Not Now. Established in 1989, the Clearwater Volunteer Fire Department serves the Clearwater (Tennessee) community and surrounding area with support. 1,185 people like this and 1,166 people follow this.
Pathologic changes in chronic obstructive pulmonary disease (COPD) occur in the large (central) airways, the small (peripheral) bronchioles, and the lung parenchyma. Most cases of COPD are the result of exposure to noxious stimuli, most often cigarette smoke.
1 The lung tissue is slowly destroyed, thus decreasing the ability of the lungs to perform appropriately.  Air pollution acts in a similar manner to cigarette smoke. The pollutants cause inflammation in the airways, leading to the destruction of lung tissue.