Ozone & Protocols
Environment · ओज़ोन और प्रोटोकॉल · 12 facts
1
Ozone layer in stratosphere protects from UV radiation
2
Montreal Protocol 1987 banned ozone depleting substances
3
CFCs chlorofluorocarbons are major ozone depleting chemicals
4
Ozone hole discovered over Antarctica in 1985
5
September 16 is International Day for Ozone Layer
6
Kigali Amendment 2016 added HFCs to Montreal Protocol
7
Vienna Convention 1985 was first treaty on ozone protection
8
Dobson Unit measures thickness of ozone layer
9
Ozone layer is present at 15 to 35 km altitude
10
Ground level ozone is a harmful pollutant in smog
11
Montreal Protocol is most successful environmental treaty
12
HCFCs are transitional substances being phased out globally