Pomorskie: All seaside swimming pools free of cynics

Current information on bathing water status can be found in the information service of the Main Sanitary Inspectorate. According to the data provided there, currently in all coastal bathing areas organized this summer in the Pomeranian Voivodeship, water is deprived of dangerous blueberries and can be used safely. The only water in the region where water due to the flower of blue is not suitable for swimming is a swimming pool on the High-Wycztok Lake in the village of Kamien (the municipality of Szemud).

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 on the ground. They can settle in the most inhospitable ecosystems. They occur in the soil, on rocks, on the bark of trees, on glaciers, and even in hot springs, where temperatures can reach up to 90 degrees Celsius. They occur in both salt and inland waters, floating freely in water.

In the Baltic Sea, toxic flowering forms the Nodularia spumigena species, although there are also a number of typically freshwater species in coastal waters, especially in the genus Dolichospermum and Microcystis.

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 out these green mats on the shore of the beaches, which – although they do not look aesthetically and as a result of decay by bacteria can emit unpleasant odors – 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 blueish water blooms are, among others, water temperature above 16-20 degrees Celsius (although cynic blooms and lower temperatures are known), availability of biogenic salts (especially phosphates), weak wind and no rainfall.

Usually, in places shielded from wind, coves, where there is less wave and mixing of waters, the flower can last much longer than in the open space.

According to the Health Department, predicting the occurrence of water blooms is very difficult, as changing weather conditions, such as sunlight, are important, wind Or rain. Therefore, it is impossible to determine when cyanosis will appear and how long they will stay in the water.

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. Usually sudden weather collapses, strong winds, wave waves, and water mixing cause flowering to break, resulting in cells dying and falling down.

The health department also recalls that the use of bathing sites during the coronavirus pandemic and the associated risk of infection concerns essentially the spread of infection by droplet and direct contact.

Therefore, in the case of coastal bathing sites whose beaches are several kilometres long, and which are not restricted, it is necessary to seek to maintain a social distance from bystanders, to provide at least 4 square meters of space per user (does not apply to people living together).

The health department also recommends, among others, the use of its own tourist equipment and toilet equipment, such as blankets, travelling rugs, sunbeds, mats, towels, learning equipment or swimming facilities.

Written by Anna Wydorska/PAP