air pollutants Flashcards

1
Q

layers of the atmosphere

A
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
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2
Q

atmosphere

A

gaeous layer that envelopes the earth

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3
Q

functions of the atmosphere

A

protects from rays
allows in visible light and infared raditation
weather and climate occur
sink for some gases- oxygen adn carbon dioxide

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4
Q

Troposphere

A

weather aqnd cliamte….life exists here adn 90% of molecules

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5
Q

Stratosphere

A

ozone layer

airplanes fly

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6
Q

Thermosphere

A

abosirbs UV rays and reflexts radio waves back to earth

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7
Q

Mesosphere and Exosphere

A

nothing really

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8
Q

clean air act

A

allowed the EPA to set limits on the amount of air pollutants in the US - state level
regulates NOSCLP

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9
Q

nonattainment area

A

urban areas that contain higher levels of pollutants than are recommended by the EPA on the basis of health standards

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10
Q

where is there extreme smog?

A

LA

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11
Q

ways to imporve air quality

A

carpool, public transportation, drive and fly less, high tire pressure, recycle, catalytic converters, coices in terms of consuming products

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12
Q

NOx

A

inhibits plant growth, acid rian, global warming, deplete ozone, photochemical smog

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13
Q

CO2

A

global warming

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14
Q

hydrocarbons

A

photochemical smog, global warming

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15
Q

CO

A

global warming

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16
Q

particulate matter

A

reduce visibility, block sun, corrosive, causes erosion

17
Q

pH scale

A
measures the acidity or basicity of a solution
1-14
7 neutral
0 acidic
14 basic
18
Q

pH of 5

A

1 x 10 -5 = .00001

19
Q

acid deposition

A

type of air pollution that conatins nitrogen adn sulfuric acids that fall to the ground from the atmosphere as precipation or as dry acidic particles

20
Q

sources of N

A

cars

21
Q

sources of s

A

industries - burning coal

22
Q

pH of mormal rain

A

5-6 - because of dissolved CO2 in the air

23
Q

what way to winds blow

A

west to east

biger issue in the east

24
Q

EFFECTS OF ACID RAIN

A
lake acidfication -decrease pH of water
corode 
fragile egg shells
forest deline - fragile seeds ruind bark
soil acidfication
25
Q

lake erie

A

not acidied because of limestone basin

26
Q

n based acid deposition

A

2NO2 + H2O - HNO3 + HNO2

27
Q

s based acid deposition

A

SO2 + O2 - SO3+SO3+ H2O - SO4

28
Q

where is ozone a pollutant

A

in troposphere

29
Q

what depletes the ozone

A

CFCs

30
Q

montreal protocol

A

international ban on CFCs to help ozone

31
Q

thermal inversion

A

a situation in which a layer of warm air (an inversion layer) lies over a layer of cool air.

If an inversion occurs over a city, it results in air pollution, because some pollutants, such as smoke or soot, which are usually removed by normal weather processes, are held at the surface by the cool layer

32
Q

CFC equations

A

CL + O3 - CIO + O2
CIO + O - CL + O2
= O3 + O = 2O2

33
Q

photochemical smog

A

2 primary pollutants (NOx and hydrocarons from cars)
-forms 2 secondary pollutant (O3 and PANs)
needs UV energy - no wind = thermal inversions

34
Q

photochemical smog equation ozone

A

1). ozone production
NO + O2 - NO2
NO2 + O2 + sun - NO + O2 + O
O+ O2 - O3

35
Q

photochemical smog equation PANs

A

hydrocarbon + NO2 + O2 + sun - PANS

36
Q

industrial smog

A

unburned carbon from coal = soot

particulat ematter - black

37
Q

industrial smog equations

A

SO2 (coal) + H2O (air) - H2SO4

H2SO4 + NH3 (air) - NHSO4 (solid ammonia sulfate