Japan Earthquake News

[FireDrgn]

You saying per year ..rolex,s postbsays per hour.  So does that make 400 uSv. An hr 8760 uSv a year ?

[Lepape2]

"French nuclear agency now rates Japan accident at 6"

http://www.reuters.com/article/2011/03/15/japan-quake-nuclear-france-idUSLDE72E2M920110315

[Gh0stFT]

You saying per year ..rolex,s postbsays per hour.  So does that make 400 uSv. An hr 8760 uSv a year ?

looks like your right, i used smoot's list and it shows 400 uSv/per hour would be similar
as smoking 1.8 packs/day for a whole year (365days). Dont know how much Bananas tho.

am i wrong?

i was wrong, looks like it would be closer to 1000 packs/day
not a good comparison.

[warhed]

I'll leave the conversions to someone else but, for sake of comparison, the average person receives about 350 millirem a year.  During a refueling outage (highest doses happen during these) at a BWR (higher doses received than PWRs), I received around 1500 millirem total body dose.  That included performing extended work underneath the reactor vessel, and assisting in a rescue of a fallen, injured contractor who was unconcious and in a very hard to reach area near the reactor, that took a long time to get him out.  Depending on the work, an average worker could expect to see 100 to 1000 millirem yearly at a plant. 

[moot]

You realize I will not eat a banana the same way ever again... do YOU?   

Pretty sure there's worse foods than bananas.. I won't spoil which ones they are

FireDrgn if for some reason you stood there for a year then yeah.  Except Rolex said mSv, not uSv.  That's 1000x times more. A year's 8760 hours so that's about 3 and a half thousand Sv IOW you'd be long dead before that much exposure. 

Cancer risk is wrong on this chart (it doesnt start that early) but it should be good enough for ballpark reference.  I'm not sure myself how all the factors involved work.. ie how this chart varies depending on how quickly (or slowly) you're irradiated to those amounts.

[Muzzy]

Now another fire at reactor 4.

 

[warhed]

That would be acute doses/exposures in that chart, moot

[moot]

I mean how quick the symptoms drop off as you lengthen the exposure time for those cumulative doses.  And/or which symptoms would diminish more or less quickly with increasing slowness of exposure.

[Rolex]

The problems at the plant are:

1. There is no electric power to do anything.
2. The stored fuel rod pools are the main problem. They are located above the reactors in the same buildings and they cannot keep the spent fuel rods covered. They appear to be the radioactive source, not the reactors. They have no way to pump water (seawater - the only source now) up to them without power. They were using firetrucks, but they have been damaged in the hydrogen explosions.
3. There are 6 reactors, all with the same pools and problems. Every time one gets under control, another loses water and it's like juggling 6 hot potatoes.

The radiation from the rods doesn't contain I-131 (Iodine-131), so I-127 (Iodine-127) has no effect. It's meaningless.

The radiation levels outside the immediate area of the plant is in the scale of 0.8 µSv. That is 8/10,000,000th of a Sv. It has no effect on anything.

Japan has bigger problems than that. The trucks aren't running, the grocery stores throughout the entire Tokyo (200 miles and 40 million people south) are running out of food, there is no gasoline (we don't know why) and stores are only open for a few hours because of rolling blackouts from power shortages. Some areas only have 3-4 hours of power per day. Factories and other businesses are all closed.

[moot]

Rolex isn't there some equipment that other countries could provide by now (days into this) that would make a useful difference in dealing with the Fukushima reactors?

[Rolex]

That's a question on the minds of many. Generators and diesel airlifted by helicopter to, then off the USS Ronald Reagan to an area near the plant might help. But, they ran away.

There are roughly half a million people in tents and makeshift places that need generators and fuel, food and water. It's cold, raining and snowing in many of the areas. Only a guess, but that might be the priority of the Japanese military and disaster teams. No one off the plant site is in any danger from the minute amount of radioactivity.

[F22RaptorDude]

That's a question on the minds of many. Generators and diesel airlifted by helicopter to, then off the USS Ronald Reagan to an area near the plant might help. But, they ran away.

There are roughly half a million people in tents and makeshift places that need generators and fuel, food and water. It's cold, raining and snowing in many of the areas. Only a guess, but that might be the priority of the Japanese military and disaster teams. No one off the plant site is in any danger from the minute amount of radioactivity.

Isn't the US retreating cause the radiation cloud reached the Reagan and 2 crew members tested postie for radiation?

[Rolex]

How many times do I have to say this? There amount of radioactivity was so small, it was insignificant.

I hope they build a monument to the guys at the plant who have worked tirelessly throughout this.

[Megalodon]

The people Tepco are liars and those 50 people just bit the bullet. I wouldn't believe a word you hear Rolex when it comes to amounts. I would watch the wind and go get a suit.

When the water fails, cause they cant keep the pressure, they will pack the core with sand and concrete well after it melts.

[Rolex]

It's the spent fuel, not the reactors.

Water failed 5 days ago.

You think there is a conspiracy to coordinate and manipulate the real-time radiation readings from multiple universities and a variety of sources throughout eastern Japan? How do they do that on TV live? 

Get a suit? I'm lucky to have water, some food and electricity more that others.