How Ozone layer gets deplited? What are all the ways of prevention?
2006-10-01 23:07:55 · 5 answers · asked by Opposite direction 1 in Environment
yes, its every body's responsibilty! each n every person can help in preventing the depletion of ozone layer. first of all pollution should be controlled and then unnecessary cutting of the trees should be stopped. These are the basicsteps we can take. also, planting of trees is important. keeping places clean and not throwing undisposable garbage here n there will also help. Dispose for such items should be done systematically. If u know sm more ways to stop or reduce it, let me knw.
2006-10-01 23:14:45 · answer #1 · answered by komal d 1 · 0⤊ 1⤋
Ozone layer is depleting fast due to the actions of the mankind. Due to the chloro flouro carbons ( CFC's) released by some man made products such as refridgerators, air conditioners etc...
are involved in the depletion of the O3 layer. The actual phenomenon is that ozone molecule readily splits up when hit by the ultra violet radiation. The energy of life damaging UV rays is thus converted into harmless heat and never reaches the earth. The break up leaves a free oxygen atom (O) and an oxygen molecule (O2), the stuff we breath. The O2 and O, in an ongoing cycle, recombine to form new ozones molecules. The life span os the CFC's is nearly 100 years. When a CFC molecule is exposed to the UV rays, it is broken apart. This releases a chlorine atom which attacks the ozone molecule by forming carbonmonoxide and thus destroying the O3 molecule.The oxygen atoms from the new carbonmonoxide is pulled away by free oxygen atoms freeing the chlorine atom to restart the cycle. It has been estimated that a single chlorine atom can eat upto 1lakh molecules of ozone. Moreover it's depletion can bring some genetic disorders in the living beings.
All we can do to prevent O3 layer's depletion is to cover the whole earth with a green blanket i.e., we must take the activity of planting trees as a mission at high level. Otherwise the mankind would be the first sufferer.
2006-10-02 07:36:22 · answer #2 · answered by Anikris 3 · 0⤊ 0⤋
The easy way to stop the ozone depletion is to ban CFC(chloro fluro carbon)used as a refrigerent.
Now the hole is becoming small and scientists says that it will be cured in next 60 years.
It is the duty of everyone otherwise the harmful UV rays can enter to earth and can cause skin cancer to man.
2006-10-01 23:29:24 · answer #3 · answered by malukollam20 2 · 0⤊ 0⤋
It seems theres a nice ban going on not to allow semi truck drivers to idle their trucks to stay warm in the winter or cool in the summer thanks to people like you.Try sitting in your hot car with 90 degree weather and no air conditioner,try sleeping in your car at 20 degree weather.Would you like that?We have a job to do and we can no longer have any resemblance of a comfortable home.Its easy for you people to complain about the ozone and we have to be miserable and you wonder why there are tired truck drivers out on the roads?Thats what your human kindness has done for hard working people like us.Oh and Gee thanks
2006-10-01 23:20:28 · answer #4 · answered by halfbright 5 · 0⤊ 0⤋
Ozone depletion is the result of a complex set of circumstances and chemistry. This page has links to articles that give overviews or broad information, shorter pieces that focus on specific aspects of ozone depletion, images and animations of ozone levels and ozone depletion, and international organizations that issue regular updates.
Please note that this site is intended only to provide general information about the science of ozone depletion. Therefore, it is written without detailed citations of original research. If you need such references, please see either the answers to frequently asked questions, by Robert Parson, or NASA's Ozone Resource File , both of which provide detailed information and full citations to original papers. You can also find many original papers at the CIESIN site .
EPA has another web site about global warming. Please visit that site for information on global warming science, projected impacts, governmental policies, and other information.
General Information
Human Health Benefits of Stratospheric Ozone Protection (PDF, 83 pp., 1.2 MB)
This report describes the analytical and empirical methodologies used by the Atmospheric Health Effects Framework (AHEF), a model used to predict changes in human health effects that result from changes in the use and release of ozone-depleting substances.
Forecast Earth
Two minute movies summarizing the science and effects of ozone depletion created through a partnership between EPA and The Weather Channel.
Scientific Assessment of Ozone Depletion: 2002
This is the most recent World Meteorological Organization and United Nations Environmental Programme assessment. It contains the most up-to-date understanding of ozone depletion and reflects the thinking of over 250 international scientific experts who contributed to its preparation and review.
Alternate Link: UNEP site
Twenty Questions and Answers About Ozone Depletion (2.1 MB)
This component of the "Scientific Assesment of Ozone Depletion: 2002" presents 20 questions and answers about the often-complex science of ozone depletion. The answers were all prepared by and reviewed by a large international group of scientists. It is written for a broad readership of decision-makers, educators, students, and the general public.
Questions and Answers (brief)
Fact Sheet (detailed)
What EPA Has Done About Ozone Depletion: An Overview
What Can Individuals Do?
