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Ozone Layer
The ozone layer is a crucial layer in the Earth's atmosphere that absorbs and blocks out harmful ultraviolet light that can damage Earth.
3,889 Questions
The ozone layer (in the stratosphere).
What is being done in tha US to stop damage to the ozone layer?
Certain CFCs have been banned, which turned out to be long-term ozone depleters. Other than that, increasing gas prices (caused by speculators trying for profit), will be the next big step by reducing combustion of fossil fuels (slight increase in oxygen, slight decrease in water vapor at altitude).
Is life possible without the ozone layer?
Ozone (O3) is an allotrope of oxygen, so obviously there can be no ozone if there is no oxygen somewhere. There is negiligible amounts of oxygen on Mars, yet there is a detectable amount of ozone there. Carbon dioxide may actually be supplying some of the oxygen required to form it...
What is ozone considered in Earth's atmosphere?
Ozone gas makes one important part of the atmosphere. It protects us from the deadly UV rays.
What factors make chlorofluorocarbons especially problematic?
are released by air conditioners into the ground water.
What are the problems of depletion of the ozone layer?
Depletion of the ozone layer can result in increased levels of harmful ultraviolet (UV) radiation reaching Earth's surface, leading to a higher incidence of skin cancer, cataracts, and weakened immune systems in humans. It can also disrupt ecosystems by damaging phytoplankton and disrupting food chains in aquatic environments. Furthermore, ozone depletion can have detrimental effects on agriculture by reducing crop yields and affecting plant growth.
What will happen if the use of CFC is eliminated?
CFC's were banned because in the upper atmosphere they can decompose ozone under the impact of ultraviolet radiation (which is stronger there) to form free radicals, which then catalyze the decomposition of ozone. Because they act as catalysts, they are not used up in the reaction and can continue to decompose many, many ozone molecules per molecule of CFC.
The ozone layer is the main barrier to ultraviolet light, so weakening it would mean more UV reaching the surface. UV light is deadly to one-celled organisms, and it's not all that great for higher animals either, since it can cause skin cancers.
How does ozone layer affect an ecosystem?
As a "shield", it prevents certain wavelengths of UV from passing. As an occasional event (lightning), it destroys odorous compounds. With chronic (long term) exposure. it damages / destroys plants ability to respire, and animal's lung tissue. Ozone is used by marigolds to fight root parisitism, and by white blood cells to fight infection. In aquaria, ozone plays an important part in purification of water (reactivation of natural bromine), with similar damage to fish's gill structures under high ozone concentrations or long term exposure.
What relationship do cfc have with the ozone layer?
CFC are photoactivated to a state that will aid in destruction of ozone, release the oxygen atom later, and reset to do it all over again. http://books.google.com/books?id=Ttwh4HtVFngC&pg=PA136&lpg=PA136&dq=CFCs+ozone+photocatalytic+-ti02&source=web&ots=ZSrwSRgbTo&sig=bhDV6pTQ4DYwAY-qD2jY8wjbJ_0&hl=en&sa=X&oi=book_result&resnum=6&ct=result
What are phytoplankton and how are they affected by ozone depletion?
UV-B passes to Earth's surface, when ozone does not stop it. UV-B can travel some short distance into seawater before it is scattered and its energy reduced. Phytoplankton has DNA, and lives near the surface of the ocean where sunlight is strong. UV-B destroys DNA.
So ozone depletion kills or mutates phytoplankton, via UV-B from the Sun.
What layer is the ozone a part of?
You can find ozone in any layer of the atmosphere, but in the lower layers it does not last long. The so-called ozone layer is in the lower portion of the stratosphere, at a height where it takes a long time to dissociate.
How the ozone layer forms and why is it important?
The ozone layer is present in the stratosphere region of the atmosphere. It is important as it protects us from the harmful UV radiations of the sun that cause several health hazards including skin cancer!
Why there is a gradual thinning of the ozone in our planet?
There is a gradula thinning of the ozone in the atmosphere because of the ozone depleting substances. These substances contain CFC's which deplete the ozone by reacting with it.
There are no parts to the ozone layer. Ozone is found in all layers of the atmosphere, with near zero concentrations at very high altitudes and near the Earth's surface. The lower portion of the stratosphere reaches peak ozone concentration (9-10 ppm), and this is usually referred to as the ozone layer. In the winter at one of Earth's poles, an ozone hole forms. The size of the is a function of contaminants that may be found at those altitudes that accelerate the otherwise natural decay of ozone.
What will happen if all the ozone disappears?
The amount of ultraviolet radiation we are exposed to on Earth increases because the ozone layer, which was supposed to form a barrier to protect us from the UV rays, have decreased in amount. UV rays are bad for health; skin cancer and the weakening of our immune systems.
Does the ozone layer trap carbon dioxide in the atmosphere?
It doesn't. The ozone layer has *nothing at all* to do with trapping CO2.
Above the level of the ozone layer, intense radiation breaks CO2 down, so you get fooled into thinking the ozone layer had something to do with "trapping".
