posted on Jun, 30 2011 @ 11:46 AM
I may as well post here too.
I watch Breaking Alterantive News,
Fragile Earth, Crisis in
forums and occasionally the front page for new threads. Never knew the firehose existed, I suppose I haven't crawled around te site enough
There's just SO much going on in the few forums I subscribe to that I can't really spare a whole lot of attention for everything. Between family, work
and this there's only so much one person can accomplish.
I do try to add material that is substantive and relevant to the topic at hand, so in that vein I present to you this excerpt from post I made
Granted, rain is not something you will be breathing in, but the Cs will be deposited in the soil and can easily be kicked up as dust or otherwise
make it's way into the food chain through normal biological processes. Elsewhere we find this:
Radiation levels in the US have declined, according
to the EPA, but the agency has not released data on samples taken after April 30, making the results nearly two months old, according to data sets
made public by the agency. The EPA typically releases test results two to four weeks after a sample is taken, and the EPA has not released new data on
milk since May 24. On June 1, the EPA reported that the radionuclide cesium-137 was detected in one sample of drinking water, and two weeks later the
same round of samples were clear of radiation.
The EPA claims that the levels of radiation it did detect in recent months were not high
enough to raise public health concerns. But how high do radiation levels have to be before the government takes action? For food products like milk,
the EPA relies on Derived Intervention Levels (DIL) set by the Food and Drug Administration (FDA). DILs provide agencies with guidelines - not
mandates - as to when the government should take action to keep food contaminated by radioactive material out of the hands of consumers. A DIL "does
not define a safe or unsafe level of exposure, but instead a level at which protective measures would be recommended to ensure that no one receives a
significant dose," according to the FDA web site. The DIL for iodine-131, one of the radioactive materials released from Japan, in food products like
milk is set at 170 becquerels per kilogram. That number is 1,500 times higher than another government standard, the Maximum Containment Level for
iodine-131 in drinking water, which is set by the Safe Drinking Water Act.
Specifically for your thread, I have the following charts from the site linked to in
the post just quoted:
Along with this:
It was about this time that the EPA stopped monitoring isotopes from Fukushima Daiichi.
The numbers from HI are, as expected, much higher than the contiguous states, but look at the PRECIPITATION numbers!
Guess where all of the Cs is going?
Caesium-134 has a half-life of 2.0652 years. It is produced both directly (at a very small yield because 134Xe is stable) as a fission product and
via neutron capture from nonradioactive Cs-133 (neutron capture cross section 29 barns), which is a common fission product. Caesium 134 is not
produced via beta decay of other fission product nuclides of mass 134 since beta decay stops at stable 134Xe. It is also not produced by nuclear
weapons because 133Cs is created by beta decay of original fission products only long after the nuclear explosion is over.
The combined yield of 133Cs and 134Cs is given as 6.7896%. The proportion between the two will change with continued neutron irradiation. 134Cs also
captures neutrons with a cross section of 140 barns, becoming long-lived radioactive 135Cs.
137Cs with a half-life of 30.17 years is one of the two principal medium-lived fission products, along with 90Sr, which are responsible for most
of the radioactivity of spent nuclear fuel after several years of cooling, up to several hundred years after use. It constitutes most of the
radioactivity still left from the Chernobyl accident. 137Cs beta decays to barium-137m (a short-lived nuclear isomer) then to nonradioactive
barium-137, and is also a strong emitter of gamma radiation. 137Cs has a very low rate of neutron capture and cannot be feasibly disposed of in this
way, but must be allowed to decay. 137Cs has been used as a tracer in hydrologic studies, analogous to the use of 3H.
Look at CA, and ID.
Guess what Idaho is famous for?
Gross state product for 2004 was US$43.6 billion. The per capita income for 2004 was US$26,881. Idaho is an important agricultural state,
producing nearly one-third of the potatoes grown in the United States. All three varieties of wheat, Dark Northern Spring, Hard Red and Soft White are
grown in the state. Nez Perce County is considered a premier Soft White growing locale.
Guess I'll be taking an extra helping of cesium with my mashed potatoes for the next few hundred years, eh?
edit on 30-6-2011 by jadedANDcynical because: Fixed link