Sentences with phrase «caesium at»
Japan's damaged nuclear plant in Fukushima has been emitting radioactive iodine and caesium at levels approaching those seen in the aftermath of the Chernobyl accident in 1986.
https://www.newscientist.com/ Not exact matches
Wheat leaves that were open at the time of the greatest fallout were heavily contaminated, with combined levels of caesium - 134 and caesium - 137 ranging from thousands to about 1 million Bq kg - 1.
The second is currently defined by caesium atomic clocks, but optical clocks promise higher precision because their atoms oscillate at the frequencies of light rather than in the microwave band, so they can slice time into smaller intervals.
After the 1986 Chernobyl accident, the level of caesium contamination at which evacuation was mandatory was 1.48 MBq / m2.
At Fukushima Daiichi, only the volatile elements, such as iodine and caesium, are bubbling off the damaged fuel.
Similarly, says Wotawa, caesium - 137 emissions are on the same order of magnitude as at Chernobyl.
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.
The two clocks, one based on caesium atoms and the other on hydrogen, will communicate with a network of clocks back on Earth to compare performance across continents at a level that is equivalent to 10 trillionths of a second.
«With appropriate controls, the caesium - chloride - gradient data would constitute a relatively definitive refutation, at least for most scientists,» he wrote in an e-mail to Nature.
(source) There are some fish on the West coast being tested for radiation that have traces of caesium, indicating that they had been exposed at Fukushima.
After 45 days, this group was reported as having improved immune function, and most notably «spirulina was particularly efficient at deactivating radioactive caesium from their bodies.»
Liquid wastes containing radioactive caesium and strontium salts were stored in underground tanks at Hanford, which rabbits routinely burrowed into.