UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
How it Works
Ask a Question
Search Topics
Our Scientists
Science Links
Contact Information
I never heard of ozone near the ground.Does it affect in any way or protect us in others? Is there any way we can improve it? If the higher ozone gets destroyed, can the lower one protect us?
Question Date: 1998-10-26
Answer 1:

Ozone is produced by cars and trucks in exhaust. It is considered a pollutant, since it harms the eyes and the lungs. It is known to cause irritation and stinging in the eyes and coughing. Some people believe that high ozone concentrations in the air can make asthma symptoms worse in people who suffer from lung problems, and over long times can cause lung cancer. Because it is one of the more harmful pollutants, emissions of ozone from automobiles are monitored and regulated by the EPA, just as carbon monoxide and other dangerous gases are regulated. Ozone pollution is usually only a problem in large, congested cities with lots of traffic.
Ozone produced as a pollutant cannot protect us from UV exposure since UV rays reach us from above, and ozone and other pollutants are produced close to the ground and disperse rapidly. The amount of ozone produced by pollution is much much less than the amount required to absorb harmful UV rays from the sun, and much less than the amount of "good ozone" in the upper atmosphere destroyed by CFC's every year.

Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2020 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use