Lecture2210fc

Lecture2210fc - Chemistry 83 11/23/10 1 Adverse Impacts of...

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Unformatted text preview: Chemistry 83 11/23/10 1 Adverse Impacts of Technologies Society assumes oversight of technologies Clean Air Act (CAA) Environmental Protection Agency (EPA) Waste matter and pollution became widespread as population and industrial production increased http://www.epa.gov/superfund/program s/er/resource/images/d1_06.jpg http://www.worldofstock.com/slides/M ES2417.jpg http://www.explorepahistory.com/ima ges/ExplorePAHistory-a0b6r5- a_349.jpg Public complained, but generally accepted trade-off of environmental degradation for benefits provided by industries Chemistry 83 11/23/10 2 Cunningham/Saigo, Environmental Science, McGraw, 2001, 19. In 1962 society became concerned with environment In 1962 Rachel Carson published a book, Silent Spring , in which she correlated the loss of song birds to the bioaccumulation of DDT insecticide in the environment. She died in 1964 without knowing that she had started the environmental move- ment. Her contributions were recognized when she was awarded the Presidential Medal of Freedom in 1980. Congress responded to concerns of public with CAA and EPA CAA, Clean Air Act, 1970, authorized the development of comprehensive federal and state regulations to limit emission of pollutants into air EPA, Environmental Protection Agency, was created on May 2, 1971 in order to implement the various requirements included in the CAA of 1970 http://www.epa.gov/air/caa/caa_history.html Chemistry 83 11/23/10 3 Environmental Protection Agency was given a broad charge and broad authority Charge Protect ecosystems Protect materials Protect visibility in troposphere (portion of atmosphere nearest earth) Authority Set standards for pollutants Monitor for violations of standards Enforce compliance with standards (fines) http://www.epa.gov/air/airtrends/sixpoll.html Six principal pollutants were to be regulated by EPA under Clean Air Act (1970) CO - carbon monoxide PM - particulate matter (PM) SO x- sulfur oxides NO x- nitrogen oxides O 3- ozone (tropospheric) Pb - lead Each will be briefly described http://www.epa.gov/air/oaqps/peg_caa/pegcaa11.html Chemistry 83...
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Lecture2210fc - Chemistry 83 11/23/10 1 Adverse Impacts of...

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