What are the reactions that cause ozone depletion?

What are the reactions that cause ozone depletion?

The most reactive of these gases are chlorine monoxide (ClO), bro- mine monoxide (BrO), and chlorine and bromine atoms (Cl and Br). These gases participate in three principal reaction cycles that destroy ozone.

How ozone layer is depleted reaction?

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.

What is ozone depletion explain?

Ozone layer depletion is the thinning of the ozone layer present in the upper atmosphere. This happens when the chlorine and bromine atoms in the atmosphere come in contact with ozone and destroy the ozone molecules. One chlorine can destroy 100,000 molecules of ozone. It is destroyed more quickly than it is created.

What are the causes and effects of ozone depletion?

Explanation: Ozone depletion is primarily caused by human activities. The main effect of ozone depletion is an increase in UV-B rays reaching the earth’s surface. Causes : chlorofluorocarbon (CFCs), halons, and other compounds deplete the ozone layer.

What are ozone depleting substances examples?

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.

What is effect of ozone?

Ozone can cause the muscles in the airways to constrict, trapping air in the alveoli. This leads to wheezing and shortness of breath. Depending on the level of exposure, ozone can: Cause coughing and sore or scratchy throat.

What is ozone depletion Class 12?

– Ozone layer depletion is the gradual thinning of the earth’s ozone layer in the upper atmosphere caused due to release of chemical compounds containing gaseous bromine or chlorine from industries and human activities. – Due to this, the ozone layer in the upper atmosphere (i.e., stratosphere) becomes thinner.

Which is ozone depleting agent?

chlorofluorocarbons (CFCs)
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.