DUMPING RAW SEWAGE AND ITS RELATION TO OXYGEN/THERMAL POLLUTION

• Getting rid of untreated wastewater by dumping it into waterways, therefore contaminating the water

• Harms the environment

DUMPING RAW SEWAGE

• Wastewater– Contaminated water from residences, industries and commercial properties

• Sewage– Contaminated with human waste

– Disposed of using sewers and pipes

– Raw sewage is untreated

RAW SEWAGE

• Dumping raw sewage in rivers and other bodies of water contaminates the water and contains fecal matter, bacteria, viruses, parasites and toxic chemicals

• Sewage contaminates shellfish beds, drinking water supplies and aquatic wildlife and leads too the rapid growth of algae

HARMFUL EFFECTS

• Sewage takes away the oxygen found in water so fish and shellfish die– Oxygen is used by bacteria decomposing the sewage

HARMFUL EFFECTS

• Releasing heated water into a body of water resulting in the temperature of the water increasing– Puts aquatic life in peril, organisms are not adapted to the warmer temperatures

THERMAL POLLUTION

• Change in temperature in water can cause a decrease in oxygen levels

• Higher water temperatures can cause a boom in the algae population, which can also decrease oxygen levels for other aquatic life

THERMAL POLLUTION