Marine Pollution Essay

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Marine Pollution

The key to reducing and eventually eliminating marine pollution is for everyone to be aware of the detrimental types of marine pollution, which are nutrient loading and sedimentation, sewage and human non degradable waste, and petroleum
Nutrient loading and sedimentation are two types of marine pollution that are quite similar. Nutrient loading is caused by the runoff of agricultural land and urban areas. The runoff from the agricultural lands are fertilizers, pesticides, and other chemicals used in crop production. The urban runoff is made up primarily of lawn fertilizers. “Studies released in 2013 indicated that approximately half the fertilizers and pesticides used in the United States end up in waterways and coastal marine …show more content…

There are many causes to petroleum in b the oceanic environment. Oil naturally seeps into the ocean but the natural concentrations have been greatly exceeded. Shipping oil from one place to another contributes the most to oil in the ocean. The crude oil from transportation b is discarded into the ocean while cleaning bilges, which are the lowest compartment in ships, and transferring oil from tank to tank at sea. “Disasters like shipwrecks, oil tanker accidents, and offshore oil rigs fires continue to this problem, as does the disposal of urban garbage into oceans, dumping of waste oil by passing ships, commercial coastal and off-shore entertainment, and deep-sea industrial and nuclear waste dumps”(“Marine Water Quality”). Another large polluter is the oil industry. Tanker ports and refineries are located by the coast for shipping purposes. The coastal areas receive considerable damage from the spills. “Large numbers of seabirds are killed annually, their oil-matted plumage making flight impossible and exposing them to hypothermia. Oil-soaked fur of marine mammals loses its water repellency, also leading to death by hypothermia. Ingestion of oil by fishes, birds, and mammals may also result in death”(“Marine Pollution”). Another source of petroleum pollution is from the city streets. Oil runoff from urban streets and sewers enter waterways and the ocean. Oil has a very long term ecological impact on the ocean and the marine ecosystems. “The presence of oil in marine waters severely degrades water quality by clogging an animal’s feeding - structure, killing larvae, and blocking available sunlight for photosynthesis”(“Marine Water Quality”). Petroleum pollution has been a large problem for a very long period of time. “As early as 197p, oceanographic ecologists noted that they could rarely pull a net through the surface of the ocean without collecting some form of tar or

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