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Air Pollution Increases Blood Pressure

Cities With Greatest Air Pollution, 1999

City

Number of Days With Air Quality Index (AQI) Greater Than 100

Atlanta

69

Bakersfield, Calif.

94

Charlotte, N.C.

42

Fresno, Calif.

8oxville, Tenn.

62

Louisville, Ky.

44

Memphis, Tenn.

36

Nashville, Tenn.

45

Phoenix, Ariz.

37

Riverside/San Bernardino, Calif.

97

Sacramento, Calif.

48

Washington, D.C.

39

 

Source: EPA Office of Air and Radiation

 

 

The higher the Air Quality Index, the greater the level of air pollution and the danger to health. An AQI value of 100 corresponds to the level EPA has set to protect public health. If the AQI is above 100, the air is generally unhealthy for sensitive people.

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