Especially in protected bays, winds and currents can cause an accumulation of soiling and pollution, mainly on the water surface (e.g. oil and petrol).
The floating pool is equipped with an impermeable barrier, reaching 30 cm below watersurface. This construction keeps pollution out and guarantees clean swimming water inside.
Floating Pool sectional cut - click to enlarge
Summer 2008 at the Côte d’Azur…
Beaches from Marseille to Monaco have been plagued this summer by millions of the gelatinous invaders, whose burning stings have sent scores of holiday-makers fleeing the surf with yelps of pain since large numbers of jellyfish were first sighted along France’s coast in June. And those menacing the shorelines are simply the outriders of giant shoals that marine biologists have identified hovering between Corsica and France’s southern shores. Sections of that invertebrate mother ship are blown to land by unpredictable shifting winds that can turn coastal water into jellyfish marshes overnight — and then leave the same area virtually stinger-free the following day. A large part of the current jellyfish scare is that swimmers rarely know whether the water into which they’re wading is benign Mediterranean surf or a dense minefield of tentacles.
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Jellyfish - click to enlarge
Bad news: The jellyfish population will grow
The bad news, according to experts, is that there’s more of that gummy pain on the way. Overfishing and other destructive human activity have prompted the prolific multiplication of jellyfish by decimating their natural predators: tuna, sharks and turtles. That, and the fact that global warming has raised the water temperature of the Mediterranean by a degree, have produced an explosion of the jellyfish population and a prolonged presence of the creatures in waters where humans like to flounder. Traditionally, scientists say, jellyfish turn up along France’s coastline every 10 to 12 years, for a period of four to five years. This is the eighth consecutive year that ever larger populations of jellyfish have camped out off the south of France — a trend experts say is unlikely to reverse itself since it reflects a domination of jellyfish over rivals in the food chain. Similar evolution has been noted in recent years off Spain, Italy and Greece.
Stung by a jellyfish
When stung by a jellyfish, first aid may be needed immediately. Stings by nonfatal jellyfish are known to be extremely painful. In worst case, serious stings may cause anaphylaxis and may result in death.
Hence, people stung by jellyfish must get out of the water to avoid drowning. In serious cases, advanced professional care must be sought. This care may include administration of an antivenin and other supportive care such as required to treat the symptoms of anaphylactic shock.