Pomorskie: Due to shinic water not suitable for bathing on two seaside bathing sites

He reported about the state of the water in the bathing baths on his website the Chief Sanitary Inspectorate.

From sini, the water is contaminated at the swimming pool in Helu No. 3 – "Little Beach" and in the town of Przetkła (Gmina Ustka). A similar situation occurs in Kashubian lake Dobrogoszcz, in Kościerzyna municipality.

The health department recalls that in the event of a blue flower, an absolute ban on entering water is recommended. Bathing in contaminated water can cause adverse reactions: from skin rash to conjunctival redness. Gastrointestinal disorders, including diarrhoea, vomiting and abdominal pain, may occur if such water is swallowed.

Silica (cyanobacteria) belong to bacteria and are counted among the oldest organisms found on the ground. They occur in both salt and inland waters, floating freely in water.

During the windless weather some cyanosis they can float to the surface of the water and create hoeies there. They look like spilled paint, jelly, or flakes floating on the surface of water.

The health department notes that it is not to confuse cynics with macroglones that can float at the surface of the water in the lake's or Baltic shore zone. Often the waves throw away these green mats on the shore of the beaches, which, although they do not look aesthetically and as a result of decomposition by bacteria, can emit unpleasant odors, they themselves are not harmful and are not a source of toxins.

As the health department emphasizes, the seasonality of mass cyanobacteria blooms is a natural phenomenon occurring in nature.

Factors that affect the appearance of blue water blooms are, among others, water temperature above 16-20 degrees Celsius (although cynic blooms and lower temperatures are known), the presence of biogenic salts (especially phosphates), weak wind and no rainfall.

According to the health department, predicting the occurrence of water blooms is very difficult, since changing weather conditions such as sun exposure are important here, wind Or rain. That's why you can't tell in advance when cyanosis will appear, and how long will they stay in a given water reservoir.

Usually in places shielded from the wind, coves, where there is less wave and mixed waters, cyanosis can last much longer than in the open.

Off the coast of the Gulf of Gdańsk, a mass blue flower can be noted only on parts of beaches, and this is related to the direction and strength of wind, which can move the surface flower even in a few hours.

Written by Robert Pietrzak/PAP