Lecture 12 - EARTH AND PLANETARY SCIENCES 80 Professor...

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EARTH AND PLANETARY SCIENCES 80 Professor Berry 3/3/10 Lecture 12 ASUC Lecture Notes Online is the only authorized note-taking service at UC Berkeley. Do not share, copy or illegally distribute (electronically or otherwise) these notes. Our student-run program depends on your individual subscription for its continued existence. These notes are copyrighted by the University of California and are for your personal use only. D O N O T C O P Y Sharing or copying these notes is illegal and could end note taking for this course. ANNOUNCEMENTS With all the rain, I hope all of you guys are keeping up with your Strawberry Creek observations. You need to compare your observations with rain and no rain. This is also the time that new vegetation is coming up. LECTURE Last week, our guest lecturer touched on the topic of air quality. The San Francisco chronicle also published an article about the price we pay for good air quality. Those who live in the Valley have the worst air quality in the state, and maybe even in the whole country. For those of you who have lived in Los Angeles should know a smoggy day versus a not smoggy day. The differences are caused by emissions of particles from several sources. When you burn things you release water vapor, carbon dioxide, nitrous oxide and organic particles that did not burn. Over the years people have realized that the particles that you breathe in affect your health. It is also those particles react with the sunlight to create smog. In unpolluted air, carbon dioxide is a relatively small proportion of the whole, but it has a great impact. What is air pollution? Air in this city is impacted by two primary sources. The first one is transportation, which is the exhaust from buses and cars. The other source is power plants of all sorts. Burning anything, like in outside cooking, contributes to air pollution. Air pollution is growing because there is more and more traffic, people are using more tools, and of course industrialization. The mid-19 th century is when air pollution began, because people started to burn lots of coal. When you burn coal you get a lot of unburned stuff. How is
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This note was uploaded on 09/10/2010 for the course EPS 207 taught by Professor Dreger,d during the Spring '08 term at University of California, Berkeley.

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Lecture 12 - EARTH AND PLANETARY SCIENCES 80 Professor...

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