Heavy Metals (2014-12-02)

CalvinCheung@S.W.C.
Mind Map by CalvinCheung@S.W.C., updated more than 1 year ago
CalvinCheung@S.W.C.
Created by CalvinCheung@S.W.C. over 5 years ago
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S.W.C. Science Grade 10 (Block 1-1) 12/02/2014 Notes about Heavy Metals

Resource summary

Heavy Metals (2014-12-02)
1 Mercury (Hg)
1.1 Sources
1.1.1 Volcanic Eruption
1.1.2 Burning Fossil Fuel
1.1.3 Mining
1.1.4 Manufacturing
1.1.4.1 Batteries
1.1.4.2 Electronics
1.1.5 Filling for Teeth
1.1.5.1 Amalgam (Silver/Mercury Alloy)
1.1.6 Pesticides
1.1.7 Painted on Bottom of Boats
1.1.7.1 Stop Barnacles from Growing
1.2 Effects
1.2.1 Damage Nervous System
1.2.2 Damage Heart and Kidney
1.2.3 Suppress Immune System
1.2.4 Abnormal Behaviour
1.2.5 DEATH
2 Cadmium (Cd)
2.1 Sources
2.1.1 Weathering
2.1.2 Volcanic Eruption
2.1.3 Burning Trees
2.1.4 Manufacturing
2.1.4.1 Plastic
2.1.4.2 Rechargeable Batteries
2.2 Effects
2.2.1 Humans
2.2.1.1 Damage Respiratory System
2.2.1.2 Damage Digestive System
2.2.1.3 Damage Endocrine System (Hormones)
2.2.1.4 Damage Excretory System
2.2.2 Fishes
2.2.2.1 Low Reproduction Rate
2.2.2.2 DEATH
2.2.3 Insects (Earthworms)
2.2.3.1 DEATH
3 Lead (Pb)
3.1 Sources
3.1.1 Soil
3.1.2 Industrial Uses
3.1.2.1 Auto Body and Paint
3.1.2.2 Constructions
3.1.2.3 Pesticides
3.1.2.4 Wall Paint (Houses before 1950s)
3.1.2.5 Gasolines (Houses before 1990s)
3.1.3 Old Plumbing
3.1.4 Electronics
3.1.5 Airplanes and Farming Vehicles
3.2 Effects
3.2.1 Above 0.0012 ppm is Extremely Toxic
3.2.2 Can be Eaten/Absorbed/Inhaled
3.2.3 Damage Nervous System
3.2.4 Impaired Mental Development
3.2.5 Kidney Failure
3.2.6 Cause Sterility for Males/Low Fertility for Females (Low Reproduction Rate)
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