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Sunday, March 17, 2019

Clean Air Act Title VI Essay -- Environment Geology

Clean Air Act Title VIAn Examination of the Goals, Plans for Implementation, and the Effectiveness at Achieving these Goals Introduction and BackgroundOz i is a inwardness which plays a pivotal role in anthropogenic life. Formed by having three oxygen molecules bond together, it becomes a molecule whose formulaic composing is 03. While contributing to only a small amount of atmospheric makeup, this is a molecule that without which, human life could not survive. Ozone is the one feature which absorbs long wavelength UV radiation (UVB). This radiation has been known to cause strip down cancers, increase risk for glaucoma, and damage the immune system. 90% of all ozone is demonstrate in the stratosphither, with the new(prenominal) 10% making up tropospheric smog (http//earth1.epa.gov/oar/oaqps/peg_caa/pegcaa06.html). fixed between 9 and 31 miles above the Earths surface, ozone is situate in roughly a sphere-like shape through diffusion crosswise the atmosphere. This sphere is c onstantly changing in cycles through the natural crack-up and buildup of ozone.Stratospheric ozone depletion did not become a problem until after the 1950s, when chlorofluorocarbons began to be manufactured. These chlorofluorocarbons were free-base in propellant aerosols, any type of machinery which was required to lower temperature, solvents, drive out retardants (halons) and as byproducts of styrofoam production (http//ess.geology.ufl.edu). While CFCs are highly stable molecules in the lower atmosphere, upon entering the upper atmosphere, they encounter UV radiation. This radiation splits the CFC and releases a free-roaming chlorine molecule. The chlorine molecule destroys ozone at an alarming rate, with one catalytic Cl being able to account for the destruction of 100,000 ozone molecules... ...e preliminary years had shown a general trend of increase in ozone messiness size. Now, the effects of the Clean Air Act being realized. Hopefully, through the efforts of the EPA and other groups throughout the world, the problem of stratospheric ozone depletion can be handled and even decreased. But more than can be done. While the US has championed the cause towards a die world with ozone, many other countries choose to ignore the dangers of UVB through big lobbying by companies that have stakes in the production of CFCs. Without full cooperation from the globose community, the problem will never be completely solved, as shown here (http//ess.geology.ufl.edu). If nations follow the lead of the US, utilizing alternative chemicals as propellants and finding new chemicals for logical argument refrigerants, then the problem of stratospheric ozone depletion will be a problem no more.

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