2007-2009
The State of the Air 2011 report looks at levels of ozone and particle pollution found in monitoring sites across the United States in 2007, 2008, and 2009. The report uses the most current quality-assured nationwide data available for these analyses. The topics below will link you to more information.
- Year-round Particle Pollution—Information about changes in the average particle levels year-round in 2007-2009.
- Short-term Particle Pollution—Information about changes in spikes in particle levels during 2007-2009.
- Ozone Pollution—Information about changes in the days with unhealthy levels of ozone during 2007-2009.
- Cleanest Cities—Two cities made the cleanest list in all three categories.
- People at Risk—How many people live where pollution levels are unhealthy?
- What Needs to be Done to Get Healthy Air—What do we need to do as a nation?
- What You Can Do—How can you help clean up the air?
FACT: Air pollution is a serious health threat. It sends people to the hospital, shapes how kids’ lungs develop, and can even be deadly.




