Marine Contamination And Pollution Essay

1110 words - 4 pages

Marine Contamination and Pollution

According to the United Nations Joint Group of Experts on
the Scientific Aspects of Marine Pollution (GESAMP) of 1972,
marine pollution is ?the introduction by man directly or indirectly,
of substances or energy to the marine environment resulting in deleterious effects such as harm to living resources, hazards to human health; hindrance of marine activities including fishing, impairing the quality for use of sea water, and reduction of amenities?(Clark 3). Since the beginning of modern civilization, man has continuously polluted the oceans. As more and more pollution entered the Earth?s oceans and problems became evident, man has been given the obligation to prevent further damage. Sewage, marine debris, toxic chemicals, heavy metals, oil, and radioactive materials constitute six major categories of marine pollutants that mankind needs to prevent from entering the worlds oceans.
Sewage has a short lifespan, it decomposes due to microscopic organisms like bacteria and fungi. However, in the respiration process microorganisms consume oxygen, creating ?biological oxygen demand?(Johnston 56). If there is too little oxygen in the water to support the biological oxygen demand for these biodegraders, they die and so do all the plants and animals that depend on them for food. When raw sewage is dumped into an area without strong currents to disperse it, the oxygen is likely to be used up. When this happens, the only form of decomposition that can take place is anaerobic which takes a very long time. This process is called eutrophication (Clark 5). When nutrient rich sewage enters the ocean, an extreme overgrowth of toxic phytoplankton. This process causes what is known as red-tides that kill many forms of marine life.
Marine debris is another form of pollution that is a major threat to the earth?s oceans. Marine debris consists of discarded plastic, glass, and metal that does not easily decompose. Some debris such as abandoned ships and old cars that sink attract fish because they form artificial reefs. Some artificial reefs have been purposely made by humans out of sinking marine debris for the sole purpose of providing sea life with an ecosystem. The pollution problem is more centered around floating marine debris such as plastic. Because plastic floats it constitutes a threat to sea birds and mammals who either eat it or become entangled in it. Each year 30,000 northern fur seals as well as hundreds of thousands of other marine animals die due to being entangled in discarded plastic(Johnston 63). These plastics when eaten can lodge in the intestines and stomach to block the digestive tract to cause malnutrition and death. Not only does marine debris effect sea life, but humans as well. Marine debris interferes with ship navigation and litters beaches along coastal water.
Toxic chemicals are extremely hazardous to the oceans. Three of the most deadly chemicals are...

Find Another Essay On Marine Contamination and Pollution

Korean Precautions of Japanese Imports Essay

2671 words - 11 pages and whole marine products are restricted. They also noted that they will reinforce this regulation if radioactive material is detected from other items. In consequence, the consumption of agricultural and marine products is in rapid decline. The whole market suffers sales slump and price drops due to the worrying of consumers about radioactive contamination of the products. According to the Agricultural marketing industry, the average price of

What is Marine Pollution? Essay

999 words - 4 pages What is Marine Pollution? Marine pollution is the adding of toxins and harmful chemicals into the ocean, not only is it chemicals but it also plastics. North Carolina is now ranked the 3rd out of 30 states in beach water quality. Runoff from storms and irrigation carries pollution from parking lots, yards, and streets directly into waterways that lead right to the ocean. In 2010, North Carolina reported 240 coastal beaches, 114 beaches or (48

Marine and Coastal Ecosystems Degradation

1414 words - 6 pages structure and function of coastal marine ecosystems are faced with a lot of environmental and ecological challenges. The key issues of coastal marine systems sustainability are discussed below. Coastal Marine Environmental Degradation The degree of pollutions is of a greater concern when considering sustainability issues of coastal marine systems. Land-based activities such as agriculture and industries remains the major source of coastal pollution

Water resource challenge

1754 words - 7 pages pollutants all have the ability to settle into bodies of water and damage ecosystems as well as pose a risk to public health. Air pollution causes most short term measurable damage to the water quality when toxic chemicals fall from the air as dust or when rain rinses these chemicals to the ocean and water ways which lead to the ocean pollution, commonly referred to as acid rain.The contamination of freshwater limits the ability of a region to

