You may recall that Tokyo Resistance measured hot spots in Tokyo.
Measurement was conducted in 6~9/2011
Red line shows cesium 137.
About the Bq/kg, now they are waiting for the result from lab in Germany.
Location
Location
5m from daycare koenji minami, suginami ku tokyo
Location
Location
Beside a wall children play around. 
Location
Small pedestrian walk in minami koenji, suginami ku 
Location
Location
Minami koenji near chuo koen playground entrance 
Location