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Pollution and recyclingPollution and recycling
Pollution typesPollution types
NaturalNatural: volcanic eruptions – dust, toxic : volcanic eruptions – dust, toxic gases, ash releasedgases, ash released
ManmadeManmade: waste from manufacturing, : waste from manufacturing, burning fuels, garbageburning fuels, garbage
Mt. Etna Sicily Coal power plant
Air pollutionAir pollution
CHCH4 4 + 2O+ 2O22 CO CO22+ H+ H22OO
Combustion releases Combustion releases COCO22
21 billion tons a 21 billion tons a yearyear
= 4.2 X 10= 4.2 X 1013 13 poundspounds Effect: world’s Effect: world’s
temperature is rising temperature is rising
Other air pollutantsOther air pollutants
NONOX X compounds + compounds + sunlight creates sunlight creates smogsmog
Ground-level ozone Ground-level ozone makes asthma makes asthma worseworse
Sulfur compounds Sulfur compounds make rain pH 4-5make rain pH 4-5
Smog damages Smog damages plants, cropsplants, crops
Smog masks in Kuala Lumpur, Malaysia
Water pollutionWater pollution
Causes:Causes:
1.1. Industrial wasteIndustrial waste
2.2. FertilizersFertilizers
3.3. Landfills and Landfills and sewagesewage
4.4. Industrial Industrial accidentsaccidents
Great Pacific garbage patch
fertilizersfertilizers
get into waterwaysget into waterways cause algae cause algae
bloomsblooms kills fishkills fish
PesticidesPesticides also also enter the water enter the water cycle from cycle from agricultureagriculture
Clear Lake, CA
Land Land contaminantscontaminants
Lead – from fuels Lead – from fuels before 1970before 1970
Dioxin (used in Dioxin (used in making paper) causes making paper) causes cancercancer
Each person in the US Each person in the US throws away 1000 lbs throws away 1000 lbs of garbage a yearof garbage a year
Landfills pollute Landfills pollute ground waterground water
Reducing pollutionReducing pollution
Cleaner, efficient Cleaner, efficient cars or carpooling, cars or carpooling, mass transitmass transit
Less energy use: Less energy use: turning off lights, turning off lights, electronicselectronics
Re-useable bags Re-useable bags for groceriesfor groceries
Proper disposal of Proper disposal of e-waste, toxicse-waste, toxics
Recycling: the final way to prevent Recycling: the final way to prevent pollutionpollution
Yard waste into mulchYard waste into mulch Table scraps into Table scraps into
compostcompost Plastic bottles become Plastic bottles become
clothingclothing Paper recycling could Paper recycling could
eliminate 41% of landfill eliminate 41% of landfill spacespace
Metal recycling reduces Metal recycling reduces mining, habitat mining, habitat destructiondestruction
Petaluma methane gas to electricity plant atLandfill site
Chose the world Chose the world youyou want to live in want to live in
Linfan, China San Francisco, CA