final in class notes

final in class notes - Pollutants 4/18/2008 10:04:00 AM...

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Pollutants 18/04/2008 09:04:00 What are they? Particles that are small in the air. They have a long residence time there  because they are so small. The greatest mass of aerosol is found in the size  range of 10 microns.  A piece of paper is 100 microns thick… an aerosol is about 1/10 of this physical characteristics of aerosols usually solid, sometimes liquid (oil), irregular shapes (unless liquid), soluble or  insoluble why are they important? Active in the formation of precipitation Block out sunlight—impact the climate Air pollution—eye and respiratory problems- visibility- defoliation- urban grime  and corrosion Acid rain o Ecological impact o Cultural, material impact we find most aerosols about 1 km above the surface of the earth localization of aerosol o type of region continental-urban…. 1,000,000 continental rural… 10,000
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maritime ocean…. 1,000 o the highest pollution is where the highest population is at!! Increase in CO2 after world war II Stokes law V=Kr^2 o V= terminal velocity o K- constant (10) o R= radius “Fat things fall fast” when it comes to micro-sized particles When you double the radius, the terminal velocity increases by four
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This note was uploaded on 05/03/2008 for the course AER 118 taught by Professor Schroder during the Spring '08 term at Miami University.

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final in class notes - Pollutants 4/18/2008 10:04:00 AM...

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