Key facts for exams
- Date: 16 September (every year)
- Type: International / UN observance
- Why it is observed: The Montreal Protocol was signed on 16 September 1987.
Frequently asked questions
- When is World Ozone Day observed?
- World Ozone Day is observed every year on 16 September.
- Why is World Ozone Day observed?
- The Montreal Protocol was signed on 16 September 1987.
- Is World Ozone Day a national or international day?
- It is a international / un observance.
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