Sentences with phrase «found caesium»
Ruff, who was in Paris last week as part of a last - ditch attempt by members of International Physicians for the Prevention of Nuclear War to stop the tests, says that 60 underground tests have been carried out by the French since the 1983 scientific visit and that in 1987 scientists found caesium - 137 on Mururoa.
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Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors.
Research at the Institute of Grassland and Environmental Research in Aberystwyth has found that spreading certain minerals over contaminated land can fix caesium in the soil, preventing plants from taking it up.
Buesseler says that during his own sampling survey in waters 30 to 600 kilometres from Fukushima in June 2011, three months after the meltdown, the highest levels he found were 3 Bq of caesium - 137 per litre of seawater.
Swiss and German researchers have analysed Burgundy truffles collected in central Europe and found they contain only negligible amounts of radioactive caesium, being safe for consumption.
«Relatively definitive refutation» David Borhani, a biochemist and structural biologist in Hartsdale, New York, would have liked to see additional control experiments — to determine, for instance, the lowest possible level of arsenic that Redfield could have detected, and to find out where any arsenic from the GFAJ - 1 DNA ends up when the DNA is purified on a caesium chloride gradient.
Wolfe - Simon also says she would not expect to find arsenic in DNA analysed on a caesium chloride gradient, because the arsenic - containing DNA might be so fragile that it would break apart and appear only in very faint bands separate from the bulk of the cell's DNA.
They found that they contain only negligible amounts of radioactive caesium, and are safe for consumption.