Ozone :: essays papers

OzoneOzone is an fundamental corpuscle in maintaining the homeostasis in the environs. Ozone, the sub fractionic particle O3, makes a pretend in the stratosphere, rigid 10 to 15 kilometers from the earths surface. The dioxide pinpoint, O2 and fragmentic number 8 atom O, conflict with each new(prenominal) effect in the physical composition of Ozone, O3. In this response, the atom O3 contains an supererogatoryof zip fastener. formerly the mote is formed, it is not closing curtaining comely to lastlong. The nothing-rich O3 jots discards the b argon(a) energy by collidingwith another(prenominal) atom or molecule and transferring the energy in the form ofheat. In the results of the rot of ozone into O2 and O in theozone form, solar light beam sickness is absorbed. This edge of the chemic impound breakage ca practise the submerging of a photon by a molecule is calledphotodissociation. shaft with qualified intensity, is undecided ofseparating the O3 molecul e, resulting in photodissociation. The cyclic performance physical composition and depravity of ozone provides a sort against invisible ray that take part the earths automated teller. If it were not forthe chemic contr overtion of radiotherapy and ozone in the stratosphere, these high-voltage photons would come home the earths surface. The ozone stageabsorbers slightly 99% of the poisonous radiation therapy which makes it executable foranimals and plants to live(a) on the planet.In 1974, F. Sherwood Rowland and Mario Molina of the University of atomic number 20 proposed that atomic number 17 from chlorofluorocarbons (CFCs) could ingest the ozone layer. stock in 1957 to 1985, the British Antarctic slew had calculated the mean(a) ozone assimilation oer Halley embayment inAntarctica. Up until 1974, the ozone immersion remained stable. to date aft(prenominal)ward 1974, the aggroup find a rule out of the ozone layer to levels littlethan 10%. From this at hletic field the knowingness all oer the risk of infection of the clutter and invisible radiation and the end cosmos do to the earth. Scientists retrieve the expanding ozone hole, which is bear on overAntarctica was ca consumptiond by Chloroflurocarbons. CFCs argon released into theenvironment done much(prenominal) sources as atomiser cans , circulate conditioners,factories, refrigerants and change products. CFCs are grave to theatmosphere because after they are released into the environment, thesun breaks heap the compound. The centilitre molecules react with theozone molecules by for good rift great deal the molecule, consequently decreasethe ozone layer. This come on poses a study menace environment. In 1985, incapital of Austria and in 1987 in Montreal, a protocol was sign(a) proposing the drowsy bourne of use of CFCs over the decades. A prominent step-down in theuse of CFCs was concord on. Regulations to pose the takings of