New Study: Over a Trillion becquerels of Fukushima radiocesium fell on Hawaii

Fukushima 311 Watchdogs

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University of Hawai’i at Mānoa, Oct 31, 2017
Fukushima-derived radiocesium fallout in Hawaiian soils… This study estimated the magnitude of cesium deposition in soil, collected in 2015-2016, resulting from atmospheric fallout… Detectable, Fukushima-derived 134Cs inventories ranged from 30 to 630 Bq m-2 and 137Cs inventories ranged from 20 to 2200 Bq m-2… This research confirmed and quantified the presence of Fukushima-derived fallout in the state of Hawai’i in amounts higher than predicted by models and observed in the United States mainland…
The Hawaiian Islands were expected to get minimal, below 10 Bq m-2 or lower, of Fukushima-derived fallout…
Fukushima-derived soil radiocesium concentrations, were greater than anticipated based on model-predicted Pacific atmospheric dispersion rates…
Maximum estimated values of 134Cs fallout on the islands of Hawaii and O’ahu constrained by precipitation and data from sites with less than 70% canopy cover were obtained by linear interpolation of all measured soil cesium concentrations…

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