Learn how air pollution can harm your health and the environment, and what EPA is doing to protect the air we breathe.

The Plain English Guide to the Clean Air Act provides a brief introduction to the 1990 Clean Air Act.

Reduced ozone levels as a result of ozone depletion mean less protection from the sun’s rays and more exposure to UVB radiation at the Earth’s surface.

In the atmosphere, methyl bromide depletes the ozone layer and allows increased ultraviolet radiation to reach the earth’s surface.

New production and import of most HCFCs were phased out as of 2020.

Explore how successful ozone layer protection is a part of our everyday life through this interactive webpage.