During a summer day, low-level ozone can become a problem leading to poor air quality. This is not the good type of ozone found in the upper parts of the atmosphere. That ozone blocks the sun's harmful rays.
This is ozone near the earth's surface that is produced by pollution from cars and industry. On a hot, dry summer day, the air can become stagnant and air pollution becomes trapped near the surface. This decreases the air quality and can cause breathing difficulties especially for people with respiratory problems.
Because the pollution is primarily caused by car exhaust and industry, larger cities such as Houston and Dallas have a much larger air quality problem than we do in East Texas. In fact, the Texas Commission of Environmental Quality (TCEQ) does not monitor ozone levels for the Lufkin-Nacogdoches area.
Cities monitoried by TCEQ They include Houston, Dallas, Tyler, and Beaumont. The levels in these cities are not representative of the air quality in our region of East Texas.