Unfortunately we don't know much about ozone. We would greatly appreciate it if you could send us some information on the ozone layer. Please answer as soon as possible. Our project is due Friday. Thank you very much.
Ordinary oxygen has two atoms.
Here you'll find links to a lot of information. High in the air, in the stratosphere, it absorbs ultraviolet radiation from the sun. This means ozone is good up there because the ultraviolet radiation is harmful. But, near the ground, ozone is a key part of photochemical smog, which can be unhealthy. In other words, near the ground, ozone is harmful.