7.1 - Introduction to Air Pollution (Daily Video 1) Summary : In this video, we'll introduce primary versus secondary air pollutants and discuss how the Clean Air Act has improved air quality in the US for criteria air pollutants. Objectives : Identify the ___________ and __________ of air pollutants. Primary and Secondary Pollutants - What is the Difference? Air Pollution o Anything in the ________________ that is ___________ to humans or the environment. Primary Pollutants are emitted ___________ into the atmosphere. o Examples: § Natural: _________, volcanic ash, ______ given off by plants § Anthropogenic: products of _________________ of fossil fuels (CO , NOx, SO ) Secondary Pollutants form once they are in the ________________, usually by combining with _________ vapor or other atmospheric __________. o Examples: § _________, ______ rain In the clouds below, identify primary and secondary pollutants. Criteria Pollutants of the Clean Air Act The ______ established the National Ambient Air Quality Standards (________) in 1970 for ______ criteria pollutants deemed most ____________ to human health. o Sulfur dioxide (_____) o Particulate matter (_____) o Lead (_____) o Ozone (_____) o Nitrogen dioxide (_____) o Carbon monoxide (_____) Remember these with the mnemonic ___________
Successful Reduction of Lead _______ was used as a ____________ additive since the 1920s. In the ________, the health impacts of lead exposure were ___________ heavily. Low-level lead exposure health impacts: o Children § __________ § _____________ disorders § ___________ IQ § Reading and _____________ disabilities § ________ damage o Adults § _______________ § _______________ disease Success of Phasing Out Leaded Gasoline and Atmospheric Lead Describe how the Clean Air Act has been successful in the regulation of lead.
Summary 1. Atmospheric pollution can be ___________ or ________________. 2. Atmospheric pollutants can be emitted ____________ into the atmosphere (___________) or can form once in the atmosphere (_____________) by combining with ___________ vapor and other elements, often with energy from _____________. 3. The Environmental Protection Agency's _________ Air Act has been _____________ in reducing criteria air pollutants. a. ____________ 4. ________ is particularly harmful to ______________ and the _________ (National Ambient Air Quality Standards) monitor atmospheric lead. 5. *As of _______, UNEP reports only ________ countries are still using leaded gasoline. 7.1 - Introduction to Air Pollution (Daily Video 2) Summary : The video will investigate how the burning of coal and diesel fuels can affect air quality and the consequences of combustion on the atmosphere. Objectives : Identify the ___________ and __________ of air pollutants. Explain ________________ to an experimental procedure that will _______ results. Combustion of Fossil Fuels Releases Fossil Carbon Combustion of fossil fuels releases the __________ stored during ________________ (remember glucose = _________). o All fossil fuels contain ________ and ___________. o Combustion of carbon creates carbon dioxide (____). o This carbon has not been in the _________________ for _____________ of years. _______ contains many other elements absorbed by ________ during their life or trapped in ______________ along with the ___________ matter. o These ________________ are also released during combustion. o Specific elements vary by __________. Formation of Coal Identify the steps of the formation of coal in the graphic organizer below.
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