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Environmental Biology > Air Pollution > Flashcards

Air Pollution Flashcards

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0
Q

From the closest to the surface to the furthest away, what are the layers of the atmosphere?

A

Troposphere, stratosphere, mesosphere, thermosphere

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1
Q

What is the percentage breakdown of gasses in the atmosphere?

A

78% nitrogen, 21% oxygen, 1% argon

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2
Q

Which layer contains the ozone layer?

A

Stratosphere

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3
Q

Tropospheric ozone is a primary or secondary pollutant?

A

Secondary

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4
Q

What are the 7 major classes of air pollutants?

A

Particulate matter, NO2, SO2, methane and hydrocarbons, carbon oxides, tropospheric O3, and hazardous air pollutants (ex: Pb)

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5
Q

What color is NO2?

A

Red

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6
Q

What does NO2 contribute to?

A

Smog (photochemical), and acid precipitation

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7
Q

What produces NO2?

A

Exhaust, industry, electricity production

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8
Q

What produces sulfur dioxides?

A

Coal burning

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9
Q

What gas is the main component of natural gas?

A

Methane

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10
Q

When was lead phased out of gasoline?

A

1980s

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11
Q

What form of toxin is lead?

A

Neurotoxin

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12
Q

The majority of outdoor air pollution is from what sources?

A

Natural

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13
Q

What are some natural sources of outdoor air pollution?

A

Dust storms, volcanoes, fires

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14
Q

What volcano erupted in the Philippines in 1991, dropping global temperatures by .3 degrees C?

A

Mount Pinatubo

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15
Q

What is the leading source of human air pollutants?

A

Transportation

16
Q

Gray air smog is also called

A

Industrial smog

17
Q

Gray air/industrial smog contains

A

Soot, sulfur, CO, CO2 from industrial pollution and fossil fuel combustion

18
Q

Photochemical smog is also called

A

Brown air smog

19
Q

What conditions cause photochemical smog?

A

Hot sunny days in urban areas

20
Q

What authorized the EPA to enforce limits on air pollutants?

A

The US Clean Energy Act (1970)

21
Q

Do indoor or outdoor spaces have more pollution?

A

Indoor

22
Q

What are the two main types of indoor air pollution?

A

Smoke and radon gas

Environmental Biology (13 decks)

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