41. Environment Agency - How Does Ozone Depletion Occur? stratospheric ozone from NASA s Goddard Space Flight Center Atmospheric Chemistry and Dynamics Branch. Making it happen find out what the environment Agency http://www.environment-agency.gov.uk/yourenv/eff/pollution/544857/544921/?versio

42. Study Ozone-eating Clouds Form In Cold Polar Rings CNN http://cnn.com/2001/TECH/science/03/30/environment.ozone.reut/index.html

43. Environment Agency - Ground Level Ozone level ozone have fluctuated between 25 and 66µg/m 3 . ozone tends to reach Further information can be found in the environment Agency report The State of the http://www.environment-agency.gov.uk/yourenv/eff/air/222825/222938/?version=1&la

44. Acid Clouds Destroy Arctic Ozone, NASA Says CNN http://cnn.com/2000/NATURE/05/31/environment.ozone.reut/index.html

45. Ozone And Your Environment ozone and Your environment. Concepts You will learn about ozone in the environment while practicing your library and Internet research skills. http://www.homeschoollearning.com/hsc/unit_09-12-01.html

Ozone and Your Environment Learn the terminology and skills used by today's scientists while focusing on one of Earth's most pressing environmental problems-Ozone in our environment. Recently, ozone, a simple molecule made from three oxygen atoms, has been discussed with great concern in headline stories such as, "Rising Ozone Levels in LA Cause Smog Alert," and "Depletion in Ozone Layer May Lead to Cancer!" Whether it is too much or too little, the effect of human activities on the level of ozone in our environment is under close scrutiny by environmentalists, politicians, and lawmakers. The lessons in this unit well help you discover why. Ozone can be found in two very different layers of our atmosphere, the troposphere and the stratosphere. The environmental problems related to the levels of ozone in these two atmospheric layers are very different. In the troposphere, the level of the atmosphere that we live in, ozone is a component of the air pollution commonly referred to as "smog." The amount of ozone in our troposphere is increasing because of chemicals emitted wherever natural gas, gasoline, diesel fuel, kerosene, and oil are combusted. Nearly 90% of our Earth's ozone is found in the atmospheric layer above ours called the stratosphere. This layer extends from about 14.5 kilometers to 50 kilometers (9-31 miles) in altitude and is where airplanes fly. The ozone layer is within the stratosphere, approximately 15-40 kilometers (10-25 miles) above the Earth's surface. This ozone is important for blocking the Earth from the Sun's harmful ultraviolet (UV) rays by absorbing the UV energy and keeping the rays from penetrating to the Earth.

46. Ozone Depletion Lessens Over Northern Hemisphere CNN http://cnn.com/2001/TECH/science/04/24/environment.ozone.reut/index.html

47. The Home School Learning Network, The Sky Is The Limit! ozone and Your environment. Concepts You will learn about ozone in the environment while practicing your library and Internet research skills. http://www.homeschoollearning.com/units/unit_09-12-01.shtml

Join HLN Members Login: Home Educators Teachers Sign Up Now! [3-Day Free Trial] What We Offer Editorial Calendar Membership Plans Info for Charter Schools Support About Us Contact Us Free Resources Homeschool Links Teacher Links Free Unit Studies Free Newsletter PDF Downloads HLN Flyer Virtual Science Fair Flyer Homeschool Conferences [1,032 kB] Homeschooling For Success [732 kB] Homeschool Portfolios [1,647 kB] NEW! HLN Presents the Spring, 2004 Virtual Science Fair HLN Subscribers Register for Free! Jan. 1 - March 29, 2003 Learn More! Home Free Units This is a free thematic unit provided by the Homeschool Learning Network. View more free thematic units, or enroll to receive daily thematic units, plus much more! Ozone and Your Environment Learn the terminology and skills used by today's scientists while focusing on one of Earth's most pressing environmental problems-Ozone in our environment. Recently, ozone, a simple molecule made from three oxygen atoms, has been discussed with great concern in headline stories such as, "Rising Ozone Levels in LA Cause Smog Alert," and "Depletion in Ozone Layer May Lead to Cancer!" Whether it is too much or too little, the effect of human activities on the level of ozone in our environment is under close scrutiny by environmentalists, politicians, and lawmakers. The lessons in this unit well help you discover why. Ozone can be found in two very different layers of our atmosphere, the troposphere and the stratosphere. The environmental problems related to the levels of ozone in these two atmospheric layers are very different. In the troposphere, the level of the atmosphere that we live in, ozone is a component of the air pollution commonly referred to as "smog." The amount of ozone in our troposphere is increasing because of chemicals emitted wherever natural gas, gasoline, diesel fuel, kerosene, and oil are combusted.

