Chemistry, asked by lalita9815, 11 months ago

How has the ozone layer been affected by the human use of chlorofluorocarbons? What steps have been proposed to save the ozone layer?

Answers

Answered by maniverma
0
Chlorofluorocarbons (CFCs),chemicals found mainly in spray aerosols heavily used by industrialized nations for much of the past 50 years,are the primary culprits in ozone layerbreakdown. ... The ozone layer above the Antarctic has been particularlyimpacted by pollution since the mid-1980s.

Ozone depletion is the sharp reduction of ozone in the stratosphere due to chlorofluorocarbons (CFC’s) used as refrigerants and in fire extinguishers. There is a layer of ozone in the stratosphere. It acts as a natural sun-block and shields us from the UV radiations of the sun which are dangerous to living organisms. Different chemicals which cause natural destruction of ozone shield are CFCs (Chlorofluorocarbons), CH4 (Methane), N2O (Dinitrogen oxide). Steps to prevent ozone layer 16th September, 1996 was celebrated as 'International Day for the preservation of Ozone Layer'. Its main aim is to create awareness on ill-effects caused by ozone layer depletion. This was drawn by UNEP (United Nations Environment Programme). *Montreal Protocol was formed in the year 1987 with an aim of stopping the usage of CFCs. It also strengthens the order that Ozone Depleting Substances should not be produced and consumed. *Usage of public transport is encouraged with limited private driving to control vehicular emissions. *Usage of eco-friendly household cleaning products as chemical cleaning agents contain lot of toxic chemicals which might destroy ozone.*Pesticide usage should be reduced by natural remedies as they contain toxic chemicals. *Rocket launches should not contribute for ozone depletion. Rocket engines release ozone destroying compounds in the upper stratosphere near the ozone. *Dangerous nitrous oxide should be banned.


Similar questions