Determination of ozone variation along I-10 in Houston is necessary for making environmental decisions especially improvement of air quality in the city. Air particles will be collected along I-10 to see what areas in Houston are most contaminated with “bad” ozone. Petroleum jelly and plastic discs will be used to collect air particles on a street level basis. Air particles will be collected in 6 different locations on I-10, specifically with major intersections. Samples will be recorded on a weekly basis and gas chromatography will be used to determine the concentration of ozone. The results of the study will be helpful for the public to learn what areas are most contaminated with “bad” ozone and how it is harmful.