- The DOST-PNRI continues to closely monitor the situation at the Fukushima Daiichi Nuclear Power Plant. The following are updates on the nuclear power plant as the information becomes available and verified:
- Stable cooling has been achieved in the spent fuel pools. The reactors continue to be cooled by purified and recirculated water.
- The discharges of contaminated effluents have been contained.
- Work is proceeding to construct full external enclosures around the reactor buildings to limit airborne radioactivity releases and to protect the damaged buildings from the harsh weather conditions. The installation of reactor building cover has been started in Unit 1.
- Efforts are continuing to enable evacuees to return to their homes.
- Measurements of activity concentrations of Iodine-131, Cesium-134 and Cesium-137 radionuclides in marine water samples as of 29 August 2011 at sampling points offshore (within 30 km) from the plant have shown nothing is detectable.
- The PNRI continues to analyze food products and animal feeds imported from Japan. All had activity concentrations lower than 3 Bq/kg of Cesium-134 and Cesium-137, and lower than 1 Bq/kg of Iodine-131. The WHO Codex Alimentarius Commission recommended limit for total radioactivity concentration in food for international trade is 1000 Bq/kg.
- The Comprehensive Nuclear Test Ban Treaty Organization (CTBTO) air monitoring station, PHP 52, in the Philippines being serviced by the DOST-PNRI is monitoring radionuclide activity concentrations in the atmosphere. Iodine-131, Cesium-134 and Cesium-137 have not been detected since 2 June 2011.
- The PNRI continues to monitor radioactivity in environmental samples. The detected Cesium-137 in various samples are within baseline level. Results of analysis are shown below:
Activity Concentration of Seawater Samples:
|
Sampling Date |
Sample Type |
Location |
131I, mBq/L |
134Cs, mBq/L |
137Cs, mBq/L |
|
13-Jul |
Seawater |
Siargao Is. Surigao del Norte |
Not detected |
Not detected |
Not detected |
|
14-Jul |
Seawater |
Siargao Is. Surigao del Norte |
Not detected |
Not detected |
Not detected |
Activity Concentration of Marine Biota Samples:
|
Sampling Date |
Sample Type |
Location |
131I, Bq/kg |
134Cs, Bq/kg |
137Cs, Bq/kg |
|
03-Jun |
Spadefish |
Isabel, Leyte |
Not detected |
Not detected |
Not detected |
|
Parrotfish |
Isabel, Leyte |
Not detected |
Not detected |
0.9 |
|
|
Cavalla |
Isabel, Leyte |
Not detected |
Not detected |
1.22 |
|
|
White shrimp |
Isabel, Leyte |
Not detected |
Not detected |
Not detected |
|
|
Squid |
Isabel, Leyte |
Not detected |
Not detected |
Not detected |
|
|
Sea cucumber |
Isabel, Leyte |
Not detected |
Not detected |
Not detected |
|
|
06-Jun |
Indian Mackerel |
Eastern Samar |
Not detected |
Not detected |
Not detected |
|
Fusilier |
Eastern Samar |
Not detected |
Not detected |
Not detected |
Activity Concentration of Soil Samples:
|
Sampling Date |
Sample Type |
Location |
131I, Bq/kg |
134Cs, Bq/kg |
137Cs, Bq/kg |
|
28-Mar |
Topsoil |
PNRI |
Not detected |
Not detected |
0.06 |
|
Topsoil |
PNRI |
Not detected |
Not detected |
0.18 |
|
|
01-Apr |
Topsoil |
Gattaran, Cagayan |
Not detected |
Not detected |
Not detected |
|
04-Apr |
Topsoil |
Tuguegarao, Cagayan |
Not detected |
Not detected |
0.87 |
|
05-Apr |
Topsoil |
La Mesa Dam |
Not detected |
Not detected |
Not detected |
|
Topsoil |
La Mesa Dam |
Not detected |
Not detected |
0.5 |
|
|
08-Apr |
Topsoil |
Tanay, Rizal (Site-1) |
Not detected |
Not detected |
Not detected |
|
Topsoil |
Tanay, Rizal (Site-3) |
Not detected |
Not detected |
Not detected |
|
|
Topsoil |
Tanay, Rizal (Site-2) |
Not detected |
Not detected |
Not detected |
|
|
Topsoil |
Baler, Aurora |
Not detected |
Not detected |
Not detected |
|
|
Topsoil |
Baler, Aurora |
Not detected |
Not detected |
1.78 |
|
|
Topsoil |
Baler, Aurora |
Not detected |
Not detected |
1.1 |
|
|
13-Apr |
Topsoil |
Baler, Aurora |
Not detected |
Not detected |
Not detected |
|
14-Apr |
Topsoil |
Baler, Aurora |
Not detected |
Not detected |
1.87 |
|
Topsoil |
Baler, Aurora |
Not detected |
Not detected |
0.84 |
|
|
Topsoil |
Baler, Aurora |
Not detected |
Not detected |
1.74 |
- Latest DOST-PNRI RADIATION LEVEL CHECK at PNRI grounds as of 9:00 AM, 02 September 2011:
87 – 102 nSv/h, STATUS: NORMAL - The radiological and safety impact of the Fukushima Daiichi Nuclear Accident on the Philippines REMAINS INSIGNIFICANT.
- For the latest information, please access the following websites:
- International Atomic Energy Agency (IAEA) (http://www.iaea.org/newscenter/news/tsunamiupdate01.html)
- Nuclear and Industrial Safety Administration (NISA) of Japan (www.nisa.meti.go.jp/english/index.html)
- World Health Organization (http://www.who.int/hac/crises/jpn/en/index.html)
- Tokyo Electric Power Company (TEPCO) (http://www.tepco.co.jp/en/press/corp-com/release/index-e.html)
- For further advisories, please call the PNRI trunklines with Tel Nos. 929-6010 to 19 or visit the following:
- DOST (www.dost.gov.ph)
- PNRI (www.pnri.dost.gov.ph)
- STII (www.stii.dost.gov.ph)