How can you save the ozone layer for kids?
# Minimize high altitude aircraft flights (oxygen reduction and water vapor deposition) # Minimize rocket flights (water vapor deposition) # Encourage growth of plants that produce oxygen, discourage deforestation # Decrease / control releases of high temperature steam / moisture to the atmosphere # Eliminate production and release of known ozone depleting chemicals (such as CFCs and HCFCs) where remotely possible. Subsidize production of safer alternatives where possible. # Establish controls to assure that new compounds to be used in high volume, are surveyed for effect on ozone. CFCs and other compounds have been identified as compounds that catalytically break down ozone. Many countries have stopped using most of them (aerosol cans, industrial pollution etc..), and so they will eventually move out of the "ozone layer," where they can do little harm.
The ozone hole is an area where ozone concentrations are lower than normal. It occurs because of various factors: # If there is little UV light to make new ozone -- when winter comes to the poles where the ozone holes form, the ozone decays with time if for no other reason. We can't do much about this. # If there is little oxygen to make ozone. # If there are compounds (many inadvertantly produced by humans) that consume and deplete oxygen and/or ozone. # If there are compounds that catalytically convert ozone back to oxygen. We can't 'fix' the hole per se, but we can do things to PREVENT it from getting bigger. Note that there is a 10-20 year "delay" between CFC emissions and ozone depletion -- we are experiencing the effects of CFC emissions from the '70s and early '80s. The laws/regulations that have been passed are to compensate and prepare for future increases in ozone depletion due to our past, present, and future actions concerning pollution and CFC emissions. Actions an indivdual can take (see the link below for more): * Try to use products which are labeled "Ozone-Friendly" * Ensure technicians repairing your refrigerator or air conditioner recover and recycle the old CFCs so they are not released into the atmosphere. * Vehicle air conditioning units should regularly be checked for leaks. * Ask about converting your car to a substitute refrigerant if the a/c system needs major repair * Help start a refrigerant recovery and recycling program in your area if none already exists. * Replace halon fire extinguishers with alternatives (e.g. carbon dioxide or foam). * Suggest school activities to increase awareness of the problem and to initiate local action.
#1:stop using aerosol cans
#2:dont drive cars
#3:stop water vapor
#4:something to do with CFC's{chlorofluorocarbons}
#5:something about tetrachlorie and methyl-chloroform
That's all I know
we can start using electric cars or hybrids and stop using hair spray
1. Don't use cars that use gas and try to buy cars that use electricity.
2. If your a/c in your car is leaking take it to a repair shop quickly or CFC will go in the air and that is bad because CFC hurts our ozone layer.
3. Plus you shouldn't use aerosol cans.
4. You should tell your school about earth's ozone layer so people will help us save the ozone layer.
5. Buy refrigerators with lower watts.
6. Stop using CFC's. CFC means "Chlorofluorocarbon". CFC's are a type of chemical that is used in spray cans to make them spray and in refrigerators to make stuff cold.
What are the advantages of ozone layer?
Brand new organisms will get to starve for lack of food, as all the species mutate. Plenty of cancer to go around. If the organisms have eye structures similar to humans, they will get more cataracts that will let them be preyed on more easily
Nominally reduced moderation of Earth's surface temperature.
New Species will develop or evolve and the earths atmosphere will be distorted. We will be forced to live maybe on Mars. Or we could evolve rapidly as well.
What layers contains the ozone layer?
Ozone is naturally formed and found in the atmosphere. It can also be found at ground level, but this is considered to be the "bad" ozone because it comes from pollutants. The atmospheric layer that has the highest concentration of ozone is the stratosphere. The ozone layer is mainly located in the lower portion of the stratosphere from approximately 10 km to 50 km above Earth's surface, though the thickness varies seasonally and geographically.
How does the ozone benefit living things on earth?
Ozone present in the stratosphere is helpful as it blocks the harmful ultraviolet radiations from the sun. This ozone present in the atmosphere as ozone layer acts as a shield for earth against these harmful radiations.
Is methane destroying the ozone layer?
Methane has no effect on the ozone layer. Ozone cannot get to the carbon atom, so they coexist happily.
However, oxygen in the stratosphere does experience a chemical reaction with methane. Emissions of methane are transformed into water, according to the formula CH4 + 2O2 --> CO2 + 2(H2O). Ozone is O3, so it is unaffected.
What chemicals are causing the ozone layer thinning?
CFC's cause hole in ozone. They react with ozone and deplete it.
Does smoking affect the ozone layer?
Smoking cigarettes does not directly affect the ozone layer. Ozone layer depletion is mainly caused by chemicals like chlorofluorocarbons (CFCs) used in refrigerants and aerosols, as well as pollutants from industrial activities. However, smoking can contribute to air pollution, which in turn can have broader effects on the environment.
How much percent part of sun's ultraviolet rays is absorbed by ozone layer?
98% is filtered, 2% gets through. See the link below.
All UV-C is gone, most of the UV-B is gone, leaving the UV-A pretty much alone.
