Account services

GEMET General Multilingual Environmental Thesaurus

ozone layer depletion

Definition

The fragile shield of ozone is been damaged by chemicals released on earth. The main chemicals that are depleting stratospheric ozone are chlorofluorocarbons which are used in refrigerators, aerosols, and as cleaners in many industries, and halons, which are used in fire extinguishers. The damage is caused when these chemicals release highly reactive forms of chlorine and bromine. Over the past 30 years ozone levels over parts of Antarctica have dropped by almost 40% during some months and a "hole" in ozone concentrations is clearly visible in satellite observations. (Source: WRIGHT)

Themes
  • air
  • climate
  • pollution
Groups
  • EFFECTS, IMPACTS
Related terms
Broader
Other relations
Scope note

Scope note is not available.

Concept URL: http://www.eionet.europa.eu/gemet/concept/5994