air pollution 2015 (current issue)
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7/24/2019 Air Pollution 2015 (Current Issue)
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Air PollutionAir Pollution
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Air pollution is theAir pollution is theaddition of gases,addition of gases,
chemicals, and particlechemicals, and particle
matter into thematter into the
atmosphere. Airatmosphere. Airpollutionpollution primarilyprimarily
comes from burningcomes from burning
fossil fuelsfossil fuelssuch assuch as
natural gas, petroleum,natural gas, petroleum,
and coal. A study hasand coal. A study haslisted air pollution aslisted air pollution as
thethe cause of fourcause of four
percent of thepercent of the
deathsdeathsin the Unitedin the UnitedStates.States.
AirAir
PollutionPollution
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AirAir
PollutionPollution
Humans are the mainHumans are the maincause of aircause of air
pollution.pollution.Industry,Industry,
including factories andincluding factories and
power plants, burnpower plants, burn
large quantities of fuel.large quantities of fuel.
Burning coal andBurning coal and
petroleum releasespetroleum releases
sulfur oxides andsulfur oxides and
nitrogen oxide into thenitrogen oxide into theair. Airplanes, boats,air. Airplanes, boats,
and cars burnand cars burn
petroleum, releasingpetroleum, releasing
carbon monoxide andcarbon monoxide and
carbon dioxide.carbon dioxide.
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AirAir
PollutionPollution
he waste in land!llshe waste in land!llsreleases methane.releases methane.Sulfur oxides, carbonSulfur oxides, carbonmonoxide and carbonmonoxide and carbondioxide, and methanedioxide, and methaneall ha"e a "eryall ha"e a "erynegati"e e#ect on airnegati"e e#ect on airquality. hesequality. hese
pollutants can alsopollutants can alsocontribute to thecontribute to thegreenhouse e#ect.greenhouse e#ect.
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Some air pollution is not directly caused byhumans$ for example, animals emit carbondioxide when they breathe, and "olcanoes
release sulfur oxide. %owe"er, most airpollution is lin&ed directly or indirectly tohuman acti"ity. his means that air pollutioncan be best controlled by modifying humanacti"ity to burn a smaller quantity of fossil
AirAir
PollutionPollution
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'hat(s in smog'hat(s in smog
particulatesparticulates
)especially lead*)especially lead*
nitrous oxidesnitrous oxides potassiumpotassium
+arbon monoxide+arbon monoxide
ther toxicther toxicchemicalschemicals
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Sources of Indoor pollutionSources of Indoor pollution
BacteriaBacteria
-iruses-iruses
plantsplants house dusthouse dust itesites
+oc&roaches+oc&roaches pollenpollen
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/#ects on the en"ironment/#ects on the en"ironment
Acid rainAcid rain
0one depletion0one depletion
1lobal warming1lobal warming In humanIn human
population2population2
respiratoryrespiratory
problems, allergies,problems, allergies,
and a ris& forand a ris& for
cancercancer
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op 34 +ountries that /mit the ostop 34 +ountries that /mit the ost
PollutionPollution
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