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Details
  • The DOST-PNRI continues to closely monitor the situation at the Fukushima-Daiichi Nuclear Power Plant.
  • The condition in the plant remains very serious but not worsening.
  • The Comprehensive Nuclear Test Ban Treaty Organization (CTBTO) air monitoring station in the Philippines being serviced by the DOST-PNRI detected the following radioactivity concentrations: 

Day

Iodine-131
*(µBq/m3)

Cesium-134
(µBq/m3)

Cesium-137
(µBq/m3)

March 23

33

4.2

5.7

March 24

480

92

120

March 25

54

6.3

7.7

March 26

20

0.7

0.7

March 27

47

2.6

3.1

March 28

93

4.4

5.3

*microbecquerels per cubic meter; 1 microbecquerel = 1 x 10-6 becquerel

Details
  • The DOST-PNRI continues to closely monitor the situation at the Fukushima-Daiichi Nuclear Power Plant.
  • The condition in the plant remains very serious but not worsening.
  • The Comprehensive Nuclear Test Ban Treaty Organization (CTBTO) air monitoring station in the Philippines being serviced by the DOST-PNRI detected the following radioactivities:

Radioisotope

March 23
*(in µBq/m3)

March 24
(in µBq/m3)

March 25
(in µBq/m3)

March 26
(in µBq/m3)

Iodine-131

33

480

54

20

Cesium-134

4.2

92

6.3

0.7

Cesium-137

5.7

120

7.7

0.7

*microbecquerels per cubic meter

  • The peak values on March 24 correspond to a dose rate of 0.015 nanosieverts per hour (nSv/hr) which is approximately 1/7000 of the dose rate due to natural radioactivity.
  • Latest DOST-PNRI RADIATION LEVEL CHECK at PNRI grounds as of 1:00 PM, March 29, 2011: 94 to 118 nSv/hr (nanosieverts per hour), STATUS: NORMAL
  • Based on the PAGASA model, air parcel coming from northern Japan is forecasted to move east towards the Pacific Ocean for the next three days.
  • For the latest information, please access the following websites:

Details
  • The DOST-PNRI continues to closely monitor the situation at the Fukushima-Daiichi Nuclear Power Plant.
  • The condition in the plant remains very serious but not worsening.
  • Extremely high levels of radiation (10 million times normal) appeared to be a reporting error and had been retracted by Tokyo Electric Power Company (TEPCO). Nevertheless, high levels of radiation remain inside the nuclear power plant but pose danger only to the emergency workers.
  • Environmental radiation monitoring all over the world including the Philippines has detected very tiny amounts of radioactive isotopes which appeared to be coming from the Fukushima nuclear power plant and which pose no human health hazards.
  • Latest DOST-PNRI RADIATION LEVEL CHECK at PNRI grounds as of 9:00 AM, March 28, 2011: 93-115 nSv/hr (nanoSieverts per hour), STATUS: NORMAL
  • Based on the PAGASA model, air parcel coming from northern Japan is forecasted to move east towards the Pacific Ocean for the next three days.
  • For the latest information, please access the following websites:

Details
  • The DOST-PNRI continues to closely monitor the situation at the Fukushima-Daiichi Nuclear Power Plant.
  • With AC power connected, instrumentation continues to be recovered in Units 1, 2, and 4. Workers returned after being evacuated from Units 3 and 4 on March 23, following confirmation that black smoke emissions from Unit 3 had ceased.
  • According to the IAEA, the overall dose rates reported on-site appeared to be trending downward from 1,930 to 210 microsieverts per hour between 21 to 23 March 2011.
  • Japanese authorities continue to monitor the level of radioactivity in food and water and the distribution of contaminated food has been restricted/banned for consumption.
  • Monitoring at 30-km offshore from Fukushima by ships of the Japanese Authorities showed, as of 24 March 2011, that surface seawater concentrations ranged from 24.9 to 76.8 becquerels per liter (Bq/l) of Iodine-131, and 11.2 to 24.1 Bq/l for Cesium-137. The maximum permissible concentrations in water are 40 Bq/l for Iodine-131 and 90 Bq/l for Cesium-137.
  • There are internationally agreed Codex Guideline Levels (GLs) for radionuclide levels in internationally traded food following a nuclear or radiological emergency. These GLs are published by the Joint Food and Agriculture Organization/World Health Organization Codex Alimentarius Commission. Food with radioactivity levels below these GLs is safe for people to eat. When the GLs are exceeded, national governments must decide whether and under what circumstances the food should be allowed to be distributed within their territory or jurisdiction.
  • The PNRI adopted the GLs of the Codex Alimentarius Commission in its Administrative Order No.1 Series of 2009 which can be accessed at  its website: (http://www.pnri.dost.gov.ph/pnri.php?pnri=nsr&Nsr=dbsys).
  • There is continuous screening for radioactivity of container vans and cargo from abroad using radiation portal monitors at the Port of Manila.
  • Wind direction based on the PAGASA model is forecasted to move towards the Pacific Ocean for the next three days.
  • For the latest information, please access the following websites:
  • For further advisories, please call the PNRI trunklines with Tel Nos. 929-6010 to 19 or visit the following:
  • Latest DOST-PNRI RADIATION LEVEL CHECK at PNRI grounds as of 3:00 PM, March 24, 2011: 95-115 nSv/hr (nanosieverts per hour)
  • STATUS: NORMAL