What is the major cause of ozone depletion?

Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere (see details below). CFCs and halons cause chemical reactions that break down ozone molecules, reducing ozone’s ultraviolet radiation-absorbing capacity.

What causes stratospheric depletion?

Ozone Depletion. When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere. Ozone can be destroyed more quickly than it is naturally created.

Which chemicals cause depletion of ozone layer?

Ozone depleting substances are chemicals that destroy the earth’s protective ozone layer….They include:

• chlorofluorocarbons (CFCs)
• halon.
• carbon tetrachloride (CCl4)
• methyl chloroform (CH3CCl3)
• hydrobromofluorocarbons (HBFCs)
• hydrochlorofluorocarbons (HCFCs)
• methyl bromide (CH3Br)
• bromochloromethane (CH2BrCl)

What is the cause of ozone depletion in geography?

Chemicals called chlorofluorocarbons (CFCs) are a reason we have a thinning ozone layer. A chlorofluorocarbon (CFC) is a molecule that contains the elements carbon, chlorine, and fluorine. But the CFCs start eating away at the ozone layer once they get blown into the stratosphere.

What are the three effects of ozone depletion?

Ozone layer depletion causes increased UV radiation levels at the Earth’s surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders.

How can we protect the ozone layer?

How can we protect the ozone layer?

1. Avoid the consumption of gases dangerous to the ozone layer, due to their content or manufacturing process.
2. Minimize the use of cars.
3. Do not use cleaning products that are harmful to the environment and to us.
4. Buy local products.

What are the 3 steps of ozone depletion?

The stratospheric ozone depletion process begins with the emission of halogen source gases by human activities and natural processes. Those emitted by human activities are also called ozone-depleting substances (ODSs). Subsequent steps are accumulation, transport, conversion, chemical reaction, and removal.

What is stratospheric depletion?

The dramatic depletion of stratospheric ozone in polar regions is caused by a combination of anthropogenic emissions of ozone-depleting substances, stable circulation patterns, extremely low temperatures and solar radiation.

What are the consequences of ozone layer depletion?

What diseases and disorders can be a result of ozone depletion?

What are some examples of ozone depleting substances?

ODS include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), halons, methyl bromide, carbon tetrachloride, hydrobromofluorocarbons, chlorobromomethane, and methyl chloroform. ODS are generally very stable in the troposphere and only degrade under intense ultraviolet light in the stratosphere.

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