Ozone molecules in two atmospheric layers
Ozone (O3), a molecule comprised of three oxygen atoms (O), is mainly found in two layers of our atmosphere:
Ozone molecules are chemically the same in both layers, consisting of three oxygen atoms and sharing the same chemical formula O 3. Nevertheless, they influence humans and other living creatures in a totally different way.
Two spectacular phenomena threatened the natural protection
The stratospheric ozone layer protects the Earth’s biosphere from a large part of the ultraviolet radiation emitted by the Sun. Appearing in the beginning of the 1980s, two spectacular phenomena demonstrated that certain human activities threatened this natural protection against ultraviolet rays...
The Belgian Institute for Space Aeronomy (BIRA-IASB) is (and has been) particularly interested in ozone related phenomena: