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Day 9 Fukushima 1 Nuclear Accidents
Day 9 Fukushima 1 Nuclear Accidents
11:14 PM
Posted by Energetic
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.
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 µSv/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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This entry was posted on October 4, 2009 at 12:14 pm, and is filed under
Fukushima 1 Nuclear Accidents Timeline
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