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Why ozone hole is above antarctica even when no CFC is present there?
Wiki User
∙ 9y ago
The CFC's are produced in cities. They are carried to poles by westerly winds.
Wiki User
∙ 9y ago
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Why was the first ozone hole found only in Antarctica?
The ozone hole over Antarctica disappears for about a half-year, every year. Another one forms over the North pole. Ozone holes form over the pole where there is no UV-C to form new ozone, because ozone is unstable and decays, and because contaminants can help ozone decay with even very low energy light.
Why is the ozone layer depleting but increasing above the earth surface?
Ozone is decayed by compounds high in the atmosphere, most of which are Man-sourced (even from nearly 100 years ago). Ozone is produced by NOx (in exhaust from infernal combustion engines), VOC (in exhaust, released during refueling and by Nature), violet and more energetic light, and oxygen present in the atmopshere. The common agent here is Man.
What are the effects of ozone?
Ozone is present in the stratosphere of the earth's atmosphere. It protects us from the harmful UV light of the sun. The ozone present in the ground layer is harmful as it is the major constituent of the earth's atmosphere.
What is meant by good and bad ozone?
Ozone is ozone not a moral principle - it is not good or bad. Ozone in the ozone layer and sheilds the Earth's surface from UV radiation, ozone in air is a toxic material which can damage plants and human health, ozone in air in the presence of VOC and NOx can create photochemical smog, ozone introduced into water supples can kill harmful pathogens.
Why it Will take years for the ozone layer to recover even though the use of CFC has declined significantly y?
The destruction of ozone is at a par level above the natural standards. So it will take time to replenish after CFC has declined.
Explain the depression of ozone layer?
Ozone requires the following components for formation: oxygen, UV light of 215nm wavelength or shorter. Some nitrogen compounds also assist in forming ozone, even without VOCs being present. Ozone is decreased by time, temperature, water vapor, molecules that are oxidized by ozone, and molecules that catalyze ozone destruction. Water vapor also serves to block the "nitrogen assitance" path of ozone formation. Any increase in destroyers of ozone, or reduction in progenitors of ozone will serve to decrease the amount of ozone present at any particular place. Additionally, UV-B or more energetic light from the Sun destroys ozone. If the contaminants get to the ozone first, UV-B makes it to Earth's surface. UV-C or more energetic light will get stopped by other things in the atmosphere.
Why do you have to save the ozone?
Ozone is something without which we human beings cannot even think of surviving. Ozone present in stratosphere as ozone layer helps to absorb the harmful ultraviolet radiations coming from sun which could cause serious damage to all living creatures. ozone has special property of absorbing U.V. radiations and allowing the infrared rays to come in which are vital for human life. Thus ozone proves as a life protector for the human species.
Where is the ozone hole and why is it there?
The largest ozone hole is above the Antarctic. It is almost as large as continental United States. Antarctic winters are very, very cold. When ice freezes in the air, the crystals are formed. This helps chlorine attack ozone molecules. Then, in the spring, the sun's ultra-violet rays break up the CFCs (ChloroFluoroCarbons) and making even more chlorine. Thus, the ozone is completely gone. But, the ozone levels are known to increase in the summertime.
How big is the hole in the ozone layer near Antarctica what steps are being taken to prevent ozone layer depletion?
The ozone hole, and its size varies by time of year. No point in answering that part of the question.As to what is being done to prevent ozone layer depletion, we are asking silly questions on the internet. So far we have banned CFCs, which have been shown to deplete ozone (Nature also makes some, but we cannot fine Her). We still fly aircraft high in the atmosphere, even though we know this also depletes ozone. Other than that, we thump our chests, and point fingers elsewhere...
How much the ozone layer is affected by human activity?
All of the problems in ozone are due to human activity. This has even caused a hole in ozone.
When can you smell the ozone?
No. For one thing, it's quite high; well above even the tallest mountains. For another thing, it's just gas, and "feels" exactly like the rest of the atmosphere (except thinner due to its height, of course).
What damages to plants is done by ozone pollution?
Plants are affected by ozone pollution. It even kills plankton.
