Analysis of local ambient air measurements data since 1983 indicate that Wichita-Sedgwick County will be closer to exceeding the new standards but should remain in attainment. Sampling for oxides of nitrogen is scheduled to resume in 1999 since these compounds are involved in the formation of ozone. The pollutants present in urban air come from many sources. The major contributors are mobile sources such as automobiles, trucks, buses, and trains. Risk Factors Air pollution is one of the greatest known environmental risks to human health.
Age appears to be the main factor that disproportionately affects the population.
The young and the elderly are more at risk due to physical factors associated with their overall health. In addition, animal studies have raised concerns that ozone may reduce our ability to fight respiratory infection and that frequent exposure may cause permanent lung damage. Breathing the air in urban areas is a risk factor for all the above. This is probably due to the mix of manmade pollutants typical of urban air. In addition, persons with asthma, allergies, emphysema, and other respiratory problems are more at risk than the general population.