European Stars And Stripes (Newspaper) - March 11, 1987, Darmstadt, Hesse Scientists preparing a balloon for launch during an Ozone Experiment at Mcmurdo station in Antarctica last year. Complex chemical process Cox news services bewildering Chain of chemical re actions 15 Ruvo Vert i depletion of Ozone trom the Stralo sphere. Scientists say Del Venn 12 and 30 Miles above Ifie Carolfi r sufi acc. Ufa to Ioctl Ramdhon acts on mole Yukii oxygen Tho common Orpi Clay Tasea Shabto Gas Hinl is Lomick by two oxygen atoms bound loge fiet under Iho Ulm Vieluf a Jialin Ironi Iho Sun molecular oxygen spins Mlo Vivo sep Urato o Itom lend to destroy Ozone in llk."lr.-Iri-, to says to thinks ii now May he a i Lido i enough of to Ozone to Jival in a Levels of ultraviolet solar radiation sometime m tit Noel Century f. Sherwood hoc at. .1 professor of chemistry at the University of California Al Irvine said millions of ions of the chemical Liolio cd to be destroying Hie Ozone Havo Arcady Boon produced dirt harm i reached the is Ralora Porc even if production i to hailed immediately he said those chemicals would continue Loc Jcu Alo through the until Hoy eventually floated into the Stralo Shuro to need to mow id to need to move Rowland said in an Inlet wow what vie really Don l know is whether we can act in Lime even Ozone is a Gas that la armed when three oxygen atoms bind together. In the Surato Phem in traps Ute raviolo radiation in sunlight and keeps in Iram Earth s surface it allowed to pen Liale the atmosphere ultraviolet radiation would cause skin cancer harm human immune systems and damage crops and aquatic resources scientists say in 1974, Rowland and Mario j. Molina also of he University of California Al Irvine published a paper in which they warned that substances called Chlora fluorocarbons or rfcs set off chains of chemical reactions that break up Ozone molecules in a draft risk assessment last year the environment Al Protection Agency warned of widespread harm irom increased ultraviolet exposure including an estimated 40 million additional cases of skin cancer if emissions of rfcs continue to grow for the next 65 years the recent App Oriance of Annuel holes Over Antarctica where the Mono consent of the atmosphere is depressed by As much As 50 percent for several weeks Belore returning to near Normal Levels has provoked new scientific concern thai the Gas May be leaving the atmosphere laser than was previously believed a physicist who participated in a study of the Antarctica phenomenon last year said thai Whilo he is no As pessimistic As hot land about the prospects Lor controlling Csc emissions and protecting Iho Ozone Well to damned irresponsible fools in to Don t do something soon " the physicist Rol Ort l Dezafra of the state University of now York added that although data from the Antarctica i Udy still has not been Tully Analysed his Gul Locking was that rfcs play a Parl in causing the holds to appear. Coca Are chemically stable and therefore persist in the environment Tor years. However like All molecular gases they arc decomposed a ultraviolet ight in a process Calford Photolysis. In the lower atmosphere they Are protected from this process by the Taci that Ozone in the stratosphere filters almost All Ull raviolo Light irom incoming sunlight floating upward. The rfcs eventually reach he stratosphere where ultraviolet Light Breaks them Down. The process a closes a chlorine atom which quickly Breaks Down a molecule of Ozone. Al the Lime re quid and Molina published choir 1974 paper describing this process the primary use of rfcs was As proper lands to aerosol sprays. Within a Tew years americans had written More letters to members of co Gross on the Ozone layer than they had on any Orter std Jeff o
