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Important Facts for Air Quality - Ozone Level

Definition

Annual number of days or Person-days with maximum 8-hour average ozone concentration over the National Ambient Air Quality Standard

Numerator

Annual Number of Days Exceeding Ozone Standard

Denominator

Not applicable

Why Is This Important?

According to the published literature, air pollution has been associated with premature death; increased rates of hospitalization for respiratory and cardiovascular conditions; adverse birth outcomes; and lung cancer (Cannon 1990, Dockery and Pope 1994, Schwartz 1999). Air pollution places a large economic burden on the country. In a report prepared for the American Lung Association, Cannon (1990) estimated that air pollution related illness costs approximately $100 billion dollars (1988 dollars) each year in the United States, with an estimated number of excess deaths ranging from 50,000 to 100,000 per year (Dockery and Pope 1994). More than half of the U.S. population, approximately 159 million Americans, live in counties with unhealthy levels of air pollution in the form of either ozone or particulate matter (American Lung Association 2004).

Other Objectives

CDC Environmental Public Health Tracking, Nationally Consistent Data and Measures (EPHT NCDM)
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Content updated: Mon, 1 Feb 2016 09:27:28 MST