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According to EPA’s AIRNow Program, the summer of 2009 had better ozone air quality than years past. Many U.S. cities experienced at least 80 percent fewer days when ozone air pollution reached levels that were Unhealthy for Sensitive Groups (USG) or higher on the Air Quality Index. This trend was especially apparent in the Midwest, [...]

On warm days, outdoor air pollution concentrations often rise to levels that can impact our health. But did you know that air pollution inside can be worse than air pollution outside? The air we breathe inside a sealed building can be 25 to 100 percent more polluted than the air outside. The U.S. Environmental Protection [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

Just like a recipe, the atmosphere needs all the right ingredients to make ground-level ozone – a harmful air pollutant that is common during the summer months.  When the temperature rises and the sun is shining, heat and sunlight mix with nitrogen oxides and volatile organic compounds that come from car exhaust, power plants, refineries, [...]

The Texas Transportation Institute (TTI) recently released its 2009 Urban Mobility Report which tracks U.S. traffic patterns. Based on 2007 data, TTI estimates that sitting in traffic cost Americans 87 billion dollars in wasted fuel and lost productivity in just one year.  Sacramento’s annual delay time for travelers during peak traffic was about 39 hours [...]

The Texas Transportation Institute (TTI) recently released its 2009 Urban Mobility Report which tracks U.S. traffic patterns. Based on 2007 data, TTI estimates that sitting in traffic cost Americans 87 billion dollars in wasted fuel and lost productivity in just one year.  Denver’s annual delay time for travelers during peak traffic was about 38 hours [...]

The Texas Transportation Institute (TTI) recently released its 2009 Urban Mobility Report which tracks U.S. traffic patterns. Based on 2007 data, TTI estimates that sitting in traffic cost Americans 87 billion dollars in wasted fuel and lost productivity in just one year.  Milwaukee’s annual delay time for travelers during peak traffic was about 18 hours [...]

The Texas Transportation Institute (TTI) recently released its 2009 Urban Mobility Report which tracks U.S. traffic patterns. Based on 2007 data, TTI estimates that sitting in traffic cost Americans 87 billion dollars in wasted fuel and lost productivity in just one year.  Baltimore’s annual delay time for travelers during peak traffic was about 44 hours [...]