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