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Published byGervais Barrett Modified over 9 years ago
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Types of pollution caused by the Japan’s Tsunami: › Water pollution Soil Contaminants and physical contaminants; Oil spills; › Nuclear pollution
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A worldwide contamination (developed countries) of the ocean water are due to land runoff, bringing contaminants into the water, such as chemical fertilizers, detergents, sewage, herbicides, etc.
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› Nitrogen-rich fertilizers increase algae when flowed into the ocean. This latter robs the oxygen from the water causing no marine life possible. › Everything comes back into the food chain, where we end up consuming ourselves.
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Other common pollutants would be solid wastes such as plastic bags, and other solid items dumped in to the oceans where aquatic animals mistake them as food.
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Oil spills (in this case) is due to immersion and damages of cars and boats. › Possible of light oil and heavy oil spills: Light oil: highly flammable, highly toxic, evaporates quickly Heavy oil: less toxic, but high life span over water. Hardens on shore coasts, can suffocate aquatic life in water
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This video showing the water washing everything away, but also how people were trying to reach to higher grounds http://www.youtube.com/user/RussiaTod ay#p/u/60/vC0OFT8WWHk http://www.youtube.com/user/RussiaTod ay#p/u/60/vC0OFT8WWHk
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Iodine 129 and Iodine 131 › Thyroid constantly absorbs iodine › Cannot tell apart from radioactive and nonradiactive iodine Prevention: › Raise concentration of stable iodine in blood › Iodized table salt is useful to maintain health, but strong but NOT anti-radiation! › Excess or too little is not good for health: Thyroid disease
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Cesium 137 › Increase risk of cancer › Higher concentration in muscles than in bone and fat › Decay time: 30.17 years Prevention: › Cesium in environment cannot be avoided › Remains short time in body and eliminated through urine.
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Contamination of the air: › Forced up to higher atmosphere, particles would be carried around by the jet stream Contamination of the ecosystems: › Iodine -131 (through milk, accumulated in thyroid) Farm in Hitachi, 27 times higher than acceptable Dairy farm in Iitate, 18 times higher than acceptable
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› Cesium 137 (damage cells, increase risk of cancer) 4 times higher than normal Human contamination: › Over exposure to radioactive environment › Human body a walking contamination
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› http://www.greenlivingtips.com/blogs/164/Ef fects-of-oil-spills.html http://www.greenlivingtips.com/blogs/164/Ef fects-of-oil-spills.html › http://www.ehow.com/about_5434352_oil- spills-affect-ocean.html http://www.ehow.com/about_5434352_oil- spills-affect-ocean.html
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› http://www.ehow.com/facts_5933006_do- oil-spills-affect-animals_.html http://www.ehow.com/facts_5933006_do- oil-spills-affect-animals_.html › Soil pollutants: http://ocean.nationalgeographic.com/oce an/critical-issues-marine-pollution/ http://ocean.nationalgeographic.com/oce an/critical-issues-marine-pollution/ › Nuclear contamination: http://www.nytimes.com/2011/03/21/world/ asia/21japan.html?_r=1&pagewanted=2 http://www.nytimes.com/2011/03/21/world/ asia/21japan.html?_r=1&pagewanted=2
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