Fukushima - Radiological Implications on Human Health, 25 March 2011

Fukushima Nuclear Accident
Radiological Implications on Human Health
25 March 2011

Gamma Dose Rates in microSievert per hour 15-24 March
Background: 0.1 microSv/hour

Deposition of I-131 and Cs-13723 to 24 March
Monitored by Japanese authority
47 Prefectures
Additional deposition detected in 7 prefectures
I-131: 42 to 16000 Bq/m2
Cs-137: 42 to 210 Bq/m2
I-131 Rate of deposition is decreasing (21 to 24 March)
[Tokyo: 320003600013000]

IAEA radiation monitoring team 25/03/11
Radius 34 to 62 km for NPP measurement of :
Contamination: 0.07 to 0.96 MBq/ m2
Dose rate: 0.73 to 8.8 microSv/ hour (background: 0.1 microSv/ hour)
Lower than yesterday

Radioactivity in food and milk
Radionuclides abovelevels recommended by the Japanese authorities:
I-131 in 5 raw milk samples (Fukushima Prefecture)
I-131 in 1 vegetable sample in Ibaraki Prefecture.
Cs-137 in vegetable sample in Ibaraki Prefecture

Drinking water
Analysis from 47 prefectures
Levels belowthe levels (both adult and children) recommended by the Japanese authorities.

Japanese authority measures for food, milk and drinking water
Restrictions on the distribution of:
milkin 2prefectures (Fukushima, Ibaraki)
certain vegetables in 4 prefectures (Fukushima, Ibaraki, Tochigi, Gunma).
Requested sampling of agricultural products in 6 neighbouring prefectures (Miyagi, Yamagata, Saitama, Chiba, Niigata and Nagano).

3 workers affected by radiation
3 workers exposed: 173-180 milliSv
2 of these 3 workers: Feet exposed to contaminated water
Dose permissible for emergency workers in life saving operation: 250 milliSv

IAEA monitoring team
NS Team
Team 1: In the field since last week
Team 2: Started yesterday
NA Team
IAEA/FAO assessment missionleft today
(Food, Environment, soil and water)

Fukushima - Radiological Implications on Human Health, 25 March 2011

by International Atomic Energy Agency on Mar 25, 2011

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