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Presentation on theme: "WHAT Causes WATER POLLUTION?"— Presentation transcript:


Oil Pollution: the oceans are polluted by oil on a daily basis from oil spills, routine shipping and run-offs. Sewage and Wastewater: is the wastewater that often contains faeces, urine and laundry waste.

3 Underground Storage Leakages:: A piping network is known as an underground storage tank. They often store substances such as petroleum. Over time the steel corrodes and causes leakages, affecting surrounding soil and groundwater. Radioactive Waste: is produced from industrial, medical and scientific processes that use radioactive material.

4 Eutrophication: is when the environment becomes enriched with nutrients. This can be a problem in marine habitats such as lakes as it can cause algal blooms. Global Warming: an increase in water temperature can result in the death of many aquatic organisms and disrupt many marine habitats.

Denitrification: is an ecological approach that can be used to prevent the leaching of nitrates in soil, this in turn stops any ground water from being contaminated with nutrients. Industrial treatment: in a water treatment plant, the sewage goes through a number of chambers and chemical processes to reduce the amount and toxicity of the waste.

6 Septic Tanks: Septic tanks treat sewage at the place where it is located, rather than transporting the waste through a treatment plant or sewage system. Ozone Wastewater Treatment: an ozone generator is used to break down pollutants in the water source.

7 What are the dangers of water pollution?
- Heavy metals from industrial processes can slow the development; result in birth defects and some are carcinogenic. - The microbial pollutants from sewage often result in infectious diseases that infect terrestrial life through drinking water. - Organic matter and nutrients causes an increase in algae and depletes the oxygen from the water. - The sulfate particles from acid rain can cause harm the health of marine life in the rivers and lakes it contaminates, and can result in mortality.

8 How to prevent water pollution
- Conserve water by turning off the tap when running water is not necessary. - Don’t throw paints, oils or other forms of litter down the toilet. - Take great care not to overuse pesticides and fertilisers. - Don’t throw litter into rivers, lakes or oceans.


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