48. Ozone (Safe For You And The Environment) - Hot Tubs To Go ozone Safe for You. Safe for the environment. WHAT IS ozone? ozone IS SAFE FOR THE environment AS WELL AS EQUIPMENT. ozone will not explode. http://www.httg.com/ozone.htm

Search hot tubs: Still can't find it? Try our search engine. How many items are in my shopping cart? Ozone - Safe for You. Safe for the Environment. WHAT IS OZONE? Ozone is "active oxygen," nature's special element. (Each Ozone molecule consists of three oxygen atoms.) Ozone is a natural purifier. Ozone is created in nature by the combination of oxygen in air and the ultraviolet rays of the sun. Ozone has a clean. fresh scent noticed after a rainstorm. Ozone is the most powerful oxidizer safely used. Ozone is the alternative water purifier to traditional chemicals such as chlorine and bromine. OZONE IS CONVENIENT IN POOLS AND SPAS Ozone does not have to be purchased or stored. Ozone is generated "on site" and is introduced into the water or air automatically. Ozone does not affect the pH balance of water, thus minimizing pH adjustments. Ozone helps reduce total dissolved solids in water so that the water does not have to be changed as often. Ozone eliminates much of the routine maintenance because it does such an effective job keeping the water or air clean.

49. Environmental Issues Site - Information About Environmental Issues A guide for finding environmental, health, science, and political information about ozone depletion. http://environment.about.com/msuboz.htm

zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') About Environmental Issues Home Essentials ... Glossary zau(256,152,180,'gob','http://z.about.com/5/ad/go.htm?gs='+gs,''); Activism Climate Change Energy Sources Election 2004 ... Help zau(256,138,125,'el','http://z.about.com/0/ip/417/0.htm','');w(xb+xb); Stay Current Subscribe to the About Environmental Issues newsletter. Search Environmental Issues From Lara JillRosenblith Your Guide to Environmental Issues FREE Newsletter. Sign up now! Supreme Court rules U.S. can skip environmental study The Supreme Court returned a ruling Monday, which would allow Mexican trucks operating on U.S. roadways to skip an air quality study. According to ENN , the court's unanimous decision was that the president has the authority to let trucks in, and the Federal Motor Carrier Safety Administration has no say in the matter. ENN/AP Read more... Tuesday June 08, 2004 Dear EarthTalk For 06/06/04 A Weekly Column from the Editors of E/The Environmental Magazine. This Week's Questions Dear EarthTalk:What happened to the “paperless office” that computers were supposed to create, and what is the environmental impact of our paper usage? Michelle Barnes, Virginia Beach, VA

50. Ozone Cell, Ministry Of Environment & Forests, Government Of India ozone Cell in Ministry of environment Forests came into existence wef 01.04.1993. It deals with all works relating to the Vienna http://envfor.nic.in/oc/oc.html

Ozone Cell Web-site: http://www.ozonecell.com ESR Report of CTC [ html pdf ], and [ word The Montreal Protocol : India's Success Story The depletion of the ozone layer is one of the most serious environmental issue issues facing us today. It may ultimately be responsible for many millions of cases of skin cancer worldwide and may significantly affect agricultural production. Nevertheless, it is also an issue on which we may take heart, because it has brought the international community closer together in the search for practical solutions to a common threat. The thrust areas of Ozone Cell Directorate are as follows: International negotiations relating to policy decision by the conference of parties and those relating to implementation by the Executive Committee. Policy initiatives by the Govt. to encourage ODS phase out. Preparation and implementation ODS phase out projects by individual enterprises. In order to achieve the target on the above thrust areas Ozone Cell Directorate is organizing the activities as given below. Preparation, implementation and monitor ODS phase out projects.

