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Due to the short range of absorption and inability to penetrate the outer layers of skin, alpha particles are not, in general, dangerous to life unless the source is ingested or inhaled, in which case they become extremely dangerous.[5] Because of this high mass and strong absorption, if alpha-emitting radionuclides do enter the body (upon being inhaled, ingested, or injected, as with the use of Thorotrast for high-quality X-ray images prior to the 1950s), alpha radiation is the most destructive form of ionizing radiation. It is the most strongly ionizing, and with large enough doses can cause any or all of the symptoms of radiation poisoning. It is estimated that chromosome damage from alpha particles is anywhere from 10 to 1000 times greater than that caused by an equivalent amount of gamma or beta radiation, with the average being set at 20 times. The powerful alpha emitter polonium-210 (a milligram of 210Po emits as many alpha particles per second as 4.215 grams of 226Ra) is suspected of playing a role in lung cancer and bladder cancer related to tobacco smoking.[6] 210Po was used to kill Russian dissident and ex-FSB officer Alexander V. Litvinenko in 2006.https://en.wikipedia.org/wiki/Alpha_particle#Biological_effects
Nineteen radioisotopes of americium have been characterized, with the most stable being 243Am with a half-life of 7,370 yearsAmericium-243Americium-243 has a mass of 243.06138 g/mol and a half-life of 7,370 years, the longest lasting of all americium isotopes. It is formed in the nuclear fuel cycle by neutron capture on plutonium-242 followed by beta decay.[14] Production increases exponentially with increasing burnup as a total of 5 neutron captures on 238U are required.It decays by either emitting an alpha particle (with a decay energy of 5.27MeV)[14] to become 239Np, which then quickly decays to 239Pu, or infrequently, by spontaneous fission.[15]243Am is a hazardous substance, because it can cause cancer. 239Np, which is formed from 243Am, emits dangerous gamma rays, making 243Am the most dangerous isotope of Americium.- https://en.wikipedia.org/wiki/Isotopes_of_americium
Here are isotopes of interest from the Fukushima Daiichi man made nuclear disaster.This is what has polluted the Pacific, caused extinction events and will continue to, and the industry has nothing but profit for it all.
Alpha particles mean we are all dead and there's nothing we can do about it:
In August, Tepco admitted that a cumulative 20 trillion to 40 trillion becquerels of radioactive tritium had “probably” leaked into the Pacific Ocean since the disaster; the legal limit of radiation in water is 30 becquerels per liter.
Japan recently agreed to accept the help from France, which will help decommission and dismantle the crippled nuclear reactors at Fukushima. Russia, which originally offered to help Japan contain the Fukushima nuclear disaster (and again recently renewed its offer), is still waiting to be taken up on its offer.But while Chernobyl and Fukushima were the only two nuclear disasters to measure Level 7 on the International Nuclear Event Scale, Chernobyl only contained 180 tons of nuclear material prior to the catastrophe; comparatively, Fukushima contained 1,760 tons of nuclear material.
How Radioactive is Our Ocean?Quotethe legal limit of radiation in water is 30 becquerels per liter.
the legal limit of radiation in water is 30 becquerels per liter.
Could you provide evidence that those isotopes are being found in the Pacific? I could only see them listed on the list of isotopes to look for on the samples taken from the area around the reactor, but I didn't read the whole PDF.
Seeing that we aren't dead I suppose there aren't that much alpha particles being absorbed.
OK, how many litres does the Pacific ocean has?According to NOAA, the Pacific ocean has 660,000,000 km3, equivalent to 6.6e+20 litres, so 40 trillion becquerels (40,000,000,000,000? We don't use billions and trillions like the US uses) on the Pacific ocean represent something like 6.1e-8=0.00000061 becquerels per liter, so I doubt it will negatively affects distant areas of the Pacific ocean. Around that area is a different story.PS: I do not guarantee that the results of my calculations are correct.
I'll hop on a plane, then a boat, and head out there with the required equipment ASAP. Give me a few weeks. *chuckles*
243Am has a half-life of 7,370 years, so give it some time. It's a slow-motion extinction level event. But it is without a doubt an extinction level event. *not laughing so much now*
Really. Haven't you been paying attention over the last 4 years?If not, then here's the latest U.S. West Coast "head scratcher".Scientists have been "baffled" by these mass die offs for four years.What's so hard to understand?
Facts, please.
Fact is - three cores are missing, radioactive waste in untold amounts has been spewing into the Pacific for 4 years and everyone is basically saying it's really nothing to worry about. Is that the side of the argument you're on?
Nothing to worry about. If you're ok with that, then so am I.
...so I doubt it will negatively affects distant areas of the Pacific ocean
No, but I don't accept something just because someone says so.
snide remarks about those who do NOT agree with you or ASK you to prove your statements will certainly keep YOU from the adult tableyou should change your name to this is who I am
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Topic: Alert: R&D Documents - "Treatment & Disposal Of Radioactive Waste At Fukushima" (Read 7104 times)
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