Radiological Monitoring and Consequences - 19 April 2011

Fukushima Nuclear Accident
Radiological Monitoring
and Consequences
19 April 2011

Gamma Dose Rates in 7 Prefectures24 March – 18 April
Natural Background: 0.1 µSv/h

Gamma Dose Rate in 47 Prefectures on 18 April
Fukushima prefecture: 1.9 µSv/h

Daily deposition of I-131 (Bq /m2)1 to 18 April

Daily deposition of Cs-137 (Bq/m2)1 to 18 April

IAEA measurements
Route D: West of the F-NPP
Gamma dose rate (µSv/h) from 23 March to 18 April

IAEA measurements
Route D: West F-NPP
Beta + gamma contamination (MBq/m2)

Monitoring of Radioactivity in FoodstuffsReported on 18 April by MHLW
23 samples
April 8,15, 17and 18
8 prefectures (Chiba, Fukushima, Gunma, Hokkaido, Ibaraki, Niigata, Saitama and Yamagata).
Analytical results for:
various vegetables and leafy vegetables (8 samples)
shiitake mushrooms (4),
a fruit (strawberry),
a fish (salmon) and
unprocessed raw milk (9)
I-131, Cs-134 and/or Cs-137 were either not detected or were belowthe regulation values set by the Japanese authorities.

Monitoring of drinking water19 April
I-131 and Cs-137 are far below restriction levels in all prefectures
Recommendations for restrictions for infants based on I-131 in place in 1 village of Fukushima prefecture as precautionary measure

Radiological Monitoring and Consequences - 19 April 2011

by International Atomic Energy Agency

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Radiological Monitoring and Consequences - 19 April 2011 Presentation Transcript