In recent years, oil tanker leaks, oil tankers leak at sea, why is there a lot of harm?

The Prestige oil spill.

On 13 November 2002, the tanker "Prestige" was on its way with 10,000 tons of heavy fuel oil when it encountered a storm while passing through the waters off Galicia, Spain, and one of the 12 fuel tanks on board burst. The captain was worried that the ship would sink and asked for help from the Spanish rescue agency, but the local ** pressured the captain to order the ship to sail off the coast; The captain then tried to turn to France and Portugal** for help, but they were equally reluctant to let the tanker dock off his shore. As the storm intensified, the tanker was eventually split in half, and about 20 million gallons of oil were dumped oversea.

Loss: $12 billion.

Palper. Alpha Oil rig accident.

It was once the world's largest single oil producing rig, with a capacity of 317,000 barrels per day. On July 6, 1988, during a routine maintenance trip, technicians removed and inspected all the safety valves, and a total of 100 identical safety valves were inspected, but unfortunately the technicians forgot to replace one of them. At 10 p.m. that night, a technician pressed a button to start the LNG pump, and one of the deadliest oil rig accidents erupted.

Within two hours, 300 work platforms were engulfed in flames and eventually collapsed, killing 167 workers.

Losses: $3.4 billion.

Exxon. Valdez oil spill.

Compared to other spills, Exxon. The scope of the Valdez oil spill was not the largest, but it was due to the place where the incident took place, William. Prince Sound Island is located in a remote area, and only *** and small boats can enter and exit, and the clean-up cost is very high.

At that time on March 24, 1989, the captain of the tanker Joseph. Hizelwood loses control of the ship and crashes into the reef.

Loss: $2.5 billion.

Search: Oil tanker leaks in recent years.

Oil is organic matter that, if spilled at sea, can cause the death of large areas of fish in the ocean. When fish die, seawater accumulates, and many toxic chemicals are released when they hatch. When released into the atmosphere, it destroys the components of the ozone layer.

It will pollute water resources, damage water quality, lead to the death of marine organisms, and cause ecological pollution. Oil spills can cause changes in the quality of the sea, making it impossible for fish to survive, and drinking contaminated water can kill fish. The death of fish leads to the destruction of ecosystems and causes ecological pollution.

Because once the oil leaks, it will cause a very large pollution of the water source, and once the water source is polluted, all the living things that live here will be polluted, and then humans will get sick if they eat these contaminated fish.

The danger of a ship's fuel leakage in the sea is very great.

First of all, it poses a great threat to the living conditions of marine life. This is because oil is an organic matter that is difficult to decompose in a short period of time, and because the density of oil is less than that of seawater, oil spills will float on the surface of the sea when they are spilled, which will cause different hazards to different marine organisms.

For fish, contamination with oil can cause the gills on which they breathe to stick together, causing them to suffocate to death, or exposing them to the erosion of oil, which eventually leads to death. In addition, oil poses a great threat to the development and growth of fish eggs.

In the case of plankton such as algae, toxic compounds in the oil can kill them by acute poisoning. Plankton such as dead algae will float on the surface of the water or float in the water, which will make it more difficult for the oxygen in the air to bind to the seawater, which may lead to a lack of oxygen in the seawater, so that many marine organisms die of hypoxia. Plankton floating in the sea can also be poisoned to death if they are accidentally eaten by marine organisms.

For the raw birds that dive for fishing, the oil spill is nothing short of a catastrophe. When these birds go diving and fishing, their bodies will come into contact with oil, when the feathers are soaked in oil, it will cause them to lose their waterproof ability, which will make them very bulky, then the birds can not hunt and use their beaks to comb their feathers, they will swallow the oil into their stomachs, and the oil itself is toxic and corrosive, and the birds will be eroded by the oil after eating them, and eventually lead to death.

In addition, oil pollution is also very harmful to shellfish and fish farmed inshorely, and human ingestion can cause a food safety crisis.

All of the above threats to marine life will break the entire biological chain and pose a great threat to the marine biosphere.

Secondly, oil pollution can also affect the entry and exit of ships, and cleaning up oil pollution is inevitably costly.

Finally, I would like to say that marine oil pollution is extremely difficult and expensive to remove, so we should solve this problem at the source and strengthen the inspection of ships when they go to sea to reduce the risk of oil leakage at sea.

As a non-renewable resource, petroleum can be refined into various fuels, and petrochemical products are also closely related to our lives, such as the raw materials for masks, which are essential products during the epidemic. Although it is useful, once it is leaked during marine transportation, it will cause great damage to marine biodiversity and the surrounding environment.