51. CNN.com - Agency: Illicit Trade In CFCs On The Rise - Nov. 10, 2003 CNN http://cnn.com/2003/TECH/science/11/10/environment.ozone.reut/index.html

International Edition MEMBER SERVICES The Web CNN.com Home Page World U.S. Weather ... Special Reports SERVICES Video E-mail Services CNNtoGO Contact Us SEARCH Web CNN.com Agency: Illicit trade in CFCs on the rise Story Tools YOUR E-MAIL ALERTS Follow the news that matters to you. Create your own alert to be notified on topics you're interested in. Or, visit Popular Alerts for suggestions. Manage alerts What is this? NAIROBI, Kenya (Reuters) Illegal trade in ozone-depleting substances (ODS) is rising as the deadline for zero production and consumption of such chemicals draws closer, a London-based lobby group said on Monday. The Environment Investigation Agency (EIA) released a report at the United Nations Environmental Programme headquarters in Nairobi showing trends in global chlorofluorocarbons (CFCs) smuggling and the need for faster phase out under the Montreal Protocol. The protocol requires signatory states to phase out the use of some 95 chemicals blamed for damaging the ozone layer, a stratum of the atmosphere that protects the earth from ultraviolet radiation, which can cause skin cancer. But some countries, especially developing nations, have not yet complied with the protocol, which commits them to phasing out CFCs often used in refrigerators and other chemicals by certain dates.

52. Md. Dept. Of Environment Advises On Coming Ozone Alerts | BaltimoreChronicle.com environment Md. Dept. of environment Advises on Coming ozone Alerts. 4.26, Md. Dept. of environment Advises on Coming ozone Alerts. (INTER)NATIONAL. http://baltimorechronicle.com/042604SMOG.shtml

var st = location.href; var y = (replaceAll (st, "shtml", "html")); document.write(""); // Write a mailto link adding the document // title by closing the quote and adding the value // document.title and completing the html and javascript write statement document.write(" ") ; Advertisements: ENVIRONMENT: Md. Dept. of Environment Advises on Coming Ozone Alerts Research has shown that pollution blown into Maryland from other states is a significant factor in the quality of the state's air. Without more stringent regional controls, it will be very difficult for Maryland to achieve the national ozone standard. April 26, 2004Maryland's Department of the Environment (MDE) reminds residents of the Baltimore-Washington area that they have easy access to air quality forecasts and tips to help them breathe easier during the upcoming ozone season. May 1 marks the beginning of the ground level ozone season for this area; the season ends Sept. 30. This ground level ozone can be harmful to all, especially children, people with respiratory disease such as asthma, and those who work or exercise outdoors. Even at moderate levels, ozone may cause coughing, nose and throat irritation and chest pains. It can make lungs function less efficiently and it can make people more susceptible to respiratory illnesses. AirWatch, a "real time" air quality data notification system, can be visited at

53. ADEQ: Arizona Department Of Environmental Quality 04/26/04 ADEQ Issues ozone Health Watch for Phoenix Metropolitan Area. more news Quality, where our mission is to protect public health and the environment. http://www.adeq.state.az.us/

