Ozone gas exists in several levels of the atmosphere. Lowlevel ozone can be harmful, but a layer of ozone high in the stratosphere shields us from harmful ultraviolet ( UV) rays in sunlight. Ultraviolet radiation is harmful to plants, animals and people. It can cause skin cancer, eye cataracts and other health problems. Because of ozone loss, it’s vital to apply suntan lotion whenever you’re in the sun, and wear sunglasses to protect your eyes.
adapted with permission from “50 Things You Should Know About the Environment” by Jen Green, © QEB Publishing Inc.