1.Marine fish.

The first thing to bear the brunt of oil spills at sea is the fish in the sea. Deep-sea fish are less affected, the eggs around the problem area may be covered with oil and stick together, affecting reproduction, small fish and shellfish have higher requirements for the water quality of the aquaculture waters, once these industries are also seriously damaged by the leakage, which will cause a big blow to the local aquaculture industry, assuming that humans eat oil-contaminated seafood will damage their health.

Polluted seas. 2.Seabird.

Seabirds are flying on the sea surface to feed, after the oil spill because the density of oil is greater than water, so the oil will float on the sea surface in a large area, and the oil will stick to the feathers of birds when the birds are foraging, causing birds to be limited in their movements, unable to forage, and in high latitudes, due to the decline in the ability of the feathers to keep out the cold, birds may also freeze to death. Seabirds lose food due to mass fish deaths**, which also leads to a decline in local bird populations.

3.Plant. When oil spills at sea, plants near the sea and algae in the ocean will also be covered by oil, which will slow down the growth of plants and algae, or even die, which may lead to the degradation of shore vegetation, the reduction of photosynthesis of marine algae, and the lack of food for algae-feeding fish may lead to a decline in populations and reduce local biodiversity.

Pollution of beach landscapes can lead to a sharp drop in local tourism revenues, such as Mauritius, which has been polluted by Japanese oil tankers, which has been struggling due to the pandemic, and the ecological damage caused by oil spills has made Mauritius' tourism industry even worse.

After the oil spill at sea, the local government will definitely need to invest a lot of manpower and material resources to eliminate pollution. Generally, physical suction, linoleum or petroleum dispersants are used to eliminate the hazards, but at the same time, petroleum dispersants will also cause damage to the balance of marine life, and at the same time, the recovery of the environment also takes a certain amount of time, which is fatal to countries with tourism as the pillar industry.

Oil has made a great contribution to the development of human society, but at the same time, it is necessary to pay attention to safety during transportation.

Fuel leakage from ships will cause a series of serious consequences such as local damage to the marine ecological environment, affecting the human living and production environment, and traumatizing the economy. Most of today's marine pollution is mainly caused by fuel pollution, whether it is a large cargo ship or an ocean-going oil tanker, its fuel tank or oil carrier hull is not a small number of fuel oil, and there are many less safe single-hull oil tankers sailing at sea, which is still a very big safety hazard.

1.Damage to marine ecology: Due to the nature of ocean flow, the fuel leaked in the sea cannot be fixed within a certain range, which not only brings great difficulties to cleanup, but also pollutes the larger sea area.

The light oil will float on the surface of the sea, forming a thick layer, causing the sea creatures to suffocate to death, and the organisms will also be poisoned to death after ingesting a large amount of oil; The oil layer also blocks sunlight, the algae cannot photosynthesize, and the biological chain is threatened; Some birds that depend on marine fish, such as seagulls, will also die in large numbers, and ecological disasters will ensue. Ecosystems can recover on their own, but they will take decades or even fail.

2.Impact on human life: Many fuel spill accidents occur near the coast, that is, where ships can easily run aground, and the stranded hull cannot withstand itself and the weight of the cargo and breaks, resulting in fuel leakage.

If it is only a barren coast, it is better, if there is a scenic spot or a nearby aquaculture industry, it will be an immeasurable loss in terms of economy. Referring to the 2002 accident of the oil tanker "Prestige", due to the offshore, the streams on the shore were covered with black oil, and the vegetation in the inland was also painted black; The surrounding scenic area has also suffered from serious pollution, and from time to time there will be dead fish and dead birds floating on the sea, and the originally beautiful scenery has become shocking. For example, the 2020 grounding of a Japanese freighter near Mauritius caused the "worst ecological disaster" in the history of the country, and also hit the local tourism industry hard, and I am afraid that it will not be open to tourism for some time to come.

3.Losses to the economy: Salvage of fuel spills is relatively difficult, and only about 80% of the fuel (or**) is currently better handled.

The fuel tanks of large ocean-going freighters basically have thousands of tons of fuel, and the largest tankers can transport tens of thousands of tons. The general way to deal with fuel oil in the sea is to use oil-absorbing substances such as straw to put them into the seawater for containment and absorption, and the oil pollution on the shore needs people to clean up and scrub a little bit, and this process requires a lot of manpower and material resources.

In addition, local and marine-related industries will be hit or even bankrupt, which is only some direct economic losses, and those priceless environmental losses cannot be recovered no matter how much money is paid.

The impact on the sea is not good.

