Why is asthma prevalence higher in african american/black and other minority populations?

See below: Probably due to a variety of social factors: disparities in health care access and communication; neighborhood social structure; and environmental effects of living in low quality living conditions.
Numerous reasons. Aside from genetic, allergies, etc there are links to inner city living, socioeconomics , etc. The issue of "other minorities" must be defined. Though people of puerto rican descent have a high degree of asthma, hispanics as a whole do not.