680
Paradise Lost
It's a great-looking place near Buxton in England his whole appearance reminded the lagoon some exotic island, but ... part of this blue water was as toxic as chlorine bleach. But the people who come to dive in "beautiful" blue lake, was not discouraged.
They came here from different parts of the country, to swim on hot summer days. And huge posters with the warning labels did not stop them. But this lake, actually a flooded quarry technical, which is full of rubbish, dead animals and all sorts of waste.
The pH level he is 11, 3, and it is almost as much as from ammonia (11, 5 pH), and almost like bleach - 12, 6 pH. Therefore, to keep fans cool the skin from burns and retinal problems with the gastrointestinal tract and from fungal infections, and have been exhibited all over the warning znaki.
But many decades, these characters are simply ignored, people could not believe that such a blue water can be so dangerous. And this color gave the lake its surrounding walls of limestone, calcite crystals which gave the water, and it turned into a turquoise by a chemical reaktsii.
Local residents, seeing such a high activity of visitors, are seriously concerned about the health of their children. Who would have believed there is a risk looking like adult uncles and aunts have fun splashing in the blue lagune.
Initially, the idea was simply to protect the lake, but it soon became clear that it would not help. The authorities have adopted a radical solution - and painted in black pond. Now, its appearance is quite responsible soderzhaniyu.
Source: mirfactov.com/