Electromagnetic waves called UV radiation. Ozone layer blocks out most UV radiation by absorbing it and that is important, because UV radiation can cause skin cancer. To prevent that you also shoud use sunscreen and sunglasses. Use this website and register you can learn a lot about stuff related to these things - jason.org
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 is harmful at ground level. It acts as a pollutant.
The ozone layer is most harmful in the stratosphere, the second layer of the atmosphere. It helps to protect Earth by absorbing harmful ultraviolet radiation from the sun, but ground-level ozone can be harmful to human health as a pollutant in the troposphere.
Ground level ozone is harmful as it can cause respiratory issues, especially for vulnerable populations like children and the elderly. Ozone high above Earth, in the stratosphere, is beneficial as it forms the ozone layer that protects us from harmful UV radiation.
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 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.
Ozone layer cannot be harmful. It protects us from harmful UV rays of the sun.
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.
Ozone at land is harmful. It acts as a pollutant.
Ozone in upper atmosphere is not harmful. No harmful effects are associated with it.
The ozone layer is most harmful in the stratosphere, the second layer of the atmosphere. It helps to protect Earth by absorbing harmful ultraviolet radiation from the sun, but ground-level ozone can be harmful to human health as a pollutant in the troposphere.