via Goddard’s Journal / Published February 17, 2015 / What will be the impact of Fukushima on the North American coast? This video covers the key science you need to know to reasonably answer that question.
Studies cited in order presented…
– Behrens et al (2012). Model simulations on the long-term dispersal of 137Cs released into the Pacific Ocean off Fukushima. Environ Res Lett 7:034004.
– Folsom & Mohanrao (1962). Variation of Cs-137 in California Coastal Sea Water. J Rad Res 3(1): 1-3.
– the Cs137 measure for ‘now’ is the average of shore-line measures from 2014
– Povinec et al (2013). Cesium, iodine and tritium in NW Pacific waters – a comparison of the Fukushima impact with global fallout. Biogeosciences 10(8):5481-5496.
– Rossi et al (2013). Multi-decadal projections of surface and interior pathways of the Fukushima cesium-137 radioactive plume. Deep Sea Res Part I Oceanogr Res Pap 80: 37–46.
– Rossi et al (2014). Corrigendum to “Multi-decadal projections of surface and interior pathways of the Fukushima cesium-137 radioactive plume”. Deep Sea Res Part I Oceanogr Res Pap, 10.1016/j.dsr.2014.08.007
– Nakano & Povinec (2012). Long-term simulations of the 137Cs dispersion from the Fukushima accident in the world ocean. J Enviro Rad. 111: 109–115.
– Abbot & Mix (1979). Radiation effects of tritiated seawater on development of the goose barnacle, Pollicipes polymerus. Health Phys. 36(3):283-7.
– UNSCEAR (2008). Sources and effects of ionizing radiation, Vol II Annexes C,D E, page 57.
– Driver (1994). Ecotoxicity Literature Review of Selected Hanford Site Contaminants, PNL-9394, Table 2.1.
– FAO (2011). Review of the state of world marine fishery resources. Technical Paper 569, Fig A3.
– Potassium radioactivity in seawater 12 Bq/liter = 12,000 Bq/m^3
– Peak level near-Fukushima from (see Figure 2): Buesseler (2011). Impacts of the Fukushima Nuclear Power Plants on Marine Radioactivity. Environ Sci Technol. 1;45(23):9931-5.
– Recent Fukushima ocean Cs-137 fallout from : http://www.tepco.co.jp/en/nu/fukushim… Radioactivity has stabilized around 1,000 Bq/m³ near discharge points within the “Near Fukushima” area, with a slight downward trend – Note: 1 Bq/L = 1,000 Bq/m³
– Madigan et al (2013). Pacific bluefin tuna transport Fukushima-derived radionuclides from Japan to California. Environ Sci Technol, 47(5), 2287−2294
– FDA food-safety level for Cesium 134+137
As per http://lamar.colostate.edu/~hillger/c… “1 cubic meter of water is approximately 1000 kilograms,” the FDA’s Cs(134+137) level of 1,200 Bq/kg is approximately 1,200,000 Bq/m³ of seawater.
– Fisher et al (2013). Evaluation of radiation doses and associated risk from the Fukushima nuclear accident to marine biota and human consumers of seafood. PNAS, 110(26), Table 1.
– Johansen et al (2015). Radiological dose rates to marine fish from the fukushima daiichi accident: the first three years across the north pacific. Environ Sci Technol. 49(3):1277-85.
Table S5: http://pubs.acs.org/doi/suppl/10.1021… Note: nobody eats the fish in the FDNPP port, fishing other than for testing is banned there. Johansen and colleagues’ Table S5 data simply assumes if those fish were consumed, then the doses would be…
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SOURCE: Goddard’s Journal