Outdoor Air - Transportation Sources
Reducing emissions from cars, trucks, buses, planes, and other mobile sources also can contribute to improved air quality in communities. Check out these sites for more information:
Other links:- Clean School Bus USA - Provides general information about how EPA is working to reduce diesel exhaust and other air pollution from diesel school buses.
- Fuel Savings from Reduced School Bus Idling Calculator - Offers a simple calculator to determine the fuel savings and fuel cost reduction by reducing school bus idling times.
- Mobile Source Air Toxics - Presents information on mobile source air toxics and strategies used to reduce the risk to the public from these pollutants.
- Transportation and Air Quality Overview - Provides links to transportation and air quality information that may be of interest to citizens and consumers.
- Retrofit Calculator - This custom application allows anyone to characterize a fleet and calculate the tons of emission reductions a diesel retrofit program will generate.
- Business Benefits Calculator - This calculator enables businesses to estimate the financial, environmental, traffic-related, and other benefits of joining the Best Workplaces for Commuters program.
- National Clean Diesel Campaign - This campaign will work to aggressively reduce pollution emitted from diesel engines through the implementation of varied control strategies and the involvement of national, state, and local partners.
- West Coast Collaborative - This public-private partnership works to reduce diesel emissions along the West Coast. It is the first pilot of EPA's Clean Diesel Campaign.

- Mobile sources emit a variety of air toxics. We have developed pages related to:
![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif)