Fukushima 1 Nuclear Accident Day 9: Saturday, 19 March 2011

00:45
Water dousing resumes on Unit 3 by hyper rescue troop with the cooperation of Tokyo Fire Department. Finished at 01:10.
12:50
Power line is connected to power plant but not activated yet.
19:07
Milk and spinach from areas around power plant have been found with radiation level exceed Japan's standards. Japan government halt sales of all food from Fukushima prefecture.
Status of Fukushima I at 10:00 on 19 March

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6
Power output (MWe) 460 784 784 784 784 1100
Type of reactor BWR-3 BWR-4 BWR-4 BWR-4 BWR-4 BWR-5
Status at earthquake In service -> shutdown In service -> shutdown In service -> shutdown Defueled Outage Outage
Fuel integrity 70% damaged 33% damaged Damaged No fuel rods Not damaged Not damaged
Pressure vessel integrity Unknown Unknown Unknown Not damaged Not damaged Not damaged
Containment integrity Not damaged Damage suspected Might not be damaged Not damaged Not damaged Not damaged
Core cooling system 1 (ECCS/RHR) Not functional Not functional Not functional Not necessary Not necessary Not necessary
Core cooling system 2 (RCIC/MUWC) Not functional Not functional Not functional Not necessary Not necessary Not necessary
Building integrity Severely damaged Slightly damaged Severely damaged Severely damaged Vent hole opened on rooftop to prevent hydrogen explosion Vent hole opened on rooftop to prevent hydrogen explosion
Pressure vessel, water level Fuel exposed Fuel exposed Fuel exposed Safe Safe Safe
Pressure vessel, pressure Stable Unknown Stable Safe Safe Safe
Containment pressure Unknown Low Low Safe Safe Safe
Seawater injection into core Continuing Continuing Continuing Not necessary Not necessary Not necessary
Seawater injection into containment building Continuing To be decided Continuing Not necessary Not necessary Not necessary
Containment venting Temporarily stopped Temporarily stopped Temporarily stopped Not necessary Not necessary Not necessary
Integrity of fuel in Spent Fuel Pool (SFP) Water injection to be considered (no data) SFP level low,
Water injection continues
SFP level low,
Preparing water injection,
Hydrogen from SFP exploded
SFP temperature increasing SFP temperature increasing
Environmental effect (NPS border) 304 ┬ÁSv/hour at 3:30, 19 March
Evacuation radius 20 km from Nuclear Power Station (NPS). People who live between 20 km to 30 km from the Fukushima I Nuclear Power Station are to stay indoors.
INES Units 1-3, Level 5 (estimated by Japanese NISA and accepted by the international IAEA); Level 6 (estimated by the French Nuclear Safety Authority, ASN); Unit 4, Level 3
22:21
Radioactive iodine in trace amounts have been found in tap water in Tokyo and 5 other areas near Fukushima; and caesium-137 trace amounts have been found in Tochigi and Gunma prefectures. The Japanese government says the amounts did not exceed safety limits and should not affect human health.
23:52
Radioactive iodine beyond limit detected in tap water in a town in Fukushima, reports Kyodo News with reference to government.

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