Class Notes (836,147)
Canada (509,656)
Environment (894)
ENV100Y5 (713)
murk (80)
Lecture

pollution

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Department
Environment
Course
ENV100Y5
Professor
murk
Semester
Winter

Description
Feb 711These lectures will help you understandEarths atmosphereWeather and atmospheric circulationIndoor and outdoor air pollutionStratospheric ozone depletion Acidic deposition and its consequencesOutdoor air pollution can affect climate and harm people and ecosystemsAir pollutantsgases and particulate material added to the atmosphereExample sulphur dioxideOutdoor ambient air pollutionHas decreased in recent decades due to government policy and improved technologies in developed countriesDeveloping countries and urban areas still have significant problems Many pollutants are aerosols which vary in both time and spaceNatural sources can polluteDust stormsHundreds of millions of tonnes of dust are blown westward across the Atlantic Ocean by trade winds every year Waves breakingMajor source of salt moving from ocean to landbased reservoirsFiresPollutes atmosphere with soot and gasesOver 60 million hectares of forests and grasslands burn each year
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