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Radioactivity of mineral water

02.11.2004

Chemists from the University of Veszprem (Hungary) measured the radioactivity of some brands of Hungarian mineral waters.

It turned out that three of the 18 varieties of mineral waters sold in stores contained fairly high concentrations of radium-226. Regular consumption of this water can exceed the safety limit recommended by the World Health Organization. A person who drinks at least a liter of such water per day can receive a dose of one hundred microsieverts per year.

The initiator of the study, Tibor Kovacs, says that radioactive water is especially dangerous for children aged 12-17, since at this time their bones are actively growing, which radium harms.

Previous studies have shown that some mineral waters from Austria, Germany, France and Portugal also contain high levels of naturally occurring radionuclides.

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Antarctica is being seeded 28.09.2012

Inhospitable Antarctica in recent years has attracted not only winter explorers, but also tourists arriving on cruise ships. Botanists from the Republic of South Africa (Stellenbosch University) vacuumed the clothes, shoes and luggage of 33 tourists and 7100 professional polar explorers who visited Antarctica in 2007 and 2008.

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