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Enviromental Science > Air Quality > Flashcards

Air Quality Flashcards

1
Q

Who determines air quality and regulates activities as a federal agency?

A

Environmental Protection Agency EPA

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2
Q

Who determines air quality and regulates activities on state level?

A

Arizona Department of Environmental Quality ADEQ

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3
Q

At what level does the EPA dictate activities?

A

101 or above

“Unhealthy for sensitive groups”

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4
Q

What does Ozone do

A

Protects us from Suns harmful rays

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5
Q

What happens when Ozone occurs at ground level?

A

Mixes with air we breathe and causes health risks

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6
Q

Levels of air

Ground up

A

Troposphere
Stratosphere
Mesosphere

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7
Q

How is Ozone created?

A

Fossil fuels + sunlight

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8
Q

When light is involved in reactions

A

Photochemical Reactions

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9
Q

Particulate Matter (PM)

A

Small airborne solids

Can be solid or liquid

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10
Q

PM pollution consists of materials including…

A

Dust, smoke, soot

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11
Q

Particles come from…

A

Natural sources and human activities

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12
Q

Determinants of PM

A 
Weather Patterns
Wind
Inversion
Turbulence 
Precipitation 
Topography
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13
Q

Does size matter?

A

Larger particles stay trapped in nose/throat

Small particles reach the lungs

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14
Q

What is an inversion

A

An inversion is an extremely stable layer of the ground level atmosphere that forms over areas. Temperature inversions trap pollutants close to the ground.

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15
Q

Main sources and categories of all the pollutants

A

Stationary Sources
Mobile sources
Natural sources

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16
Q

Primary Pollutants

A 
CO
CO2
SO2 
NO
NO2
17
Q

The 5 main Air Quality types

A 
Ozone
Particulate matter
CO
NOx
SOx
18
Q

Secondary Pollutants

A

SO3
HNO3
H3SO4
O3

19
Q

Problems with bad air

A

Asthma
Premature death
Lung cancer
Heart attack

20
Q

What can we do to help air quality?

A 
Drive less
Tires inflated 
Carpool
Refuel after 6pm
Use alternative fuel vehicles
21
Q

Other Gaseous pollutants…

A

SO2
NO2
CO

Enviromental Science (4 decks)

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