air pollution Flashcards

1
Q

what is the atmosphere mostly comprised of?

A

Nitrogen (78.08%)

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2
Q

what does the atmosphere do?

A

Prevents UV radiation

redistributes water in hydrologic cycle

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3
Q

what are the 3 types of air tranport

A

global, regional, local

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4
Q

does air temperature increase or decrease with altitude?

A

decreases (the opposite of a fart)

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5
Q

what are primary air pollutants?

A

harmful substance emitted directly into the atmosphere

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6
Q

what are secondary pollutants?

A

harmful substance formed in the atmosphere reacts with a primary air pollutant

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7
Q

name 3 types of air pollutants

A

particulate material, nitrogen oxides, sulfur oxides, carbon oxides, lead, ozone

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8
Q

what is a particulate material

A

thousands of different solid or liquid particles suspended in air

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9
Q

what are nitrogen oxides?

A

nitrogen + oxygen at high temperatures (greenhouse gases) - causes airway restriction

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10
Q

what are sulfur oxides?

A

sulfur + oxygen - can impair ability of lungs to exchange gases

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11
Q

what are carbon oxides?

A

carbon monoxide (can cause headaches and even death) + carbon dioxide

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12
Q

does lead contribute to the global environmental risk?

A

yes, 11%

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13
Q

what are the 2 types of ozone

A

tropospheric (man made) and stratospheric (screens UV radiation in upper atmosphere - can cause burning eyes, chest discomfort and coughing

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14
Q

what is photochemical smog?

A

brownish-orange haze formed by chemical reactions involving sunlight, nitrogen oxide and hydrocarbons

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15
Q

what is the main source of outdoor air pollution?

A

transport (57%)

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16
Q

what are emissions?

A

amount of pollutant a source puts into the air

17
Q

how can we control air pollution?

A

smokestacks( cloud maker)

18
Q

what caused the hole in the ozone layer?

A

bromine and chlorine containing chemicals (eg: chlorofluorocarbons)

19
Q

what causes acid deposition? (ie: acid rain)

A

sulfur dioxide and nitrogen dioxide react with water vapor in atmosphere which forms acid that returns to the earths surface

20
Q

what are some effects of acid deposition?

A

declining aquatic animal populations, thin shelled eggs prevent bird reproduction, forest declination, damage to property