7th Chemistry - Air Quality

St. George's College

Subject: 7th CHEMISTRY

Teacher's notes

Objectives

Class: Air Quality

Vocabulary Link and Learn

Date: In‐Class Survey

November 2nd

Prepared by

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7th Beethoven ‐ Air Quality Name

Reward Blackmarks

Name

Ariana

Luis

Gabriel

Andrea

Andrea

Sebastián

Abraham

Ivanna

Giacomo

Camila

Fabiana

Carlos

Sinead

Aarón

Liliam

Paola

Francesca

Enrique

Rodrigo C.

Alessandra

Andres

Irma

Stefano

Sophia

Jean Pierre

Naomi

Diego

Kiara

Rodrigo H.

Christopher

Reward Blackmarks

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7th Mozart ‐ Air Quality Name

Reward Blackmarks

Name

Nicole

Roberto M.

Luis

Giancarlo

Luciana

Fiorella

Antonella

Gabriela

Valeria Ch.

Steffano

Valeria C.

Javier

Sylvana

Roberto R.

Analucía

Diego

Camila

Luis Fernando

Franco

Sebastián

Ramiro

Julio

Sara

Sherley

Alicia

César

José Luis

Vilma

Sergio

Alessandra V.

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Let's remember previous learned concepts...

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New knowledge beginning......

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EPA - USA

TOXIC AIR POLLUTANTS • Also known as hazardous air pollutants, are those pollutants that are known or suspected to cause cancer or other serious health effects, such as reproductive effects or birth defects, or adverse environmental effects.

EPA is working with state, local, and tribal governments to reduce air toxics releases of 188 pollutants to the environment.

• Examples of toxic air pollutants include benzene, which is found in gasoline; perchlorethlyene, which is emitted from some dry cleaning facilities; and methylene chloride, which is used as a solvent and paint stripper by a number of industries. Examples of other listed air toxics include dioxin, asbestos, toluene, and metals such as cadmium, mercury, chromium, and lead compounds.

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EPA - USA

AIR QUALITY INDEX ‐ AQI • Clean Air Act ‐ develop nationally uniform index and regulate reporting “Unhealthy” for ozone means same in Lima, OH as Los Angeles, CA. • Includes pollutants with national ambient air quality standards: O3, PM, CO, SO2, NO2 • Based on health effects information from review of standards

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EPA - USA

AIR POLLUTION • Air pollution comes from many different sources: stationary sources such as factories, power plants, and smelters and smaller sources such as dry cleaners and degreasing operations; mobile sources such as cars, buses, planes, trucks, and trains; and naturally occurring sources such as windblown dust, and volcanic eruptions, all contribute to air pollution.

• Air Quality can be affected in many ways by the pollution emitted from these sources.

• These pollution sources can also emit a wide variety of pollutants. The EPA has these pollutants classified as the six principal pollutants (or criteria pollutants‐as they are also known).

• These pollutants are monitored by the EPA, as well as national, state and local organizations.

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EPA - USA

CLEAN AIR ACT • The Clean Air Act provides the principal framework for national, state, and local efforts to protect air quality.

• Under the Clean Air Act, OAQPS is responsible for setting standards, also known as national ambient air quality standards (NAAQS), for pollutants which are considered harmful to people and the environment.

• OAQPS is also responsible for ensuring that these air quality standards are met, or attained (in cooperation with state, Tribal, and local governments) through national standards and strategies to control pollutant emissions from automobiles, factories, and other sources.

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AQI FOCUS GROUPS Parents – asthmatic children

Journalists Elderly – chronic lung disease

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OZONE LEVELS

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Objectives • Study the chemical composition of the air and discuss the ideal of air quality in relation to the idea of human and environmental health.

• Discuss the idea of air pollutant and study some of them.

Note: All, or most, of the objectives will be covered during class time, however the student must be responsible for those objectives not covered or concluded.

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Vocabulary • • • • •

Air Pollution Acid Rain Fumes Hazard

Note: Most of the vocabulary words will be covered during class time, however the student must be responsible for those words not covered or concluded.

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Link and Learn You can visit the following websites to improve your understanding on the present topic: • • • • • •

www.eea.europa.eu/ www.epa.gov www.breathingearth.net/ http://science‐learning2009.wikispaces.com http://learningandscience.blogspot.com http://libraryatstgeorge.blogspot.com

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Prepared by

Gerardo LAZARO Science Lead Teacher Email: glazaro@sanjorge.edu.pe Wiki: http://science‐learning2009.wikispaces.com Blog: http://learningandscience.blogspot.com Twitter: http://twitter.com/glazaro

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