Tag Archives: ozone hole

R22 phase out dates

Hole in ozone layer is discovered over Antarctica in 1985.Because of this hole, Ultraviolet light can reach the earth and harm both the humans (skin cancer) and plants. In 1987, USA and other developed nations signed Montreal Protocol as an effort to protect ozone layer by reducing the use of CFC and HCFC .In 1993, the Schedule to end CFC and HCFC are announced. The production of CFC ended on 1996 and all ozone depleting substances (HCFC including R22) will face a complete ban on 2030.

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