Pollution

SNC1D

Pollution: harmful contaminants released into the environment

Pollution: harmful contaminants released into the environment

e.g. pesticidesvehicle exhaustproduct 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 ecosystems2. damage to vegetation

Effects of Acid Precipitation:1. acidification of aquatic ecosystems2. damage to vegetation3. corrosion of buildings and vehicles

Effects of Acid Precipitation:1. acidification of aquatic ecosystems2. damage to vegetation3. corrosion of buildings and vehicles4. health problems(most related to sulfur dioxide & nitrogen

oxides breathed in

Effects of Acid Precipitation:1. acidification of aquatic ecosystems2. damage to vegetation3. corrosion of buildings and vehicles4. health problems5. 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 Patchhttp://www.youtube.com/watch?v=_pRy88R-4BI