Keyword Search: Home Contact Us Help Site Map ... Subscribe BROWSE BY CATEGORY About ADEQ ADEQ Newsroom Assistance Compliance ... Doing Business with ADEQ BROWSE BY PROGRAM Air Quality Waste Programs Water Quality NEWS RELEASES ADEQ Director Owens Issues Reminder to Salt River Reservoirs Visitors ADEQ Director Owens Extends Solid Waste Exemption to Help Communities Recovering from Aspen Fire ADEQ Completes Cleanup of Nogales Wash Phoenix Site Added to State Superfund Registry ADEQ Issues High Pollution Advisory for Phoenix Metropolitan Area ADEQ Director Owens Reminds Arizona Anglers - Fish Consumption Advisories Still In Effect For 11 Arizona Lakes ADEQ Director Steve Owens Announces Expansion of Municipal Tank Closure Program Fish Kills Prompt Monitoring, Investigation at Salt River Reservoirs ADEQ Extends Ozone Health Watch for Phoenix Metropolitan Area Through Weekend ADEQ Extends Ozone Health Watch for Phoenix Metropolitan Area ADEQ Issues Ozone Health Watch for Phoenix Metropolitan Area Estimate of Fuel Spilled in Kinder Morgan Pipeline Break Now Over 32,000 Gallons more news...

54. Welcome To Öko-Recherche Analyses of material flows of chemicals in the environment, including chemicals damaging the ozone layer. http://www.oekorecherche.de/english.html

55. National Safety Council Fact Sheet Library Ozone Center Mobile Source Emissions Program American Lung Association EPA Health Effects of GroundLevel ozone Maryland Department of the environment See other Fact http://www.nsc.org/library/facts/ozone.htm

Ground-Level Ozone What Is Ground-Level Ozone? Ozone is a colorless gas that is a variety of oxygen. Oxygen consists of two oxygen atoms; while ozone consists of three. Ground-level ozone is one of the main components of smog, which is formed by the interaction of hydrocarbons (unburned or evaporated gasoline) and nitrogen oxides in the presence of sunlight. Where Is It Found? Stratospheric ozone (in the upper atmosphere) is known as the ozone layer and protects our health by shielding us from the sun's damaging ultraviolet rays. However, ground-level, ozone (tropospheric ozone) is a pollutant with highly toxic effects. It is a health hazard causing damage to human health, the environment, crops, and a wide range of natural and artificial materials. What Are the Health Effects of Ground-Level Ozone? Ozone that is close to the ground can cause eye irritation; headaches; coughing; impaired lung function; and eye, nose, and throat irritation. Asthmatics and children are most at risk. The chance of experiencing adverse health effects from elevated ozone levels increases during heavy exercise or outdoor activity. Ground-level ozone can also damage trees, plants, and reduce visibility. What Causes Ground-Level Ozone?

56. US Pushes To Boost Use Of Ozone Damaging Fumigant we re left with a job unfinished, said UN environment Program spokesman Nick Others say alternative fumigants that do not damage the ozone layer including http://www.commondreams.org/headlines04/0324-07.htm

Home Newswire About Us Donate ... Archives Headlines Printer Friendly Version E-Mail This Article Published on Wednesday March 24, 2004 by Reuters U.S. Pushes to Boost Use of Ozone Damaging Fumigant by Timothy Gardner U.S. fruit growers in Montreal this week will push for an increase in their use of a pesticide known to destroy the ozone layer, claiming that exemptions for developing nations on the chemical are unfair. Also See: Methyl Bromide: Threat to Ozone a Bigger Threat to Workers Bush Administration Wants Exemptions to Ozone Pact for Damaging Pesticide Study Finds Atmospheric Decline in Pesticide Harmful to Ozone Ozone Layer 'Sacrificed' to Lift Bush's Re-Election Prospects Methyl bromide, a fumigant that kills soil and food pests, is due to be phased out by developed nations by January 1, 2005, under the 1987 Montreal Protocol to protect the atmosphere. The George W. Bush administration last year attempted to exempt farmers from the 2005 ban. Negotiations on how much should be exempted for critical uses deadlocked last November at a U.N.-sponsored negotiating conference in Nairobi. Delegates hope to reach an agreement on the figure at a Montreal meeting this week. The United States, the European Union and Japan have cut the use of methyl bromide to 30 percent of 1991 levels, but now the United States wants to increase its use of the chemical to 37 percent over previous levels over the next two years and by an unspecified level in the year after that.

