Radiation would be alpha and beta particles, and gamma waves. These are dangerous to the 'Fukushima 50' or others exposed to them, but not to the world at large. The serious health threat here is radioactive materials escaping (isotopes of iodine, cesium, etc). Those materials, carried in wind currents and in earth and sea, get ingested by living things (e.g. humans and fish and asparagus), and accumulate, and can then be ingested by other living things which eat them (think: food web).
Here's the key point which you will not have grasped from reading the mainstream media: the danger lies with these 'internal emitters' - that is, isotopes which are ingested (breathed in or eaten). That is what will cause cancers worldwide. That is what gives this crisis global scope. NOT radiation (alpha, beta, gamma) emanating from the plant.
So from the standpoint of global public health (and remember: scientists insist that residue from Chernobyl continues to this day to cause new cases of thyroid cancer, years after the isotopes themselves have degraded to harmlessness), the statement should have read:
"Radioactivity [or radioisotopes] will continue to escape from the complex into the environment"
With this understanding, it is worth noting that such isotopes have in fact already been detected on both the east and west coasts of America, so we can safely assume that if they've reached the heartland by now or will very soon. The only effective 'defense' I know of - and a very partial, limited one at that - is to increase uptake of iodine via kelp or supplement of some form. At least, this may protect from iodine-131, which tends to lodge in the thyroid and leads to thyroid cancer years later. As the wikipedia page on I-131 puts it:
"Much smaller incidental doses of iodine-131 than are used in medical treatment, are thought to be the major cause of increased thyroid cancers after accidental nuclear contamination. These cancers happen from residual tissue radiation damage caused by the I-131, and usually appear years after exposure, long after the I-131 has decayed."
Wow, how very sad Verity. Thanks for that though.
Seems they aren't getting info or help from their government. How hard it must be for him to do that video and admit his government has failed his city while begging for help from the rest of the world. How horrible things must be for the 20 thousand people who stayed while 50 thousand evacuated.
At least after hurricanes here we can go outside and begin cleaning up even if we have no power for weeks. I know that is no comparison to what they are going through but the extent of my personal disaster experience is from many hurricanes. We lost a new garden one year, over 100 tomato plants in just one section but at least we could replant. 47,000 in damages to our home. The roof almost' came off and FEMA determined the whole thing needed replaced including the plywood. Pool enclosure in the pool, not replacing it covered my deductible. Geez, that's all so trivial now in comparison. Frances and Jeanne hit hard here just 3 weeks apart in 2004.
How very sad. My heart hurts for them...
Prayers, many prayers for them.
In the alternative demineralization process, dissolved radioactive substances are extracted by passing through an ion- exchange resin. The evaporator residues and spent resins contain the removed radioactive material and are disposed of in a safe manner. The choice between evaporation and demineralization depends on circumstances and may vary from one plant to another.
http://www.tutorvista.com/physics/nuclear-energy-waste-disposal
http://emergency.cdc.gov/radiation/glossary.aspFrom Wikipedia:
Ion-exchange in metal separation
Ion-exchange processes are used to separate and purify metals, including separating uranium from plutonium and other actinides, including thorium; and lanthanum, neodymium, ytterbium, samarium, lutetium, from each other and the other lanthanides. There are two series of rare earth metals, the lanthanides and the actinides. Members of each family have very similar chemical and physical properties. Ion-exchange was for many years the only practical way to separate the rare earths in large quantities. This application was developed in the 1940's by Frank Spedding. Subsequently, solvent extraction has mostly supplanted use of ion exchange resins except for the highest purity products.
A very important case is the PUREX process (plutonium-uranium extraction process) which is used to separate the plutonium and the uranium from the spent fuel products from a nuclear reactor, and to be able to dispose of the waste products. Then, the plutonium and uranium are available for making nuclear-energy materials, such as new reactor fuel and nuclear weapons.
The ion-exchange process is also used to separate other sets of very similar chemical elements, such as zirconium and hafnium, which incidentally is also very important for the nuclear industry. Zirconium is practically transparent to free neutrons, used in building reactors, but hafnium is a very strong absorber of neutrons, used in reactor control rods.
LOL, Hollyblue, I home can them in glass canning jars. I love it! I have a home pressure canner I can put up to 14 quart jars in at a time. I can even can meats! It all started because of the 2004 storms. We lost the meat from two freezers, we didn't have a generator back then. When they were over I wanted to figure out how to can the meats from two freezers so that I did not have to run both on the 5500W portable generator. I had to change from electric stove to gas though, I kept burning out electric elements due to the weight of the filled canner, lol! Now when we get a hurricane warning I start canning everything, ha! Preservation!
WAY OT but...You don't need a pressure canner for tomatoes though, just add a tsp of lemon juice to each quart jar to increase acidity as tomatoes are acidic anyway, then "water bath" by boiling them in the jars!
Chemical, sawdust, newspaper mix used to plug leak at nuclear plant
Tokyo (CNN) -- Workers on Sunday poured a chemical compound mixed with sawdust and newspaper into a crack at Japan's Fukushima Daiichi nuclear power facility that's been a conduit for highly radioactive water leaking into the Pacific Ocean, a utility company official said.
http://edition.cnn.com/2011/WORLD/asiapcf/04/03/japan.nuclear.reactors/
:waitasec:
Sounds like a cob job.
Chemical, sawdust, newspaper mix used to plug leak at nuclear plant
Tokyo (CNN) -- Workers on Sunday poured a chemical compound mixed with sawdust and newspaper into a crack at Japan's Fukushima Daiichi nuclear power facility that's been a conduit for highly radioactive water leaking into the Pacific Ocean, a utility company official said.
http://edition.cnn.com/2011/WORLD/asiapcf/04/03/japan.nuclear.reactors/
:waitasec:
I don't know what that is-- but let me guess: an awkward attempt at fixing something?
Chemical, sawdust, newspaper mix used to plug leak at nuclear plant
Tokyo (CNN) -- Workers on Sunday poured a chemical compound mixed with sawdust and newspaper into a crack at Japan's Fukushima Daiichi nuclear power facility that's been a conduit for highly radioactive water leaking into the Pacific Ocean, a utility company official said.
http://edition.cnn.com/2011/WORLD/asiapcf/04/03/japan.nuclear.reactors/
:waitasec:
Eighty bags of a water-gel mix made by the Tokyo-based IB Daiwa company will be used in the operation. Each one contains 100 grams of material that includes a special polymer. A Tokyo Electric official said the substance should expand to several thousand times its size as it sticks, ideally, to plug the leak.
http://english.kyodonews.jp/news/2011/04/82882.html
Workers tried Sunday to block the leakage of highly radioactive water into the sea from the crisis-hit Fukushima Daiichi nuclear plant by injecting polymeric water absorbent that can soak up 50 times its volume, but the water flow remains unaffected, the government's nuclear safety agency said.
However, those materials injected at a point 23 meters away from the seaside pit have not been sucked into the water flow, leaving no impact on the rate of leakage, said Hidehiko Nishiyama, a spokesman for the governmental Nuclear and Industrial Safety Agency.
Lots more on their plans to combat leaks at link above.
How do they get bridges and overpasses to whose "legs" are under water to harden....
Isn't that cement.. sure looks like it here locally.. we have a pretty large lake that has the bracing legs of an overpass in it.