Marine Pollution Essay

1544 Words Jan 23rd, 2011 7 Pages
 (Source: Marine Ecosystem: EMCBTAP-ENVIS N Marine Pollution: Causes and Consequences Pollution of the world's oceans is quickly becoming a major problem on Earth. We know very little about the effect that pollution has on the oceans, but we continue to dispose off chemicals, sewage and garbage into it at an unprecedented rate. Most people likely do not even know what types of pollutants reach the oceans. There may be billions of people unconcerned about ocean pollution and hence this problem. Truly, the fish catch from the sea will tend to bio concentrate the pollutants to finally reach the humans. Toxic Ocean Pollutants Toxic pollutants in the ocean ecosystem have massive impacts on the plants and animals. Heavy …show more content…
Other problems associated with sewage include parasites/bacteria that force closure of public coastal beaches and poisoning of shellfish fisheries. For the most part, cities in the developed world have sewage treatment facilities but many of the cities in poorer areas have little to no sewage treatment. As the world population continues to increase, sewage pollution will be on the rise. What we often do not realize is that the waste water out of washing our clothes, faces, dishes and cattle, is ultimately headed to the sea. This includes everything from our homes (toilets, washing machines, bathtubs, dishwashers and so forth), industrial effluents and even chemicals such as paints and fertilizers that we dispose of down the drains. Eventually, all of this sewage pollution adds up and we land in serious problems due to lack of oxygen for organisms and poisoned water. Non-Point Pollutants The last major source of ocean pollutant is non-point. Non-point pollution can come from amazingly varying sources, viz., runoff from farmland (fertilizers, manure), industrial runoff (heavy metals, phosphorous), urban runoff (oils, salts, various chemicals) and atmospheric fallout of airborne pollution. Obviously, it is the hardest to control. Point pollution, in contrast, is pollution from a direct source like a factory outfall pipe. The enrichment of water by nutrients, especially compounds of nitrogen and

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