International Day for the Preservation of the Ozone Layer

International Day for the Preservation of the Ozone Layer is dedicated to saving the protective ozone layer. This component of the atmosphere is in no way inferior in its importance. Officially approved by the UN General Assembly in 1994, it is celebrated on September 16th.

History

The Earth’s ozone layer is a gaseous envelope that absorbs excess solar ultraviolet radiation. It acts as a natural regulator of the temperature of the planet.

The question of the necessity and role of the ozone layer was actively studied in the 20th century. The results of a study in the 1970s showed the protective layer was gradually becoming thinner, and in some of its places, ‘holes’ have formed. They were found over the Arctic and Antarctica. These locations are explained by the fact that acid clouds accumulate over the poles, formed from toxic substances released as a result of human industrial activity.

In 1985, the Vienna Convention was signed, according to which 28 countries pledged to participate in large-scale research. Their goal is to identify ways to slow down or stop the destruction of the ozone layer. In 1987, a list of harmful substances used in industry was presented. Eliminating them made it possible to significantly slow down the destructive processes. Research in this area is still ongoing.

Interesting facts

• The thickness of the ozone layer does not exceed 3 mm.
• Ozone can be smelled during a thunderstorm.
• During the First World War, this gas was used as a disinfectant.

How to take part

Learn more about the ozone layer and the properties of the gas itself on World Ozone Day. Attend lectures on the subject, which are usually held at universities. You can also make a donation to organizations dedicated to improving the environment.

When is International Day for the Preservation of the Ozone Layer celebrated in 2023?

International Day for the Preservation of the Ozone Layer is observed on September 16 each year.

Observations