Pollutants - DF Flashcards

1
Q

Name all of the pollutants

A

CO₂, CO, particulates, unburnt hydrocarbons, NOₓ, SO₂, O₃

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2
Q

Origin of CO₂

A

combustion of fossil fuels

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3
Q

Origin of CO

A

incomnplete combustuin of hydrocarbons in fossil fuels
burning biomass

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4
Q

Origin of particulates

A

volcanoes
burning fuels
bruning coals

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5
Q

Origin of unburnt hydrocarbons

A

hydrocarbon fuel molecules which have not been oxidised
incomplete combustion

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6
Q

Origin of NOₓ

A

combustion of fuels in power stations and vehicles

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7
Q

Origin of SO₂

A

volcanoes
burning of fuels containing sulfur

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8
Q

Origin of O₃

A

atomsphere

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9
Q

Environmental effect of CO₂

A

greenhouse effect

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10
Q

Environmental effect of CO

A

toxic gas
photochemical smog

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11
Q

Effect of particulates

A

penetrate deep into the human body causing heart attacks and lung cancer

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12
Q

Environmental effect of unburnt hydrocarbons,

A

contributes to climate change by trapping heat

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13
Q

Environmental effect of NOₓ

A

acid rain
photochemical smog

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14
Q

Environmental effect of SO₂

A

toxic gas
acid rain

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15
Q

Environmental effect of O₃

A

stops radiation

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16
Q

Alternative fuels names

A

diesel, LPG, ethanol, biodiesel, hydrogen

17
Q

How is diesel made and is it sustainable

A

distillation of crude oil = unsustainable as oil is finite and releases CO

18
Q

How is LPG made and is it sustainable

A

distillation of crude oil = unsustainable as oil is finite and releases CO

19
Q

How is ethanol made and is it sustainable

A

can be made from fermentation of carbohydrate crops = sustainable as can be grown quickly

20
Q

How is biodiesel made and is it sustainable

A

made by chemically reacting fats and oils with an alcohol = sustainable as waste oil is used not fossil fuels

21
Q

How is hydrogen made and is it sustainable

A

combustion of hydrogen produces water = sustainable

22
Q

Advantages and disadvantages of diesel

A

AD - more fuel efficient than other alternatives
DIS - produces emissions that are harmful to the environment

23
Q

Advantages and disadvantages of LPG

A

AD - releases less emmissions which has less of an environmental impact
DIS - not easily transportable (flammable and needs to be kept at high pressure)

24
Q

Advantages and disadvantages of ethanol

A

AD - carbon neutral as CO absorbed by crops mathces CO released
DIS - cars cannot run easily on ethanol alone, land usage can be used for food instead

25
Q

Advantages and disadvantages of biodiesel

A

AD - carbon neutral, some cars can run on pure biodiesel
DIS - more nitrogen oxides are produced than fossil fuels

26
Q

Advantages and disadvantages of hydrogen

A

AD - renewable, can be stored and sent down pipelines, no CO, CO or hydrocarbons released
DIS - less energy dense, oxides of nitrogen are still produced at high temperatures