smog City. And since ozone can irritate respiratory systems, cause breathing difficulty, coughing, and chest pain, knowing how and why ozone forms and what you can do about it is important to the residents of Smog City and everyone else on the planet.

Cautionary Note:
Relationships between ozone, emissions, and weather conditions are very complex. Because Smog City's relationships are based on a simplified model of complex atmospheric processes in Sacramento, California, there is no guarantee that they are scientifically accurate for this or other regions. Results only illustrate general behavior of air pollution processes, and cannot be used for any quantitative purpose or in detailed planning of future control strategies.

Copyright 1999 Sacramento Metropolitan Air Quality Management District (SMAQMD). All rights reserved. Reproduction in whole or in part in any form or medium without express written permission of SMAQMD is prohibited. Smog City and the Smog City logo are trademarks of SMAQMD.