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ENV100Y5 (713)
murk (80)
Lecture

env100 note 39.docx

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Department
Environment
Course
ENV100Y5
Professor
murk
Semester
Winter

Description
ENV100 Lecture NotesJan 23 2012 Atmospheric Science and Weather continued READING Chapter 13Outdoor air pollution can affect climate and harm people and ecosystemsAir pollutantsgases and particulate material added to the atmosphereOutdoor ambient air pollution o Has decreased in recent decades due to government policy and improved technologies in developed countries o Developing countries and urban areas still have significant problems Review composition of the atmosphereMost variablewater vapour2nd mostvariableaerosols from a variety of sourcesMany pollutants are aerosols which vary in both time and space Stratospheric aerosols volcanic originTropospheric aerosols terrestrialanthropogenic originNatural sources can polluteDust storms o Hundreds of millions of
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