Stratospheric Ozone Questions

Front

What is the ozone layer?

Back

A region of Earth's stratosphere that contains a high concentration of ozone (O3) and protects living organisms from harmful ultraviolet (UV) radiation.

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When is the ozone hole largest?

Back

Early Antarctic spring.

Front

What are chlorofluorocarbons (CFCs)?

Back

Chemical compounds used in refrigeration, air conditioning, and aerosol propellants that deplete the ozone layer.

Front

What is the Montreal Protocol?

Back

An international treaty designed to phase out the production and consumption of ozone-depleting substances, including CFCs.

Front

What are the effects of UV rays on human health?

Back

Increased risk of skin cancer, cataracts, and weakened immune system.

Front

What causes the depletion of the ozone layer?

Back

Primarily caused by chlorofluorocarbons (CFCs) and other ozone-depleting substances.

Front

What is the role of the ozone layer?

Back

To absorb the majority of the sun's harmful ultraviolet (UV) radiation.

Front

What are some common sources of CFCs?

Back

Spray cans, refrigerants, and foam insulation.

Front

What is the difference between the ozone layer and ground-level ozone?

Back

The ozone layer is found in the stratosphere and protects against UV rays, while ground-level ozone is a harmful air pollutant formed by chemical reactions in the atmosphere.

Front

What is the significance of the Vienna Convention?

Back

An international agreement that laid the groundwork for the Montreal Protocol to protect the ozone layer.