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  • Publicado : 20 de maio de 2012
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Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or cause damage to the naturalenvironment or built environment, into the atmosphere.
CAUSES :
Indrustries
Automobiles and domestic fuels
High proportion of undersirable gases, such as sulphur dioxide and carbono monoxide
The numberone way to prevent air pollution is to walk or bike more and drive less. This will prevent fossil fuels from polluting the air. Here are some other ways to prevent air pollution:

-Don’t smoke-Don’t buy products that come in aerosol spray cans
-Always replace your car’s air filter
-Don’t use harsh chemical cleaners that can emit fumes
-Inspect your gas appliances and heaters regularlyWater pollution is the contamination of water bodies ( lakes, rivers, oceans, aquifers and groundwater). Water pollution occurs whenpollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds

CAUSES : Factories

Waste treatment facilities
Mining
Pesticides,herbicides and fertilizers
Human sewage
Oil spills


The best way to prevent water pollution is to not throw trash and other harmful chemicals into our water supplies. Here are a few more ways you canprevent water pollution:

-Don’t throw trash, chemicals or solvents into sewer drains
-Avoid using pesticides and fertilizers that can run off into water systems
-Clean up oil and other liquidspills with kitty litter and sweet them up
-Don’t wash paint brushes in the sink













Noise pollution is excessive, displeasing human, animal, or machine-created environmentalnoise that disrupts the activity or balance of human or animal life.
CAUSES :
- Trafic Noise
- Air craft noise
- Noise from construction and civil engineering works
- Noise from the Industries...
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