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if tens of thousands of times the radiation of fukushima currently exists within the ocean, then a drop of blue dye in a red-dye bucket will cause no perceptible difference.
I have made the exact same point over and over again.
Radiation is everywhere, in the water you drink, in the ocean, in the dirt.
If you're down to do the necessary work to refute my assertion that fukushima is a tiny drop in the bucket compared to what's already there, then go for it.
The Pacific Ocean is a vast place, stirred by energetic, fluctuating currents on various scales, all contributing to an effective dilution of the contaminated body of sea water arising from the localized, idealized short-term discharge from the stricken Dai-ichi NPPs. The goal of the present study is to provide a clearer perspective of the spatio-temporal evolution of that dilution process over a decadal time span for a tracer corresponding to 137Cs injected over a near-coastal region off northeastern Japan. The fate of that dye (with a half-life corresponding to 137Cs) was examined by a host of simulations with a set of ocean circulation models differing in the representation of mesoscale eddy fluxes. With caution given to the various idealizations (unknown actual oceanic state during release, unknown release area, no biological effects included, see section 3.4), the following conclusions may be drawn. (i) Dilution due to swift horizontal and vertical dispersion in the vicinity of the energetic Kuroshio regime leads to a rapid decrease of radioactivity levels during the first 2 years, with a decline of near-surface peak concentrations to values around 10 Bq m−3 (based on a total input of 10 PBq). The strong lateral dispersion, related to the vigorous eddy fields in the mid-latitude western Pacific, appears significantly under-estimated in the non-eddying (0.5°) model version. (ii) The subsequent pace of dilution is strongly reduced, owing to the eastward advection of the main tracer cloud towards the much less energetic areas of the central and eastern North Pacific. (iii) The magnitude of additional peak radioactivity should drop to values comparable to the pre-Fukushima levels after 6–9 years (i.e. total peak concentrations would then have declined below twice pre-Fukushima levels). (iv) By then the tracer cloud will span almost the entire North Pacific, with peak concentrations off the North American coast an order-of-magnitude higher than in the western Pacific.
“We detected cesium-134, a contaminant from Fukushima, off the northern California coast. The levels are only detectable by sophisticated equipment able to discern minute quantities of radioactivity,” said Ken Buesseler, a WHOI marine chemist, who is leading the monitoring effort. “Most people don’t realize that there was already cesium in Pacific waters prior to Fukushima, but only the cesium-137 isotope. Cesium-137 undergoes radioactive decay with a 30-year half-life and was introduced to the environment during atmospheric weapons testing in the 1950s and ‘60s. Along with cesium-137, we detected cesium-134 – which also does not occur naturally in the environment and has a half-life of just two years. Therefore the only source of this cesium-134 in the Pacific today is from Fukushima.” - See more at: ourradioactiveocean.org...
The amount of cesium-134 reported in these new offshore data is less than 2 Becquerels per cubic meter (the number of decay events per second per 260 gallons of water). This Fukushima-derived cesium is far below where one might expect any measurable risk to human health or marine life, according to international health agencies. And it is more than 1000 times lower than acceptable limits in drinking water set by US EPA. - See more at: ourradioactiveocean.org...
Funny I couldn't find any 134, though I only looked through a dozen
Once, whales faced only natural threats, such as predators and disease. These days, whales encounter many other dangers related to human activities.
Industrial waste and litter pollute the sea, including plastic debris, which can float in thewater for some time. A whale may mistake it for food, swallow it, and get a blocked gut as a result. The animal then starves to death.
Ships can run into whales, and boat noises, such as sonar, can disrupt whales’ ability to communicate and navigate. Each year, an estimated 300,000 whales die because of fishing activities.
You can't have it both ways. You said the cessium is no longer detected cause the half life, yet now it's killing whales off the coast of alaska? Explain that one to me.