Copyright © 2006-2011 Marshall Cavendish International (Singapore) Pte. Ltd. Depletion of the Ozone Layer Problem with ozone: At low altitudes, it can.

Slides:



Advertisements
Similar presentations
Atmosphere and Climate ChangeSection 2 The Ozone Shield Ozone is a molecule made of three oxygen atoms. UV light is harmful to organisms because it can.
Advertisements

Bell ringer.
Ozone – molecule made of 3 oxygen atoms.
Chlorofluorocarbons CFCs
Atmosphere & Climate Change
GENERAL SCIENCE MR. J. PRUSHINSKI EE 4.3: Air Pollution & Solutions.
Objectives Explain how the ozone layer shields the Earth from much of the sun’s harmful radiation. Explain how chlorofluorocarbons damage the ozone layer.
Water and Weather Chapter Five: Earth’s Atmosphere 5.1 The Atmosphere 5.2 Layers of the Atmosphere 5.3 Earth is Just Right.
Alejandro Martínez Erick Castillo Giuliana Villegas
Ozone Depletion Ozone produced from the interaction of hydrocarbons and oxides in the presence of sunlight At ground level, ozone is a pollutant; in the.
Depletion of the Ozone Layer. Introduction: The ozone layer or stratosphere is a belt of naturally occurring gas which envelops the Earth.
Atmosphere and Climate ChangeSection 2 Bellringer.
Objectives Explain how the ozone layer shields Earth from much of the sun’s harmful radiation. Explain how chlorofluorocarbons damage the ozone layer.
Ozone & Greenhouse Effect. What is Ozone? Ozone is a molecule that occurs in the Stratosphere Ozone absorbs harmful UV rays from the sun O 3 + uv O 2.
Stratospheric OZONE - O 3 Forms km above the earth’s surface. Blocks harmful % of UV radiation from reaching earth’s surface. Chemistry: Up to 98%
Atmosphere. Layers of the Atmosphere The atmosphere has four layers: –Thermosphere –Mesosphere –Stratosphere –Troposphere.
Day one Chapter 13 Atmosphere and Climate Change
Atmosphere and Climate ChangeSection 2 Section 2: The Ozone Shield Preview Bellringer Objectives The Ozone Shield Chemicals That Cause Ozone Depletion.
Atoms, Molecules and the Atmosphere Page
Ozone Depletion Sean Farrell. What is it? The ozone layer is a concentration of ozone molecules in the stratosphere. The stratosphere, the next higher.
OZONE LAYER & CFC’S. Understanding Stratospheric Ozone Discovered in 1839 by Christian Schonbein Pale blue, unstable, made up of 3 oxygen atoms Found.
Atmosphere and Climate ChangeSection 2 The Ozone (O 3 ) Shield Ozone layer: layer of the atmosphere at an altitude of 15 to 40 km where ozone absorbs UV.
Ozone Layer O 3 Absorbs the sun’s UV radiation Stratosphere 20-50km above the Earth’s surface.
Essential Questions: 1) What role have humans played in the destruction of the Ozone Layer? 2) Why should humans be concerned about the destruction of.
Ozone O3O3 Ozone Depletion Ozone (O 3 ) –Absorbs harmful UV radiation from sun ozone is produced during lightning storms Chlorofluorocarbons (CFC’s)
The Ozone Shield Section 13.2 Objectives: 1. Explain how the ozone layer shields the Earth from much of the sun’s harmful radiation. 2. Describe the damaging.
Plan ► What is ozone? ► Where is it found? ► What is its origin? ► Importance ► Ozone depletion ► Impacts ► Solutions: protecting the ozone layer.
Atmosphere and Climate ChangeSection 2 Section 2: The Ozone Shield Preview Bellringer Objectives The Ozone Shield Chemicals That Cause Ozone Depletion.
OZONE LAYER oOzone layer is made up from ozone molecule. oAn ozone molecules is made up of three oxygen atom bound together. oIts located 19-48km above.
Ozone Depletion LaQue Nicholas Lirieth Amat. Ozone Friend or Foe ?  Ozone is gas that occurs in Earth’s upper atmosphere and at ground level.  Can be.
Ozone Depletion Samantha Zrillo and Tiffany Culleny.
