Apes Unit 9: Stratospheric Ozone

These flashcards cover key concepts regarding stratospheric ozone, its formation, the impact of CFCs, and related health and ecological effects.

Stratospheric Ozone

Ozone in the stratosphere that blocks about 95% of harmful UV radiation from reaching the Earth.

Chlorofluorocarbons (CFCs)

Synthetic compounds used in aerosol sprays, solvents, and refrigerants that deplete stratospheric ozone.

Ozone Depletion

The reduction of ozone in the stratosphere, especially significant during Antarctic spring due to CFCs.

Ultraviolet Radiation (UV)

A type of solar radiation that is absorbed by stratospheric ozone; includes UV-A, UV-B, and UV-C.

Montreal Protocol

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

Ozone Formation Reaction

The natural process where O2 reacts with UV light to form ozone: O2 + UV → O + O; O + O2 → O3.

Ozone Destruction Mechanism

The process where chlorine atoms released from CFCs react with ozone, leading to its breakdown: Cl + O3 → ClO + O2.

Human Health Impact of UV Radiation

Increased UV radiation can lead to higher incidences of skin cancer and eye damage.

Ecosystem Impact of Ozone Depletion

Increased UV radiation can cause ecosystem collapse by harming phytoplankton and other primary producers.

Tropospheric Ozone Formation

Ozone that forms in the troposphere as a secondary pollutant from human activities like burning fossil fuels.