Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
Transcript of Pollution Presentation
Pollution - A change to the environment that has a negative effect on living things. Pollution Land Pollution Mrs. Rush
Bendle Middle School
6th Grade Science There are many ways to
fix the problem of pollution, but first you need to know the effects and what pollution is all about. 125 million people around the world are at risk. 14 billion pounds of garbage is dumped
into the ocean every year. The three major types of pollution
are air, water, and land. Air Pollution The definition of air pollution is when unwanted chemicals, gasses, and particles enter the air and the atmosphere causing harm to animals and damaging the natural cycles of the Earth. NATURAL SOURCES OF AIR POLLUTION:
Air pollution can come from nature: eruptions of volcanoes, dust storms, and forest fires. Air pollution can also make people sick by causing eye and throat irritation & breathing problems. http://images.nationalgeographic.com/wpf/media-live/photos/000/001/cache/green-house-factor_177_600x450.jpg CAUSES OF WATER POLLUTION:
1. Household sewage - water and human wastes that are washed down sinks, toilets, and showers. If not treated, organisms in the sewage can make people ill.
2. Agricultural Wastes - Pesticides (kill crop-destroying organisms) and Fertilizers can runoff into bodies of water
3. Industry and Mining Wastes
4. Sediments - can cover up food, nests, and eggs in water and block sunlight
5. Heat - factories and power plants release heat which can kill organisms
6. Oil and Gasoline KEEPING WATER CLEAN:
1. Sewage Treatment - wastewater is filtered, bacteria break down the wastes, and chlorine kills the disease-causing organisms
2. Reducing Pollutants - farmers reduce using chemicals on their crops, factories can produce less waste by recycling
3. Cleaning up Oil and Gasoline Spills - groundwater can be pumped up to the surface, treated, and returned underground MAP OF WATER POLLUTION AROUND THE WORLD
sINCE 1960 Land Pollution is anything
that damages or contaminates
the land. Causes include garbage, mining, farming, and factories. Land pollution destroys animals and their habitats, and destroys the beauty of nature. Land pollution includes landfills.
Around 40% of the lead in landfills
is due to improper disposal of computers
and other electronic equipment. Humans depend on trees for many things including life, so when companies cut down trees
they are damaging people's abilities to breathe. What can you do? Some Solutions to Pollution include:
reduce, reuse, and recycle
recycling paper uses less energy by 60%
build your own solar panels to save electricity
use renewable, solar, and wind energy
build more energy efficient cars
use energy (light, water, boiler, kettle, and fire woods) wisely
use reusable containers instead of plastic sandwich bags or paper lunches Solutions continued...
turning off lights
do not leave the TV or computer on
use less energy like gasoline and electricity
drive less, instead carpool
buy biodegradable food (biodegradable is trash that is made of organic substances that will eventually decay and become a part of the environment) Solutions continued...
purchase printing paper and paper towels with high recycled content
use natural and organic products to reduce pesticides
personal litter should be disposed properly
store all liquid chemicals and waste in spill-proof containers
don't dump motor oil on the ground
buy products that have little packaging Examples Air Pollution The smoke and smudge over Los Angeles can be seem by astronauts from space. Water Pollution The largest example of water pollution isn’t in the form of unsafe drinking water. It’s in the form of waste. The Great Pacific Garbage patch is the largest waste area in the world and it’s not even on land. It’s located in the middle of the Northern Pacific ocean. Waste that is thrown or dropped in is carried out on currents. These currents collected tons of trash and meet in the center between the West US. Coast and Asia. It has become overwhelmingly huge now and can no longer be contained. http://www.cookiesound.com/wp-content/uploads/2011/11/garbage-in-ocean.jpg Land Pollution The Fresh Kills Landfill was a landfill covering 2,200 acres in the New York City borough of Staten Island in the United States. The name comes from the landfill's location along the banks of the Fresh Kills estuary in western Staten Island. http://www.euinfrastructure.com/media/media-news/news-thumb/100211/Freshkills.jpg Picture of Photochemical Smog
Above the City of Los Angeles Carbon monoxide is a colorless, odorless gas that forms when oil or gas is incompletely burned. This can build up in the home and be deadly. Picture of Carbon Monoxide
Detector - BUY ONE! Solutions to Air Pollution:
1. Factories can place "scrubbers" on smoke stacks to remove pollution
2. Use of catalytic converter to reduce emissions from cars Radon is colorless and odorless radioactive gas found in the rocks underground. This gas can cause lung cancer over many years, Outdoor Causes:
1. Burning Fossil Fuels - ozone released from cars reacts with the sun to create Photochemical Smog (brown)
2. Emissions from Factories - gases from factories mix with the water in the air to create Acid Rain (nitric and sulfuric acid)
3. Temperature Inversion - warm layer of air traps pollution close to the Earth's surface Some Indoor Causes:
2. Cleaning Supplies
3. Cigarette Smoke
4. Air fresheners