An ozone hole is. Just regular ozone is good for everything including you and me. The ozone is made of three oxygen atoms and it helps protects the earth from harmful UV rays from the sun. When an ozone hole forms the sun is able to penetrate the earth with harmful uv rays causing a problem.
The depletion of ozone is harmful to plants. The UV can cause their death.
Plants absorb harmful gases like carbon dioxide, sulfur dioxide, and ozone through their leaves during photosynthesis. They help to purify the air by removing these pollutants and converting them into oxygen and other molecules that are essential for their growth.
Ozone in the lower atmosphere is harmful to plants and animals and the biosphere is where plants and animals live, so the more, the worse.
No ozone is not always harmful. the ozone at stratosphreric level is good.
Halons are harmful for ozone. They also react with ozone to deplete it.
Ozone in troposphere is harmful. It acts as a pollutant.
The harmful effects of ozone are seen at ground level. Ozone acts as a pollutant there.
Ozone layer cannot be harmful. It protects us from harmful UV rays of the sun.
Ozone is harmful at ground level. It acts as a pollutant.
The ozone is harmful not at stratosphere. It is harmful at some layer. Te layer is troposphere.
It is harmful at ozone layer. It is because this leads to depletion of ozone.
See "How can ozone be harmful and helpful?" in the "Related questions" section below.