1 Air pollution acts in a similar manner to cigarette smoke. 2  The pollutants cause inflammation in the airways, leading to the destruction of lung tissue. 3  Abnormal airway reactivity, such as bronchial asthma, has been shown to be a risk factor for the development of emphysema.
Luis Rivera (III) Luis Rivera is an actor, known for Bad Man's River (1971), Guns of the Magnificent Seven (1969) and Custer of the West (1967). See full bio Â».
Sesame Street Delgado first appeared as Luis on Sesame Street in 1971, making him both the first human to appear on the showâbefore him, it was 100% puppetsâand the Mexican-American actor with the longest time playing a single role on a regular TV series.