final ppnt air pollution Flashcards

1
Q

Tropospheric ozone/photochemical smog

A

Major types of Atmospheric Pollution 1

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2
Q

Acid deposition

A

Major types of Atmospheric Pollution 2

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3
Q

Carbon oxides

A

Major types of Atmospheric Pollution 3

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4
Q

Chlorofluorocarbons (CFCs) & halons

A

Major types of Atmospheric Pollution 4

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5
Q

What are CFC and Halons?

A

Cfc is refrigerants, halons used for fire suppression

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6
Q

What are Nitrous oxides?

A

automobile emissions, burning wood, electrical generation

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7
Q

What are Hydrocarbons/VOCs?

A

biogenic sources, Automobiles

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8
Q

What is in the Tropospheric Ozone?

A

Nitrous oxides, Hydrocarbons/VOCs, and Sunshine

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9
Q

Tropospheric ozone is a primary
component of

A

photochemical smog

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10
Q

Effects of Tropospheric Ozone

A

Decrease pulmonary function, Airway inflammation, Increase sensitivity to other toxicants, Increase susceptibility to infection, Crop damage, greenhouse effect

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11
Q

Acid Deposition

A

Mainly produced by
burning coal high in
sulfur

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12
Q

coal high in sulfur is also called

A

soft coal

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13
Q

Sulfur oxides combine readily with water to produce

A

sulfuric acid (H2SO4)

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14
Q

Biggest air pollution problem

A

CO, CO2

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15
Q

Natural sources of CO

A

Forest fires, lightning

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16
Q

CO is primarily result of

A

incomplete combustion

17
Q

How does CO replace oxygen

A

binds to hemoglobin in bloodstream, prolonged exposure increased amount

18
Q

Symptoms of CO Poisoning

A

Cardiac arrhythmia, cherry red skin

19
Q

Atmospheric CO2
levels are at their

A

highest levels in 800,000 years

20
Q

Suess Effect

A

relative concentration of 14C has progressively declined

21
Q

10 of the warmest years on record have occurred since

22
Q

Earth’s temperature has risen by

A

0.14° F (0.08° C) per decade since
1880

23
Q

Arctic sea ice extent is now declining at a rate of

A

13.4% per decade

24
Q

Evidence of climate change

A

sea surface temperature warming, increase in global average air temp

25
what is used to reconstruct temperature before thermometers existed
proxies
26
examples of proxies
tree rings and isotopic measurements on marine fossils, cave formations
27
Arctic sea ice extent in September 2012
was the lowest in the satellite record
28
Artic ice
Once 3m thick in winter, now ~1m
29
Arctic ocean may be ice free in summer within
the next three decades
30
CFCs & Halons
Determined to be most at fault for diminishing of the ozone layer
31
Organic compounds containing lots of bromine and/or chlorine
CFCs & Halons
32
Bromine and chlorine are removed in the upper atmosphere by
reaction with UV light
33
Bromine and chlorine then destroy stratospheric ozone through
free radical reactions
34
each Cl atom can destroy up
to 10,000 molecules of O3
35
Less ozone layer means
more skin cancer, cataract damage, harm to animals and plants, and also melting of ice caps/global warming