Unit One: Air $100 $200 $400 $300 $400 AtmosphereAir PollutantsOzoneClimate Change $300 $200 $400 $200 $100 $500 $100.
What is the Ozone Layer? On a piece of scrap paper, write down what you think the ozone layer is.
Air-pollution1 Ozone Depletion: an Example of Pollution Effects on a Global Scale Air pollution can expand beyond a regional area to cause global effects.
AIM: What are the effects of air pollution on the environment Do Now: What is air pollution? Explain why it is harmful.
7 th Grade 11/9 Do Now: What is the ozone layer?
Ozone D. Crowley, 2008.
Objectives Explain how the ozone layer shields the Earth from much of the sun’s harmful radiation. Explain how chlorofluorocarbons damage the ozone layer.
ENVIRONMENTAL SCIENCE Chapter 13 Atmosphere and Climate Change 13.2 The Ozone Shield.
1 Chemistry/Chemistry ACC Blocks 1/2/4 Chapter 1.1 The Story of Two Chemicals Chunk Notes 01/10/11 Dr. Kukla The Death of Socrates, 4 th Century BC.
Depletion of the ozone layer Not the Greenhouse effect.
DAY ONE Chapter 13 Atmosphere and Climate Change Section 2: The Ozone Shield.
Ozone Depletion. Ozone Layer Ozone layer absorbs 97% to 99% of ultraviolet (UV) radiation from the sunOzone layer absorbs 97% to 99% of ultraviolet (UV)
Ozone Depletion Chapter 22. Ozone Gas Unstable gas composed of three atoms of oxygen Naturally exists 12 to 15 miles up in the atmosphere Formed when.
Day one Chapter 13 Atmosphere and Climate Change
Aim: How does ozone get depleted in our atmosphere?
Chapter 13-2 The Ozone Shield.
Incoming Solar Radiation
Ozone Layer The oxygen we breathe is made up of 2 oxygen atoms.
Day one Chapter 13 Atmosphere and Climate Change
Ozone and CFCs Intro.
Environmental Science Witt
The Ozone Shield Unit 2: The Atmosphere.
Atmosphere Composition of air Nitrogen (78%) Oxygen (21%)
Ozone.
Ozone Importance GOOD: Stratosphere Ozone = O3 BAD: Ground (SMOG)
Day one Chapter 13 Atmosphere and Climate Change
Day one Chapter 13 Atmosphere and Climate Change
Day one Chapter 13 Atmosphere and Climate Change
Day one Chapter 13 Atmosphere and Climate Change
Ozone.
Day one Chapter 13 Atmosphere and Climate Change
Atmosphere and Climate Change
Day one Chapter 13 Atmosphere and Climate Change
Ozone Depletion.
DAY ONE Chapter 13 Atmosphere and Climate Change
Temperatures increase as altitude increases in the stratosphere, particularly the upper portion because ozone absorbs energy from the Sun. Temperatures.
Day one Chapter 13 Atmosphere and Climate Change
Chlorofluorocarbons (CFCs) and their impact on Environment
Presentation transcript:

Copyright © Marshall Cavendish International (Singapore) Pte. Ltd. Depletion of the Ozone Layer Problem with ozone: At low altitudes, it can cause pollution problems, and breathing difficulties. It also causes photochemical smog. However, in the stratosphere, the ozone layer shields us from ultraviolet radiation from the sun. This radiation can cause skin cancer, genetic mutations and cataracts. In recent years, this ozone layer is depleting.

Copyright © Marshall Cavendish International (Singapore) Pte. Ltd. CFCs were widely used as propellants for aerosols and as coolants in refrigerators and air conditioners. What is causing the depletion of ozone in the stratosphere? The depletion of the ozone layer is caused by chlorofluorocarbons (CFCs). CFCs are compounds containing the elements carbon, fluorine and chlorine.

Copyright © Marshall Cavendish International (Singapore) Pte. Ltd.

Many countries have now agreed to ban the use of CFCs. Even if the use of CFCs is totally stopped at once, the depletion of the ozone layer will continue for many years due to the CFCs already present in the atmosphere.

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.