Buesseler reviewed the range of current estimates of the total
cesium releases.
In a related development, Miyagi Prefecture said Friday it detected radioactive
cesium in straw for beef cattle at three farms, at levels up to 2.7 times the state-set safety limit.
After several years of rhetoric on the subject of using a rubidium oscillator disciplined by GPS as a replacement for the high cost
cesium standard, and after several attempts in industry to produce such an instrument, a truly competitive instrument is now available.
Fortunately,
cesium shows only modest biomagnification in marine food chains--much less than mercury, a toxic metal, or many other harmful organic compounds such the insecticide DDT and polychlorinated biphenyls (PCBs), Fisher said.
Tuna pick up the radioactive bits of
cesium mainly through two vectors: eating other contaminated fish and taking in contaminated water through their gills.
Excessive levels of radioactive
cesium were found in the distributed beef kept at a restaurant in the city of Shizuoka and at a wholesaler in Tokyo, according to the officials.
Using computer models and weather reports, Wotawa and his colleagues pinned down the source of the
cesium: the fires that typically rage unchecked through the boreal forests of Siberia, Alaska, and northern Canada.
They say an algae strain called nak 9 was most efficient at eliminating
cesium without any special treatment needed.
8 ( ANI ): More than 30 hotspots of radioactive
cesium concentrations have been discovered in the Pacific Ocean, as far as Abukuma River in Miyagi Prefecture, 70 km north of the Fukushima No.
The operator of the crippled Fukushima Daiichi nuclear power plant said Tuesday that the density of radioactive
cesium in groundwater by the sea at the plant has soared in the past several days, adding that the reason for the sudden rise in toxicity is unknown.
The clocks, most of them governed by the ultrasteady vibrations of electrons in
cesium atoms, are accurate to a tenth of a billionth of a second a day.
