Marine Environment - Fukushima NPPs Potential Impact on the Marine Environment – Assessment of IAEA Environmental Laborato...
Seawater sampling off Fukushima (26 March 2011) carried out by Japanese Authorities <ul><li>Seawater sampling locations of...
Temporal trend on concentrations Data submitted by Japanese authorities Cs-137
Temporal trend on concentrations Data submitted by Japanese authorities I-131
Monitoring of the Marine environment   <ul><li>Comparison of Cs-137 seawater concentration with historical data </li></ul>...
Cs-137 Bq.m -3 Monitoring of the Marine environment  seawater concentration  <ul><li>30 km :  </li></ul><ul><ul><li>28 mar...
Temporal trends of concentration in seawater 330 m east of Discharge point Units 1 to 4
Temporal trends of concentrations in seawater at Units 5/6
Modelling Dispersion of an arbitrary initial discharge Courtesy to the Group SIROCCO of the Observatoire Midi-Pyrenées of ...
Modelling Dispersion of an arbitrary initial discharge
Modelling Dispersion of an arbitrary initial discharge
Modelling Modelling of the  deposition  on the sea surface and subsequent concentration
Upcoming SlideShare
Loading in...5
×

30 March 2011 Fukushima Nuclear Power Plant's Potential Impact on the Marine Environment - IAEA Environmental Lab Assessment

136,745

Published on

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
136,745
On Slideshare
0
From Embeds
0
Number of Embeds
13
Actions
Shares
0
Downloads
338
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

30 March 2011 Fukushima Nuclear Power Plant's Potential Impact on the Marine Environment - IAEA Environmental Lab Assessment

  1. 1. Marine Environment - Fukushima NPPs Potential Impact on the Marine Environment – Assessment of IAEA Environmental Laboratories on Data provided by Japan IAEA-Environmental Laboratories, Monaco
  2. 2. Seawater sampling off Fukushima (26 March 2011) carried out by Japanese Authorities <ul><li>Seawater sampling locations of Japanese Authorities </li></ul><ul><li>Transect about 30 km offshore, sample locations separated by 10 kilometres </li></ul><ul><li>Levels of dose rates were also measured as indicated </li></ul>
  3. 3. Temporal trend on concentrations Data submitted by Japanese authorities Cs-137
  4. 4. Temporal trend on concentrations Data submitted by Japanese authorities I-131
  5. 5. Monitoring of the Marine environment <ul><li>Comparison of Cs-137 seawater concentration with historical data </li></ul><ul><li>30 km offshore surface water concentrations are 3 to 4 orders of magnitude higher than the values measured in 2005 </li></ul><ul><li>330 m East of Fukushima Dai-ichi concentrations are up to 3 orders of magnitude higher than the values measured offshore </li></ul>1 10 3 10 4 10 5 10 6 10 2 10 1 10 7 10 8 April 2005 30 km Bq.m -3 [1 – 10 1 ] 1 10 3 10 4 10 5 10 6 10 2 10 1 10 7 10 8 24, 25 March 2011 Bq.m -3 [10 3 – 10 4 ] [10 5 – 10 7 ]
  6. 6. Cs-137 Bq.m -3 Monitoring of the Marine environment seawater concentration <ul><li>30 km : </li></ul><ul><ul><li>28 march, Concentrations increase at station 5 </li></ul></ul><ul><ul><li>Spatial distribution is more heterogeneous </li></ul></ul><ul><li>20 km : </li></ul><ul><ul><li>New station since 28 of march #9 </li></ul></ul><ul><li>300 m : </li></ul><ul><ul><li>Concentrations increase 2 orders of magnitude since 28 March </li></ul></ul>TEPCO MEXT 28 march, depth 132 m : Cs -137 not detected
  7. 7. Temporal trends of concentration in seawater 330 m east of Discharge point Units 1 to 4
  8. 8. Temporal trends of concentrations in seawater at Units 5/6
  9. 9. Modelling Dispersion of an arbitrary initial discharge Courtesy to the Group SIROCCO of the Observatoire Midi-Pyrenées of the University of Toulouse, CNRS Animations to be seen at: http://sirocco.omp.obs-mip.fr/outils/Symphonie/Produits/Japan/SymphoniePreviJapan.htm
  10. 10. Modelling Dispersion of an arbitrary initial discharge
  11. 11. Modelling Dispersion of an arbitrary initial discharge
  12. 12. Modelling Modelling of the deposition on the sea surface and subsequent concentration
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×