Radioactive Strontium Detected in Yokohama - High Radiation Levels Detected in Tokyo

[kristopher]

Radioactive Strontium Detected in Yokohama
High Radiation Levels Detected in Tokyo's Setagaya Ward
Thursday, October 13, 2011

Tokyo- (PanOrient News) Radioactive strontium exceeding normal quantities has been detected in sediment from atop an apartment building in Yokohama, , south of Tokyo, and radiation levels as high as 2.707 microsieverts per hour have been detected on a local sidewalk in Tokyo's Setagaya Ward, Japanese media reported.

The strontium 90 was detected in Yokohama, some 250 kilometers from the damaged Fukushima Daiichi nuclear power plant, by a private agency that conducted the test upon the request of a resident. This is the first time strontium at a concentration of over 100 becquerels per kilogram has been found beyond 100 km from the Fukushima plant.

While the discovery of 195 becquerels of strontium 90 in the rooftop sediment has fueled concerns that leaked radiation may have spread further than the government had expected, the officials said the city office is carefully examining where the material came from, Kyodo reported.

Strontium 90 has been detected at concentrations roughly between 10 to 20 becquerels at various places across Japan prior to the nuclear crisis triggered by the March 11 earthquake and tsunami.

The Yokohama city ...

http://www.panorientnews.com/en/news.php?k=1290

Setagaya ward is in the heart of Tokyo.