Utah Department of Environmental Quality

Sponsored by the Utah Department
of Environmental Quality

Tips for your Commute

Emissions from motor vehicles are the primary source of ozone-causing pollutants, accounting for almost half of our air pollution. Because heat and sunlight are important factors in ozone formation, ozone pollution generally peaks during the months of April through October, on hot, sunny days with little or no wind and no precipitation. On these days, it's particularly important to reduce how much you drive. Travel to work by taking public transportation, share a ride, walk or bike. Encourage your employer to become part of Best Workplaces for Commuters, a recognition and partnership program sponsored by EPA and the U.S. Department of Transportation that encourages employers to offer their employees an outstanding level of commuter benefits such as tax-free transit passes, vanpool benefits, or telecommuting. If you want to know how your organization can participate, email the program, call the Best Workplaces Hotline at 1-888-856-3131, or visit the Best Workplaces for Commuters Web site at http://www.bwc.gov

Health effects of ozone pollution

Did you know that 10 to 20 percent of all summertime respiratory-related hospital visits in some areas of the U.S. are associated with ozone pollution? Motor vehicle exhaust, gasoline vapors, and chemical solvents are major sources of ozone, which usually forms in hot weather. Ozone pollution can affect anyone who spends time outdoors in the summer, particularly children, the elderly, outdoor workers and people exercising.

Repeated exposure to ozone pollution may cause permanent damage to the lungs. Even low ozone levels can trigger health problems in some people when it is inhaled; these can include chest pains, coughing, nausea, throat irritation, and congestion.

What You Can Do:

Use Alternative Transportation

Green Vehicle Guide

Smog is at its highest levels during the summer. Tailpipe emissions from cars and trucks account for almost half of the air pollution in the United States. You may be surprised to know that you have cleaner more fuel-efficient choices in any vehicle size you need, even an SUV. Find out for yourself. Go to the Green Vehicle Guide to find the cleanest, most fuel efficient vehicle that meets your needs. http://www.epa.gov/greenvehicles

Fuel Economy

To save gasoline and money, keep your car tuned, your tires properly inflated, and drive carefully. See the fuel economy estimates for all cars and light trucks going back to 1985. http://www.fueleconomy.gov/ 

Refueling your vehicle

Gasoline vapors are harmful to you and the environment. Not only are they toxic to breathe, they contribute to ozone formation in the atmosphere. Since gasoline vapor production increases during the hot summer months, it is important to be careful when refueling your vehicle. Here are some simple measures you can take at the gas station:

Maintaining Your Vehicle - Watch your dashboard light to prevent pollution

This summer, help prevent pollution by keeping your car in tip-top shape. If your car or light truck is a 1996 or later model, it is equipped with a sophisticated computer called the "Onboard Diagnostic" (or OBD) system that helps your engine to operate at peak efficiency and will alert you to any potential problems that could cause it to work harder, wear out faster and pollute more. If the OBD system detects problems, it will trigger a "Check Engine" light. Repair shops are able to check the computer to see precisely what is causing the problem, and can then make effective repairs.

During your summer vacation trips, if your "Check Engine" light comes on and stays on, don't panic. You and your car are not in immediate danger. The first thing you should do is check that your fuel cap is secured tightly: loose gas caps cause gasoline vapor emissions which trigger the light. If the cap is tight and the light still stays on, try to arrange for service when convenient. If the light is flashing on and off, this indicates engine misfire, a condition that can harm the engine. In this case, you can still drive safely but you should minimize your time on the road and avoid driving at high speed or carrying excess weight such as towing or carrying heavy equipment.

Making sure you service your vehicle whenever the Check Engine light is illuminated can help you:

Visit http://www.epa.gov/obd/questions.htm for answers to questions about OBD.

Recharging Your Car's Air Conditioner with Refrigerant

When servicing automotive air-conditioning systems, vehicle owners generally have several options to recharge a/c systems with refrigerant. One option is to top-off your car's system with refrigerant, and another is to evacuate and recharge the system. Both of these options will provide cool air in the passenger compartment for some period of time. http://www.epa.gov/ozone/title6/609/recharge.html