Fukushima Daiichi: Radiation levels still high but dropping 30 km northwest of plant

MEXT has reported radiation readings at several location 20 km or more away from the Fukushima Daiichi nuclear plant.

 

 

 

 At monitoring post 32, which is 30 km northwest of Fukushima Daiichi

132.0 μSv/h at 2011/3/19 11:20 (010:20:00 p.m. Friday March 18 ET)

136.0 μSv/h at 2011/3/19 10:20 (09:20:00 p.m. Friday March 18 ET)

135.0 μSv/h at 2011/3/19 9:20 (08:20:00 p.m. Friday March 18 ET)

At this radiation level, 8 hours of exposure outdoors would exceed the annual permissable exposure of 1 mSv for the general public.

Previous readings at this location

150 μSv/hr Mar 18 13:32 (00:32:00 Friday March 18 ET)

140 μSv/hr Mar 18 12:33 (11:32:00 Thursday March 17 ET)

140 μSv/hr Mar 18 11:33 (10:32:00 Thursay March 17 ET)