Sunlight exists, but where the sun may be in the afternoon sky is anyone's guess. The sight and feeling of the city's air pollution is as charming as a wild pig with a toothache. I've never seen so many red eyes and heard so many raspy voices. Unfortunately, air pollution is not confined to a couple of cities with bad traffic problems and factories with smoke stacks. Air pollution comes from many sources, including factories, businesses, and some consumer products but it mostly comes from cars, trucks and buses.
Automobiles are the source of two of our worst air pollutants emitting ozone and carbon monoxide.
Ozone irritates your lungs and eyes. Carbon monoxide hampers your blood's ability to carry oxygen to your brain. Our nation's clean air standards have helped reduce pollution. But Americans own more cars and drive them more today than ever before. This creates new challenges for growing metropolitan areas such as those in South Texas.