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Welcome! Please read the board carefully and get out paper for notes. Please read the board...

Date post: 17-Jan-2018
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Or is it????
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Welcome! Welcome! Please read the board Please read the board carefully and get out carefully and get out paper for notes. paper for notes.
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Page 1: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Welcome!Welcome!

Please read the board carefully Please read the board carefully and get out paper for notes. and get out paper for notes.

Page 2: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Home sweet home . . .Home sweet home . . .

Page 3: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Or is it????Or is it????

Page 4: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Breathing!Breathing!

Some basicsSome basics

Page 5: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

What is in our atmosphere?What is in our atmosphere?

Normal chemical composition of our atmosphere: (N2) 78%

(O2) 21%

Trace gases (water, argon, carbon dioxide, other pollutants) 1%

Page 6: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Pollution terminologyPollution terminology

• Pollutant• Source• Effect

Page 7: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Article: EPA Proposes New Article: EPA Proposes New Ozone StandardOzone Standard

• EPA = Environmental Protection Agency• As you read, label the pollutant, source(s)

and effects

Page 8: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Pollution unitsPollution units

Parts per thousand (ppt)Parts per million (ppm)Parts per billion (ppb)

Page 9: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

The air pollution flip chart for The air pollution flip chart for visual learnersvisual learners

• Draw and label the atmospheric layers in black or blue pen.

Page 10: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Primary pollutants come directly Primary pollutants come directly from a sourcefrom a source

• Mobile sources

Page 11: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Mobile sourcesMobile sources

Page 12: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Stationary SourcesStationary Sources

• Power plants

Page 13: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

RefineriesRefineries

Page 14: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Secondary pollutants form in Secondary pollutants form in atmosphere as gases reactatmosphere as gases react

• Smog, ground level ozone and acid rain

Page 15: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Add the sources to the three flip Add the sources to the three flip chartscharts

Page 16: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

We're #?

• . . . .for the number of days exceeding allowable ground level ozone levels.

• American Lung Association State of the Air

Page 17: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Measuring pollutantsMeasuring pollutants

• parts per thousand = ppt• parts per million = ppm• Parts per billion = ppb• Parts per trillion = ppt (must know from

context)

Page 18: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Clean Air ActClean Air Act

• Passed by Congress in 1970, updated in 1990, ‘93, 97, 2008.

• Required EPA (Environmental Protection Agency) to identify criteria pollutants and to establish minimum standards: EPA came up with NAAQ’s

Page 19: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

National Ambient Air Quality National Ambient Air Quality StandardsStandards

• Six criterion pollutants: NOx, SOx, O3, Pb, CO, particulates

• Established minimum standards: 1hr and 8 hr

• EPA is working to have greenhouse gases added by Congress to the NAAQs

Page 20: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Houston’s special issuesHouston’s special issues

• 1/3 of all US petrochemicals pass through our refineries

• Refineries separate crude oil into many different products from asphalt tar to gasoline to butane

Page 21: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Refineries create carcinogenic Refineries create carcinogenic air pollutantsair pollutants

Benzene, toluene, ethylbenzene, xylenes

Page 22: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

So what is being done about So what is being done about this? - City monitoringthis? - City monitoring

Page 23: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

45 mobile monitoring stations45 mobile monitoring stations

Page 24: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

State monitoringState monitoring

• Flexible permitting – each facility has total cap emissions limit, but flexibility in how they meet that limit.

• TCEQ issues permits for emitting certain amount of pollutants

• Facilities do “self reporting”

Page 25: Welcome! Please read the board carefully and get out paper for notes. Please read the board carefully and get out paper for notes.

Check your understanding!Check your understanding!

• What is the difference between a primary and a secondary air pollutant?

• Give an example of a mobile source.• Give an example of a stationary source.• Which layer of the atmosphere are you in

RIGHT NOW?!!!!• What is the normal chemical composition

of our atmosphere?


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