Emphysema Causes. Cigarette smoking is by far the most dangerous behavior that causes people to develop emphysema, and it is also the most preventable cause. Other risk factors include a deficiency of an enzyme called alpha-1-antitrypsin, air pollution, airway reactivity, heredity, male sex, and age. The importance of cigarette smoking as a risk factor for developing emphysema cannot be overemphasized. Cigarette smoke contributes to this disease process in two ways.
Northern Virginia map - Virginia county, city, map with roads. Arlington County, Alexandria City. Arlington and the city of Alexandria Virginia are close to Washington DC, inside the beltway.
King George County is a county located in the Commonwealth of Virginia. As of the 2010 census, the population was 23,584. Its county seat is King George. The county's largest employer is the U.S. Naval Surface Warfare Center Dahlgren Division.