NASA discovered the giant

NASA recently discovered a cyanobacteria swirling at sea and the Polish authorities had to order the closure of the sea to avoid harm to humans.

Summer is said to be a flourishing season, growing vigorously of a variety of planktonic algae in the North Atlantic, Arctic Ocean.

But recently, NASA has released an image of a giant algae swirl in the Baltic Sea . This has led experts to worry that the blooms of these planktonic algae are extremely intense - spanning hundreds and thousands of kilometers.

Specifically, on July 18, 2018, the OLI (Operational Land Imager) terrestrial image acquisition unit received NASA's Landsat 8 satellite image of a giant whirlpool in the Baltic Sea.

Image of seaweed blooms in a large area on the Baltic Sea.

It is known that this whirlpool spans at least 24km. And the algae mentioned here are.

On Earth, cyanobacteria appeared more than 2.8 billion years ago and exist everywhere: in the ocean, in fresh water, in rocks, desert, even in permafrost in two places. our pole.

It is known that this algae plays an important role in ecology when they are able to photosynthesize and produce oxygen, and multiply rapidly.

Seaweed spreads over a large area - about 70,000 square kilometers at sea.

Even many theories suggest that the current source of oxygen on Earth originates from this organism.

However, according to experts, this type of cyanobacteria also produces a toxin , which affects animals, ecosystems and humans.

Specifically, these toxins cause many species to die, at high concentrations they can affect the liver or central nervous system.

Under the microscope.

According to Dailymail, a small study also points out the relationship of this bacterium to cancer when toxins act as carcinogens and pose a risk of premature death.

More frightening, this algae grows in areas of waste water such as sewage, industrial waste . that people discharge into the sea.

According to researchers from the University of Turku (Finland), "death zone" that marine algae is born covers an area of ​​up to 70,000 square kilometers (27,000 square miles).

Polish authorities have ordered the closure of beaches along the Baltic Sea because of concerns that toxins that marine algae could affect human health.

Scientists are worried that the toxins that marine algae produce may affect human health.

Medical Inspector - Tomasz Augustyniak: "Swimming is prohibited on 8 beaches and about 20 seas in Gdansk due to the emergence of . cyanobacteria. They contain toxins and are at risk of affecting health. healthy people ".

Besides, experts also said that cyanobacteria also caused the amount of oxygen in the sea water to drop suddenly and now, the amount of oxygen this month in the Baltic Sea has dropped to the lowest in 1,500 years.

This will cause the Baltic Sea ecosystem to be affected, even causing widespread mass deaths for living species.

The study was published in the European Geosciences Union Science Journal.