http://www.cbsnews.com/news/air-pollution-dangerously-high-for-almost-half-of-us/

A little under 50 percent of Americans are living in unhealthy air conditions. This number has increased five percent from last year, 42 to 47 percent. The five communities with the worst air pollution in the United States were all in the state of California.  Los Angeles-Long Beach had the highest ozone levels, while Fresno-Madera was found to have the most particle pollution. Both of these cities are located in California which is particularly alarming as Californians. This being said, things are not all bad as Salinas California is the least polluted city in the United States.

 This article gave lots of statistics on the health of the air in the United States, particularly the odd trends in California. California has both the five highest rates of air pollution, and the lowest overall rate. This report also goes to scare Americans as over 140 million Americans live in areas with high ozone layers. High ozone layers puts people at risk of premature death, aggravated asthma, difficulty breathing and future cardiovascular problems. This report further goes to show how American cities’ pollution levels have changed throughout the last four years and shows both many promising positives and alarming negatives.

“Air Pollution Dangerously High for Almost Half of U.S., American Lung Association Reports.” CBSNews. CBS Interactive, n.d. Web. 21 Nov. 2014.