Ozone Layer

{
  "id": "MLC-T-ENV-020101",
  "term": "Ozone Layer",
  "field": "Environment",
  "definition": "1. The layer of ozone that shields the Earth from the sun's harmful rays.\n\n2. The region of the stratosphere containing the bulk of atmospheric ozone. The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere. Depletion of this layer by several chemicals produced through human activities will lead to higher UVB levels, which in turn will cause increased skin cancers and cataracts and potential damage to some marine organisms, plants, and plastics. The science section (http://www.epa.gov/ozone/science/) of EPA's ozone depletion Web site offers much more detail on the science of ozone depletion.\n\n3. The protective layer in the atmosphere, about 15 miles above the ground, that absorbs some of the sun's ultraviolet rays, thereby reducing the amount of potentially harmful radiation that reaches the earth's surface.\n\n4. The layer of ozone that begins approximately 15 km above Earth and thins to an almost negligible amount at about 50 km, shields the Earth from harmful ultraviolet radiation from the sun. The highest natural concentration of ozone (approximately 10 parts per million by volume) occurs in the stratosphere at approximately 25 km above Earth. The stratospheric ozone concentration changes throughout the year as stratospheric circulation changes with the seasons. Natural events such as volcanoes and solar flares can produce changes in ozone concentration, but man-made changes are of the greatest concern. See stratosphere, ultraviolet radiation.\n\n5. Layer of gaseous ozone (O₃) in the stratosphere that protects life on earth by filtering out harmful ultraviolet radiation from the sun. See stratosphere, ultraviolet radiation.\n\n6. That level of the atmosphere which encompasses a peak in ozone concentrations, roughly 12 to 30 km above the surface.\n\n7. The region of the stratosphere containing the bulk of atmospheric ozone. The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere. Depletion of this layer by ozone-depleting substances will lead to higher UVB levels (a band of ultraviolet radiation), which in turn will cause increased skin cancers and cataracts and potential damage to some marine organisms, plants, and plastics.\n\n8. Layer of gaseous ozone in the stratosphere that protects life on earth by filtering out harmful ultraviolet radiation from the sun.\n\n9. A region within the stratosphere that contains a high amount of ozone. This layer provides a protective shield againist harmful UV radiation from the Sun.\n\n10. Region of the stratosphere containing the bulk of atmospheric ozone. The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere. Depletion of this layer by ozone-depleting substances will lead to higher UVB levels (a band of ultraviolet radiation), which in turn will cause increased skin cancers and cataracts and potential damage to some marine organisms, plants, and plastics.\n\n11. The layer of ozone that begins approximately 15 km above Earth and thins to an almost negligible amount at about 50 km, shields the Earth from harmful ultraviolet radiation from the sun. The highest natural concentration of ozone (approximately 10 parts per million by volume) occurs in the stratosphere at approximately 25 km above Earth. The stratospheric ozone concentration changes throughout the year as stratospheric circulation changes with the seasons. Natural events such as volcanoes and solar flares can produce changes in ozone concentration, but man-made changes are of the greatest concern.",
  "subject": "Air",
  "see_also": [
    "Stratospheric Ozone"
  ],
  "references": [
    "Acid Rain Glossary",
    "SunWise Program Glossary",
    "Terms of Environment",
    "Glossary of Climate Change Terms",
    "Greenhouse Gas Emissions",
    "Glossary for UV Database",
    "Ozone Layer Protection Glossary",
    "Greenhouse Emissions Glossary",
    "My NASA Data Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/ozone-layer/"
}