Water Pollution:CAUSES Pictures taken from: www.indiamart.com | www.neftagaz.ru | www2.macleans.ca
Pollutants Rivers, Lakes & Seas LDCs Contamination Poisonous Detrimental Marine Life | People Locals queuing for water in Africa Picture taken from: www.design21sdn.com
Human Waste | Detergent | Chemicals Sewage Case Study: Molex - $2 Mil Investment to build Plant Households | Industries Treatment Plants Expensive Remove waste Non-biodegradable substances Remain Animals Algae growth Aquatic plants below
Illegal Dumping Avoid Costs 21 March 2013 Case Study: Schoeller Holdings Cyprus Shipping / Hotel Holding 4 Occasions [May 2012 – March 2013] Oil-tainted bilge water $10.4 million FINE Falsifying Records
Industrial Sulfur Nitrates | Phosphates TOXIC Manufacturing Process Lead | Mercury Asbestos Oils
Ocean & Marine Dumping Paper | Food Waste TIME Plastic Paper = 6 wks RUBBISH Rubber Metallic | Aluminium Waste Aluminium = 200 yrs
Atmospheric Deposition Diagram taken from: aritech.tnau.ac.in
An oil spill is another form of water pollution. • Occurs when hull is damaged or collision happens. • Difficult to clean up: 1) Non-biodegradable • 2) Spreads over large areas easily • Endangers animal and plants which may cause negative impact on human • health. • Cleaning up requires huge efforts and is very costly.
Exxon Valdez Oil Spill • One of the most devastating human-caused environmental disasters. • Approximately 55 million US gallons spilled into Prince William Sound. • Cleaning up process involved an estimated 10 000 workers and US$2.1 billion was spent.
Other examples of large oil spills include: • Gulf War Oil Spill- Persian Gulf • Deepwater Horizon- US, Gulf of Mexico • Ixtoc I Oil Spill- Mexico, Gulf of Mexico • Fergana Valley- Uzbekistan • 5) ABT Summer- Angola • 6)Castillo de Bellver- Africa • 7) Amoco Cadiz- France, Brittany
Consequence /impacts of Water Pollution • Environmental impact • Economic impact • Social impact
Endangering Plant & Animal Species • Oil Spills • Sticks to feathers • Air trapped between layers of fur/feathers removed • Birds therefore unable to fly thus drowning • Birds and animals freeze to death Impact on ecosystem as many animals/birds perish, disrupting the food chain etc.
Endangering Plant & Animal Species • Improper disposal of waste material • Detergents/Chemicals improperly disposed • Leads to growth of algae • Plants die • Animals do not have food - they die Impact on ecosystem as many animals/birds perish, disrupting the food chain etc.
Negative Impact on humans • Indirect effect on us • Chemicals are disposed of improperly (China) • Fishes that consume these plants affected • When we eat them, we may get poisoning • People may also suffer from cholera and typhoid when they drink water that is contaminated.
Economic impacts • Impacts Fishermen • Cleaning up oil spills can be extremely costly and requires huge effort • Exxon Valdez • 2.1 billion to clean up • 10000 workers
Contaminated Water Oil spills