57. Ask NOAH About: Environmental Health Biological Contaminants Combustion Appliances Indoor Air (General) ozone Pollution Radon Weather and Health, Advocacy for the environment General Resources http://www.noah-health.org/english/illness/environment/environ.html

Ask NOAH About: Environmental Health Environmental Health Topics Resources Air Quality The Basics Asbestos Biological Contaminants ... Technical/Professional Resources Environmental Health Topics Air Quality The Basics Airnow - Environmental Protection Agency Air Pollution And Health: The Ozone And Particulate Story - National Institute of Environmental Health Sciences Air Pollution and Exercise - American Lung Association Air Pollution: Protecting Yourself - American Lung Association ... National Environmental Respiratory Center - NERC Asbestos Asbestos - American Lung Association Asbestos Awareness - Wayne State University Asbestos Contamination in Vermiculite Asbestos: General Info - Environmental Protection Agency ... Asbestos in Your Home - American Lung Association Other Resources/Technical/Professional (Asbestos) Asbestos Institute Federal Asbestos Regulations and Guidance - Department of Ecology, Washington State Biological Contaminants Anthrax Biological Contaminants: Basic Facts - Environmental Protection Agency Indoor Air Quality (IAQ) Tools for Schools Kit-Environmental Protection Agency Flood Cleanup: Avoiding Indoor Air Quality Problems - Environmental Protection Agency ... Use and Care of Home Humidifiers - Environmental Protection Agency Combustion Appliances Carbon Monoxide-Centers for Disease Control Combustion Appliances: What You Should Know - Environmental Protection Agency Crowded skies impact air quality Carbon Monoxide Carbon Monoxide - Environmental Protection Agency Carbon Monoxide Poisoning: Protect Your Family and Yourself - Environmental Protection Agency Nitrogen Dioxide - Environmental Protection Agency Indoor Air Quality (General)

58. MSN Encarta - Environment The problems facing the environment are vast and diverse. Global warming, the depletion of the ozone layer in the atmosphere, and destruction of the world’s http://encarta.msn.com/encyclopedia_761566249/Environment.html

MSN Home My MSN Hotmail Shopping ... Money Web Search: logoImg('http://sc.msn.com'); Encarta Subscriber Sign In Help Home ... Upgrade to Encarta Premium Search Encarta Tasks Find in this article Print Preview Send us feedback Related Items Conservation Ecology more... Magazines Search the Encarta Magazine Center for magazine and news articles about this topic Further Reading Editors' Picks Environment News Search MSNBC for news about Environment Internet Search Search Encarta about Environment Search MSN for Web sites about Environment Also on Encarta Encarta guide: The Reagan legacy Compare top online degrees Proud papas: Famous dads with famous kids Also on MSN Father's Day present ideas on MSN Shopping Breaking news on MSNBC Switch to MSN in 3 easy steps Our Partners Capella University: Online degrees LearnitToday: Computer courses CollegeBound Network: ReadySetGo Kaplan Test Prep and Admissions Encyclopedia Article from Encarta Advertisement Environment Multimedia 11 items Article Outline Introduction Understanding the Environment Factors Threatening the Environment Efforts to Protect the Environment ... Future Prospects I Introduction Print Preview of Section Environment , all of the external factors affecting an organism. These factors may be other living organisms (biotic factors) or nonliving variables (abiotic factors), such as temperature, rainfall, day length, wind, and ocean currents. The interactions of organisms with biotic and abiotic factors form an

59. News Bush ready to wreck ozone layer treaty. US slips in demand to drop ban on harmful pesticide. By Geoffrey Lean, environment Editor. 20 July 2003. http://news.independent.co.uk/world/environment/story.jsp?story=425893

60. News ozone layer sacrificed to lift reelection prospects. By Geoffrey Lean, environment Editor. 23 November 2003. President George Bush http://news.independent.co.uk/world/environment/story.jsp?story=466406

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