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EESA10H3 (491)
Lecture 2

Lecture 2 Study Guide

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Environmental Science
Jovan Stefanovic

Human Health and the Environment Lecture 2: Airborne Hazards and Human Health Announcements The final is going to be cumulative. Professor does not yet know of the midterm date. She will post it on the intranet as soon as she gets information on it. The midterm examination will most likely be after the reading week but not 100% guaranteed. The professors new office hours are 4PM-6PM Wednesday before lecture in SW410. Change in Teaching Assistant Wing-Shun Wu for P-Z online lecture (LEC 60) Office Hours Friday 12PM-2PM Announcement on Readings Book and presentations are enough for the exams Only the topics that the professor covers in class look through the text, otherwise there is nothing additional Airborne Hazards Today we will discuss two types of air pollutants 1) Outdoor air pollution 2) Indoor air pollution What are the major sources of air pollution? They are natural and manufactured Natural include forest fires, volcanoes most of them that we cannot avoid Manufactured has different kinds of industry and the burning of fossil fuels Outdoor Air Pollution Listed are 6 common air pollutants They are regulated by the U.S. Act it is called the Clean Air Act of U.S.A. A strict threshold is placed on these six pollutants Discuss pollutants that are not regulated in Canada or U.S. as they still represent a hazard to human health Ozone Is a chemical gas that has three oxygen atoms combined There are two different types of ozone One is good ozone ozone layer in stratosphere protects us from harmful ultraviolet (UV) radiation There are ozone holes and problems with the pollution (is the good ozone) and this ozone is not formed on ground level It is formed in the upper level of atmosphere What is the subject of concern is the ground level of ozone ozone formed just a little bit above the ground and how this ozone is formed Life Support EESA10H3 S
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