Pollution SNC1D.

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Presentation transcript:

Pollution SNC1D

Pollution: harmful contaminants released into the environment

Pollution: harmful contaminants released into the environment e.g. pesticides vehicle exhaust product packaging

Acid Precipitation: precipitation that has been made more acidic than usual by the reaction of certain chemicals in the air with water vapour

Acid Precipitation: precipitation that has been made more acidic than usual by the reaction of certain chemicals in the air with water vapour

Effects of Acid Precipitation: 1. acidification of aquatic ecosystems

Effects of Acid Precipitation: 1. acidification of aquatic ecosystems neutralizing: treating with a base to counteract the acid e.g. liming a lake

Effects of Acid Precipitation: 1. acidification of aquatic ecosystems 2. damage to vegetation

Effects of Acid Precipitation: 1. acidification of aquatic ecosystems 2. damage to vegetation 3. corrosion of buildings and vehicles

Effects of Acid Precipitation: 1. acidification of aquatic ecosystems 2. damage to vegetation 3. corrosion of buildings and vehicles 4. health problems (most related to sulfur dioxide & nitrogen oxides breathed in

Effects of Acid Precipitation: 1. acidification of aquatic ecosystems 2. damage to vegetation 3. corrosion of buildings and vehicles 4. health problems 5. soil nutrient depletion

Water Pollution: Oil Spills: oil is toxic, slow to break down, and difficult to clean up

Water Pollution: Oil Spills: oil is toxic, slow to break down, and difficult to clean up (because its density is less than that of water, it forms large slicks that cover the ocean and beach)

Water Pollution: Oil Spills: oil is toxic, slow to break down, and difficult to clean up (because its density is less than that of water, it forms large slicks that cover the ocean and beach) Bioremediation: the use of micro-organisms (bacteria) to consume and break down environmental pollutants

Water Pollution: Plastics at Sea: plastics take thousands of years to break down

Water Pollution: Plastics at Sea: plastics take thousands of years to break down

Water Pollution: Plastics at Sea: plastics take thousands of years to break down Gyres: massive islands of plastic in the oceans Digging into the Great Pacific Garbage Patch http://www.youtube.com/watch?v=_pRy88R-4BI