Global contamination of
the environment and its consequences
prepared by
Amaldykova Adina 2C-03
Checked by
G.S.Bekenova
Almaty 2015
Plan• Introduction
• Investigate types of pollution
• Consider major problems of
environmental pollution
• Find solutions of global contamination
• Conclusion
ENVIRONMENTAL POLLUTION
Environmental Pollution can be defined as any undesirable change in physical, chemical, or biological characteristics of any component of the environment i.e. air, water, soil which can cause harmful effects on various forms of life or property.
Pollution: The term pollution can be defined as influence of any substance causing nuisance, harmful effects, and uneasiness to the organisms
Pollutant:- Any substance causing Nuisance or harmful effects or uneasiness to the organisms, then that particular substance may be called as the pollutant.
Air pollutant impacts• Greenhouse effect
• Ozone depletion
• acidification
• smog formation
• eutrophication
• human health
• ecosystem health
CAUSES OF AIR POLLUTION
Carbon dioxide-this happens because of Deforestation and fossil fuel burning.
Sulfur dioxide –Due to the burning of sulfur containing compounds of fossil fuels.
Sulfur oxides- very dangerous to humans at a high concentration. Sulfur in the atmosphere is responsible for acid rain.
Pollution causes not only
physical disabilities
but also psychological and
behavioral disorders in people.
Economic effects
EPA places limits on the number of grams/mile of
hydrocarbons, nitrogen dioxide and
carbon monoxide emitted per automobile.
The automobile industry satisfies these standards
by equipping cars with catalytic converters.
In turn, this device raises the cost of cars.
Disadvantages:
- Allow emission of less than the standard free of charge;
- Firms are restricted in the method of compliance;
- Does not take into account differences among firms;
- Does not take into account differences among regions.
How to Avoid Air Pollution
• Use natural Gases, like LPG
(Liquefied Petroleum Gas) autos.
• Do not Burst Crackers.
• Use less Amount of Fuel for
Vehicles.
• Avoid using and use electric
stoves (bio gas).
• Water pollution affects the entire
biosphere – plants and organisms
living in these bodies of water. In
almost all cases the effect is
damaging not only to
individual speciess and population,
but also to the natural biological
communities.
How to Avoid Water
Pollution
• Rivers should not be used for washing
clothes or bathing animals in
• Harvesting of Rainwaterto meet water
requirements.
• Dams & embankments must be created.
• The rivers must not be contaminated.
• In rivers the dead bodies shouldn’t
thrown
Conclusion
• Everything on our planet
is interconnected, and while the nature
supplies us with valuable
environmental services without which
we cannot exist, we all depend on each
other’s actions and the way we treat
natural resources.
Additional Resources
• Air pollution
– US EPA
• http://www.epa.gov/oar/oaqps/
• http://www.epa.gov/air/
• http://en.wikepedia.org/wiki/AirPollution
• Water pollution
– US EPA
• http://www.epa.gov/water/