MAP: Fukushima radioactive plume over 3,000 miles wide by May 2013 — Only includes most contaminated area in Pacific with cesium more than 7 Bq/m³

Published: February 24th, 2014 at 9:17 am ET
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Center for Marine and Environmental Radiation, Woods Hole Oceanographic Institution, 2014:

*All sampling locations were along a straight line at 30°N. This is over 700 miles south of the most concentrated part of the Fukushima radioactive plume, which is centered at 40°N (see 2012 map at top of graphic below).

  1. 30.0, 147.79 — Apr 15, 2013, Depth: 500, Cs137: 4.8 Bq/m³, Cs134: 4.0 Bq/m³
  2. 30.0, 154.72 — Apr 17, 2013, Depth: 150, Cs137: 4.5 Bq/m³, Cs134: 2.7 Bq/m³
  3. 30.0, 178.45 — Apr 28, 2013, Depth: N/A, Cs137: 4.6 Bq/m³, Cs134: 3.1 Bq/m³
  4. 30.0, 178.45 — Apr 28, 2013, Depth: N/A, Cs137: 5.8 Bq/m³, Cs134: 3.3 Bq/m³
  5. 30.0, 179.72 — Apr 28, 2013, Depth: 50, Cs137: 8.2 Bq/m³, Cs134: 4.8 Bq/m³
  6. 30.0, -177.27 — Apr 29, 2013, Depth: 46, Cs137: 5.0 Bq/m³, Cs134: 2.8 Bq/m³
  7. 30.0, -175.54 — Apr 30, 2013, Depth: 50, Cs137: 3.7 Bq/m³, Cs134: 2.4 Bq/m³
  8. 30.0, -170.92 — May 01, 2013, Depth: 60, Cs137: 5.1 Bq/m³, Cs134: 2.7 Bq/m³
  9. 30.0, -160.59 — May 14, 2013, Depth: 45.75, Cs137: 4.6 Bq/m³, Cs134: 2.7 Bq/m³
  10. 30.0, -160.59 — May 14, 2013, Depth: 165, Cs137: 4.9 Bq/m³, Cs134: 3.1 Bq/m³

View test results on the map here (click ‘All Years’ in top right)

Published: February 24th, 2014 at 9:17 am ET
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