On the road  to cleaner air.

What causes ground-level ozone?

Ground-level ozone, a primary component of smog, is one of the most common air pollutants in the country.  Many sources release the chemicals that form ozone including vehicle exhaust, gasoline and paint fumes, and power plant emissions.  Because more sources exist in urban areas, ozone tends to be worse in large cities. However, ozone is easily carried by wind and can travel great distances, also affecting downwind rural areas.

How does ozone affect health?

Ozone causes breathing difficulties and is particularly harmful to children, people who are active outdoors, and those with breathing ailments such as asthma. Breathing ozone may cause coughing, throat irritation, wheezing, and shortness of breath.   Avoid the health consequences of ozone by reviewing the daily ozone forecast and minimizing heavy outdoor activities on air alert days.

Clear The Air

In the San Antonio region, vehicles are a major source of the chemicals that form ground-level ozone. These chemicals enter the air when vehicles are refueled and during their operation (as fuel is being burned.)
Take advantage of the many operation and maintenance tips listed on this site to improve your gas mileage, save money, and reduce pollution. When it's time to replace your vehicle, consider a more fuel-efficient model.
Operations & Maintenance Tips
Commute Solutions
Alamo Area Clean Cities
Fuel Economy
Alternative Fuels Data Center

Energy Tips that Save Money

Electricity lights our homes, powers our appliances, and makes our lives more comfortable. But much of the electricity we rely on is generated by burning fuels that add pollutants to the air. By using less electricity, you not only cut your energy costs, but also help the air and the environment.

CPS Energy Savers
SECO: Energy Efficiency
US Department of Energy: Savings
Consumer Energy Center