Ozone depletion is caused by the discharge of hydrofluorocarbons, chlorofluorocarbons and other ozone-depleting substances that were once commonly used as solvents, refrigerants and insulating foams. The chemicals methyl chloroform, methyl bromide and halons also cause damage to the ozone layer and are used in commercial products such as industrial solvents, pesticides and fire extinguishers. When these ozone depleting chemicals enter the stratosphere, they are exposed to ultraviolet radiation from the sun and release chlorine atoms that begin a destructive cycle of the ozone layer.Know More
A single chlorine atom is capable of separating over 100,000 ozone molecules. The bromine atoms released by halons and methyl bromide are 60 times more harmful to ozone molecules than chlorine atoms. The resulting damage to the ozone from harmful ozone-depleting substances causes Earth's surface to be exposed to higher levels of ultraviolet radiation.
The increased levels of radiation from the sun can increase the risk of people developing weakened immune systems, cancer and cataracts. Higher levels of ultraviolet radiation can negatively effect the marine food chain, reduce the amount of food that crops produce and can also have other disastrous effects.
The ozone layer contains about 90 percent of Earth's ozone and is a concentration of ozone molecules within Earth's stratosphere. The stratosphere stretches for about 6 to 30 miles above Earth's surface and is responsible for filtering ultraviolet radiation emitted from the sun.Learn more about Pollution
The amount of volatile organic compounds in a solution or mixture can be determined through a formula that involves including all solvents in a substance and subtracting the exempt solvents that aren't legally classified as VOCs. Determining the amount of VOCs in a substance is necessary to adhere to federal and state regulations on the limits of VOCs in any product.Full Answer >
In order to halt the depletion of the ozone layer, countries around the world have banned the use of chlorofluorocarbons and other ozone-depleting substances. These compounds produce chlorine and bromine atoms high in the atmosphere, and these atoms react with ozone, destroying it.Full Answer >
One of the greatest and most dangerous effects of pollution on the ozone layer is that it creates holes in the atmosphere, which allow powerful ultraviolet rays from the sun to reach the Earth’s surface. Many varieties of atmospheric pollutants — toxic chemicals, synthetic substances, such as DDT, and manmade chemicals — enter the atmosphere. They may remain intact and linger for decades, even up to a century, which gives them time to create considerable damage to the atmosphere.Full Answer >
Some of the ways to help protect and stop the depletion of the ozone layer include not buying products in aerosol cans, maintaining air-conditioning filters and units, using mass public transit or riding a bike instead of driving, and purchasing energy saving light bulbs and appliances. The ozone layer protects the earth from the suns harmful ultraviolet rays.Full Answer >