final ppnt air pollution Flashcards

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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

A

2005

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
Q

what is used to reconstruct temperature
before thermometers existed

A

proxies

26
Q

examples of proxies

A

tree rings and isotopic
measurements on marine fossils, cave
formations

27
Q

Arctic sea ice extent in September 2012

A

was the lowest in the satellite record

28
Q

Artic ice

A

Once 3m thick in winter, now ~1m

29
Q

Arctic ocean may be ice free in summer within

A

the next three
decades

30
Q

CFCs & Halons

A

Determined to be most at fault for diminishing of
the ozone layer

31
Q

Organic compounds containing lots of bromine
and/or chlorine

A

CFCs & Halons

32
Q

Bromine and chlorine are removed in the upper
atmosphere by

A

reaction with UV light

33
Q

Bromine and chlorine then destroy stratospheric ozone
through

A

free radical reactions

34
Q

each Cl atom can
destroy up

A

to 10,000 molecules of O3

35
Q

Less ozone layer means

A

more skin cancer, cataract damage, harm to
animals and plants, and also melting of ice caps/global warming