On the Trail of the Missing Ozone
This introduction to ozone depletion first describes the causes and effects of ozone depletion, and then explains some of the solutions. Follow Farley the reporter as he learns about this issue. Links are provided along the way to more detailed information found elsewhere on the site. Three versions are available: a web-viewable set of illustrated panels, a text version, and an Adobe Acrobat version.
The Ozone Depletion Process
A broad overview of how ozone depletion occurs.
The Antarctic Ozone Hole
View an animation of the 2000 hole, read why it occurs over the South Pole, and consider the many ways to measure the hole.
Current Progress of the Antarctic Ozone Hole
View a page from NOAA Climate Prediction Center's web site, which shows weekly updates of the hole.
Ozone Science Crossword Puzzle
Environmental Indicators: Ozone Depletion
Describes the data that characterize the ozone layer and demonstrate that CFCs and other chemicals are causing ozone depletion. Many internal links allow more in-depth reading.
Ozone Depletion: When Less Is Not Enough
Written by the National Safety Council's Environmental Health Center, this guide provides a well-rounded description of ozone depletion, its causes, and its impacts. It is one chapter of a book titled Reporting on Climate Change: Understanding the Science.
Ozone-Depleting Substances, ODPs, GWPs, and CAS Numbers
Myth vs. Measurement
A series of responses to the most common misunderstandings about ozone depletion.
CFCs are Heavier Than Air, So They Can't Reach the Ozone Layer
Volcanoes and the Oceans are Causing Ozone Depletion
Ozone Depletion Occurs Only In Antarctica
No Link Exists Between Ozone Depletion and Higher UV Levels
Will the Ozone Layer Recover? Can We Make More Ozone?
A response to common questions about the ozone layer's recovery.
The Effects of Ozone Depletion
A basic description of how ozone depletion harms human health and the environment, with links to more detailed information.
Benefits of the CFC Phaseout
This fact sheet describes specific benefits and also includes some case studies of successful use of alternatives.
Ozone: Good Up High, Bad Nearby
Produced by EPA's Office of Air Quality Planning and Standards, this fact sheet explains the difference between stratospheric and tropospheric ozone.
Information from Environment Canada
The Stratospheric Ozone web site contains general and Canadian-focused information on ozone depletion including a primer on ozone depletion and indicators of ozone depletion, featuring many graphs and original data.
Stratospheric Ozone Depletion: A Focus on EPA's Research
This brochure describes the mechanisms of and problems associated with stratospheric ozone depletion as well as some of the research projects pursued by EPA's Office of Research and Development (ORD).
Specific Aspects of Ozone Depletion
Numbering Scheme for Ozone-Depleting Substances and Substitutes
Why chemicals are numbered certain ways.
Ozone vs. Altitude
Ozone concentrations are higher in the stratosphere than in the troposphere.
Aerosols from Mt. Pinatubo
A graph and explanation of the effects of volcanic aerosols on ozone depletion.
Ozone Depletion Over the Northern Hemisphere
Compares Arctic and Antarctic ozone losses, along with ozone changes over North America and Arosa, Switzerland.
University of Georgia UV Monitoring
Information on the network of UV monitors operated for EPA.
Images and Animations
Animation of the 2003 Ozone Hole
A brief description of the causes of the ozone hole, plus an animation of the 2003 event.
EPA's Ultraviolet Monitoring Program
EPA operates and maintains a network of Brewer spectrophotometers throughout the United States, measuring full-sky spectrally-resolved solar radiation in the UV-B and UV-A bands. Visitors can create graphs of daily UV and ozone levels and download the data.
NASA's TOMS (Total Ozone Mapping Spectrometer) Multimedia Files: Ozone Depletion Movies, Graphics, and Original Data
This site is full of useful data and information. Download original ozone level data and see movies and graphics of ozone depletion and the Antarctic ozone hole. The site also lets you find the ozone level over your house!
NOAA Climate Monitoring and Diagnostics Laboratory
CMDL includes several programs to measure important atmospheric characteristics.
Nitrous Oxide And Halocompounds (NOAH) division
NOAH measures concentrations of CFCs and other ozone-depleting substances in the atmosphere. The web site provides access to data and graphs.
Ozone and Water Vapor Group
Provides links to several programs focusing on ozone measurement, including vertical profiles of ozone abundance at the South Pole during the occurrence of the ozone hole and total global ozone.
NOAA Climate Prediction Center
Includes current satellite ozone maps; UV index bulletin; TOVS data, images.
Ozone Hole Tour
This tour was put together by members of the Centre for Atmospheric Science at the University of Cambridge, UK. It features text, graphics, and movies.
Ozone Images from the Department of Meteorology, University of Reading, UK
Features a 90-day archive of the latest images from global, northern hemisphere, and southern hemisphere ozone measurements. Also features animations and ozonesonde measurements from Antarctica. Some of these images are also available from the NOAA Climate Prediction Center.
World Ozone and Ultraviolet Radiation Data Centre
Operated by Environment Canada, this Centre provides current and time series graphs of ozone and UV radiation over Canada and North America.
2006-10-01 23:31:39 · answer #5 · answered by deepa k 1 · 0⤊ 0⤋