6.2_Stratospheric_Ozone__Ms._Zena_

Stratospheric Ozone

A key component of the atmospheric system that protects living systems from the harmful effects of UV radiation.

Dynamic Equilibrium

The natural balance of ozone production and destruction occurring in the stratosphere.

Ozone (O3)

A molecule composed of three oxygen atoms that plays a crucial role in protecting the Earth from UV radiation.

UV Radiation

Ultraviolet radiation emitted by the Sun, classified into UV-A, UV-B, and UV-C based on wavelength and energy.

Chlorofluorocarbons (CFCs)

Industrial compounds that cause ozone depletion, previously used as propellants in aerosol sprays and in refrigeration.

Ozone-Depleting Substances (ODSs)

Compounds that release chlorine or bromine atoms into the stratosphere, leading to ozone layer depletion.

Montreal Protocol

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

Beneficial Effects of UV Radiation

Includes the production of Vitamin D, treatment of skin diseases, and sterilization of air and water.

Harmful Effects of UV Radiation

Can cause genetic mutations, skin cancer, cataracts, and damage to ecosystems.

CFC Alternatives

Substitutes for CFCs like CO2, propane, or air, that have lesser environmental impacts.

Natural Sources of Chlorine

Includes volcanoes and forest fires that contribute to the ozone layer thinning in conjunction with human activities.

Halons

Fire extinguishing agents that release bromine atoms and contribute to ozone depletion.

Hydrochlorofluorocarbons (HCFCs)

Replacements for CFCs that are less damaging but still contribute to ozone depletion.

UV-C Radiation

The most energetic form of UV radiation, which is entirely absorbed by the ozone layer.

Polar Regions Ozone Concentration

Ozone tends to concentrate in the polar regions due to stratospheric winds transporting it from the equator.

Cataracts

A medical condition characterized by clouding of the lens of the eye, often associated with UV exposure.

Genetic Mutations

Alterations in DNA that can result from excessive UV exposure, leading to various health issues.

Photosynthesis Impact

Reduced productivity of forests and aquatic life due to increased UV radiation affecting living organisms.

Ozone Layer Depletion

The reduction of ozone in the stratosphere mainly caused by human-produced chemicals and pollutants.

Ozone Production Process

Free oxygen atoms combine with oxygen molecules to form ozone, driven by UV radiation.

Pollution Management Strategies

Actions taken to reduce or eliminate pollutants, including altering human activities and regulating emissions.