Cause and Effect: Air and Water Contamination

857 words - 4 pages centuries! The Environmental Pollution Center’s Guide to Understanding and Recognizing Pollution Issues states, “Human activities, yet, are ubiquitous and happen every day. Therefore, their contribution to air pollution is essential.” Pollution is a growing process and as humanity contributes to the contamination of air it also contributes to the contamination of Water. The disposal of human waste is an unpleasant but true reality when it comes


1562 words - 6 pages -based sources alone. In the 1980’s, it was reckoned that 30,000 northern fur seals died each year after becoming entangled in marine debris, principally lost or abandoned fishing gear. Heavy metals--mercury and lead, for example--and organochlorine compounds such as PCBs and DDT, have been associated with a wide variety of impacts on marine wildlife(Mulvaney 29-30). A serious form of ocean pollution might be heading to the coast of New Jersey

Pollution: A Major Cause of Health Problems

1993 words - 8 pages drinking water, rivers, lakes and oceans all over the world. This consequently harms human health and the natural environment. “(Water Pollution Guide) Based on the findings on of the Salem Encyclopedia, water contamination is described as “The pollution of water supplies, which can be caused by activities such as mining, agriculture, and improper waste disposal, can have negative health impacts on plant and animal life.” There are natural and human

Mercury Pollution and Its Effects on the Ecological Environment

1191 words - 5 pages well known ocean pollution for many years, and United States remain to be one of the top nations with the most severe mercury contamination. Government needs to cease all industrial activities that cause mercury pollution by setting up regulations since mercury threatens marine ecological environment. Even though mercury is a natural occurring element, most of the mercury that enters and pollutes the aquatic ecosystem is from human industrial


959 words - 4 pages ecosystems.Indoor air pollution (see Airlog) and urban air quality are listed as two of the world's worst toxic pollution problems in the 2008 Blacksmith InstituteWorld's Worst Polluted Places report.[1]Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater). Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful


959 words - 4 pages ecosystems.Indoor air pollution (see Airlog) and urban air quality are listed as two of the world's worst toxic pollution problems in the 2008 Blacksmith InstituteWorld's Worst Polluted Places report.[1]Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater). Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful

Marine Biologist By Jelly5374

555 words - 2 pages The ocean has always been a big mystery, and holds many wonderful secrets. For many years it's been the marine biologists job to help uncover those secrets. The job of a marine biologist is ever changing as shown in the duties, education, work conditions, compensation, and market.Marine biologists have many duties. These duties are what make this job so neat. One of the most important duties is observation. One of the many things a marine

Similar Essays

Pollutions Effect On The Environment Essay

637 words - 3 pages because it happens by accident and is extremely dangerous. Oil spills cause massive and long-term damage to marine wildlife. Animals get trapped in the oil and die. For example birds ingest oil that covers their feathers and it causes serious kidney damage, altered liver function and digestive tract irritation, leading to the death of many birds. A least known form of pollution is noise pollution. Noise pollution is often neglected but is still

Global Water Pollution: Causes, Impacts, And Solutions

572 words - 2 pages cleanup this contamination as it might spend an enormous amount of time and money. Furthermore, wasting fresh water is an intractable problem that may be faced when they minimize the volume of dirty water. Therefore, the prevention is much better and cheaper than the cleanup (Miller, G. T. 2007). Everyone in society can do some helpful things to deal with the water pollution issue. Governments can control oil transfer in the sea and put more

Ocean Pollution Essay

1441 words - 6 pages two millions sea birds yearly. A way you wouldn't expect pollution to be caused is by noise. The pressure from the sounds omitted by ships, sonar devices, oil rigs, and earthquakes can disrupt communication, hunting, migration, and reproduction patterns from many marine animals like whales and dolphins. This can throw the whole system off balance. Air pollution can also cause ocean pollution by being absorbed into the water and contaminating it

Pollution In The Bahamas Essay

2113 words - 8 pages pollution, but due to the activities mention above, The Bahamas has three majors’ well-known types of pollution, which are land, water and air. The Bahamas has face land pollution due to the Bahamian littering, water pollution due to the recent oil spills, and sewage, and air pollution mainly by burning of fossil fuel and exhaust from cruise ships and cars. Land Pollution Firstly, land pollution is the contamination of the soil that prevents natural