1. Destroying marine ecology.

Because the density of fuel oil is greater than that of seawater, under normal circumstances, the leaked fuel will cover or float on the seawater, resulting in a decrease in the oxygen content under the sea water level in the polluted area, and a certain amount of blocking sunlight, which is undoubtedly a fatal disaster for fish and marine plants, and may eventually cause regional seawater pollution and marine ecological environment deterioration.

Freighters transporting fuel.

Injured sea creatures.

2. Affect the beauty of the environment.

The color of the sea water and the marine life will be affected by the fuel leakage, the color of the sea water will become darker, and the skin of the marine life will be contaminated with fuel, which will greatly reduce the aesthetics of the environment.

An ocean that is not polluted by fuel oil.

3. Causing hidden harm to human life by the sea.

Marine animals and plants swallow or adsorb fuel oil, and eventually it is consumed by humans, and toxins enter the human body to pose a threat to humans.

Humans salvage seafood.

4. The polluted area is uncontrollable, and the pollution hazard is irreversible.

Once the fuel is leaked, the fuel floating at sea will be affected by the monsoon and ocean currents, and will spread over a large area with the movement and drifting of the seawater, causing great and irreversible damage.

Fuel leakage from ships will lead to water pollution, the death of underwater organisms, and the destruction of the ecological environment.

Contaminating water and a small oil spill can have a serious impact on the survival of marine life. The oil spill covered the surface of the sea, preventing seabirds and many marine creatures from starving to death.

Pollution, many marine organisms will die, and then in the sea can not be naturally decomposed, can only let the marine animals and plants slowly digest, for a long time marine organisms are prone to disease or mutation and death.

On the one hand, fuel oil is incompatible with water and lurks on the surface of the sea, isolating the air, causing most marine life to die of lack of oxygen.

On the other hand, fuel oil cannot be degraded and floats to the coast with the flow of seawater, polluting the environment

This will damage the ecological environment of the ocean, and a large number of marine life will be threatened.

It will cause local environmental pollution and affect the survival of local organisms.

If oil leaks at sea, it will have a great impact on marine life because of its very large amount of oil, such as polluting water sources and making it difficult for them to hunt.

If an oil ship leaks in the ocean, there will be serious pollution of the seawater, and the marine life and plants living in this area will die on a large scale. It is possible that this area is devoid of any living organisms.

There will be a certain harm to the natural environment, and it will also endanger a lot of marine life, some of which are about to become extinct, which will seriously damage the ecological environment.

2020 is destined to be an extraordinary year, with natural disasters and man-made disasters coming, and even the fairyland on earth is no longer isolated from the world. It happened some time ago in the Indian Ocean island nation of Mauritius.

A fuel spill on a ship has destroyed this paradise island, and Mauritius** has declared a "state of environmental emergency in response to this serious fuel spill." The fuel spill not only destroyed the beautiful landscape, but also caused serious damage to the local environment.

First of all, fuel has a negative impact on marine life.

Causes irreversible damage. There are a large number of harmful substances in the fuel oil, which dissolve into the seawater, which is extremely easy to affect the growth and reproduction of aquatic organisms. These contaminants alter the cellular activity of aquatic organisms, which can lead to the death of marine organisms due to acute poisoning.

When the fuel content in the ocean reaches a certain concentration, it also affects the development and growth of fish eggs and fry. And because of the strong coating ability of oil, it is extremely easy to cause the death of marine flying birds. When heavier substances in fuel oil sink to the bottom of the ocean, they seep into the plants on the seabed, altering plant cells.

physiological functions, causing a large number of deaths of plants on the seabed.

Secondly, fuel leakage can seriously affect the development of marine tourism. Although the area of the fuel leak is not large, the sea water is flowing and is subject to ocean currents.

and waves, the fuel can drift to the shores near the sea and stay on the shores, causing environmental damage to habitats such as beaches. The fuel spill in Mauritius has brought the local tourism industry to a halt.

Finally, fuel leaks can also have a serious impact on the fishing industry of fishermen at sea. Fuel leaks cover the sea, causing a lack of sunlight on the already underlit seabed, thus inhibiting the photosynthesis of plants on the seabed.

The amount of oxygen in the sea is greatly reduced, which destroys the living environment of fish in the sea and may cause a large number of fish to die. Fish that survive in time may also have a peculiar smell, abnormal development or inedible due to long-term survival in fuel seawater.

Fuel oil leakage at sea is an extremely serious environmental damage, and the technical difficulties and costs of controlling offshore fuel are very prominent. Therefore, it is necessary to prevent such sabotage from happening in the first place and create a comfortable breathing environment for underwater life.