The Mistakes of 溫石麟

The Mistakes of 溫石麟

本帖最後由 ICE_AGE 於 19-3-2011 08:31 編輯

Mr. Wan, so called an nuclear expert is in fact a fundamental environmentalist which is full of craps, such as:

Plutonium is 10,000 times more toxic than uranium, which is a classic slip-of-the-tongue comment.

On the contrary, plutonium is considered relatively "safe" to expose to, and turns nasty only when its concentration approach criticality.  The concentration of plutonium in power plant fuel rods is way below criticality.

Hundred and even thousand tons of plutonium is stored in the Fukushima No.3 reactor plant.

This is actually the tonnage of spent fuel and Mr. Wan compared it to weapon-grade plutonium.  The total worldwide stock of weapon-grade plutonium as of 2007 was only 500 tons.

Mr. Wan repeatedly emphasized "explosion" in the program.

The nuclear plant will not explode by design because the concentration and purity of fissile material are too low for that to happen.  The biggest hazard of the reactors are: a) core melt down and container burn-through, leading to environmental release of radioactive materials and b) atmospheric exposure of spent plutonium fuel rods which burn spontaneously.  Again these are very unlikely if the temperature is under control.

Mr. Wan claimed that facing the problem of an inoperative cooling system, shift change of plant workers was the main reason for the escalation of the crisis.

This comment is most irresponsible and I believe Mr. Wan owes the workers, especially to those 50 who stay, an apology.

First of all, how did Mr. Wan know the workers insisted to come off from work?  Did the shift really changed at 5pm Friday, and no decision making personnel reported to duty on Saturday?  Or were those Mr. Wan's imagination?  Please be reminded that their country had just suffered a major earthquake.  Does anyone think they shouldn't go home and check on their families?  I would bet anything if this happened in our great country, the workers would have long gone AWOL.

Secondarily, we all know that power supply to the cooling system was knocked out by the tsunami, which was the main reason for core temperature rise.  The workers shouldn't be blamed for not repairing something that couldn't be repaired.

Mr. Wan put up a deadline of 48 hours, said it was the natural development of things but disregarded all the efforts made on cooling the reactors.

He also dramatized the issue by mentioning that a miracle would be needed to save the day when in fact, all there is needed to do is to restore the power supply to the cooling units.  Simple as that.


He tried to paint a very gloomy picture for the audience by exaggerating the effect of an explosion that might never occur; and by saying that this is only the prelude to a series of environmental catastrophes.

He was only appealing to the emotion and provided no proof to his claims, which was an exemplary style of a fundamental environmentalist.

The plant and operations were linked to atomic bomb program.

The reactors of Fukushima will produce plutonium alright, but the majority of the product is plutonium 240 and 242 which are non-fissile.  A dedicated reactor is required to make plutonium 239 for weapon development.

To hint that the impounded nuclear materials in Malaysian waters has anything to do with Japan at this juncture is preposterous.

3

評分次數

  • y2kcatman

  • JimmyJean

Mr Wan = doomsday expert.
樓主的英文好勁。雖然小弟唔係好明太技術的事情,但會應樓主所言多做一些fact checking before reaching a conclusion.
溫石麟
Crackpot "expert"
Shamelessly playing the role of an expert....
Being an environmentalist is no sin in itself, even the fundamental kind, but he should have profound knowledge to back up his claims ... not to mislead audience.
What would become of us without the help of what doesn't exist?

http://en.wikipedia.org/wiki/Plutonium#Toxicity

Toxicity
Isotopes and compounds of plutonium are dangerous due to their radioactivity. Contamination by plutonium oxide (spontaneously oxidized plutonium) has resulted from a number of military nuclear accidents where nuclear weapons have burned.[85]
The alpha radiation plutonium emits does not penetrate the skin but can irradiate internal organs when plutonium is inhaled or ingested.[32] The skeleton, where plutonium is absorbed by the bone surface, and the liver, where it collects and becomes concentrated, are at risk.[31] Plutonium is not absorbed into the body efficiently when ingested; only 0.04% of plutonium oxide is absorbed after ingestion.[32] What plutonium is absorbed into the body is excreted very slowly, with a biological half-life of 200 years.[86] Plutonium passes only slowly through cell membranes and intestinal boundaries, so absorption by ingestion and incorporation into bone structure proceeds very slowly.[87][88]
Plutonium is more dangerous when inhaled than when ingested. The risk of lung cancer increases once the total dose equivalent of inhaled radiation exceeds 400 mSv.[89] The U.S. Department of Energy estimates that the lifetime cancer risk for inhaling 5,000 plutonium particles, each about 3 microns wide, to be 1% over the background U.S. average.[90] Ingestion or inhalation of large amounts may cause acute radiation poisoning and death; no human is known to have died because of inhaling or ingesting plutonium, and many people have measurable amounts of plutonium in their bodies.[91]
The "hot particle" theory in which a particle of plutonium dust radiates a localized spot of lung tissue has been tested and found false – such particles are more mobile than originally thought and toxicity is not measurably increased due to particulate form.[87]
However, when inhaled, plutonium can pass into the bloodstream. Once in the bloodstream, plutonium moves throughout the body and into the bones, liver, or other body organs. Plutonium that reaches body organs generally stays in the body for decades and continues to expose the surrounding tissue to radiation and thus may cause cancer. [92] "Radiation Protection, Plutonium: What does plutonium do once it gets into the body?". U.S. Environmental Protection Agency.</ref>
Several populations of people who have been exposed to plutonium dust (e.g. people living down-wind of Nevada test sites, Hiroshima survivors, nuclear facility workers, and "terminally ill" patients injected with Pu in 1945–46 to study Pu metabolism) have been carefully followed and analyzed.
These studies generally do not show especially high plutonium toxicity or plutonium-induced cancer results.[87] "There were about 25 workers from Los Alamos National Laboratory who inhaled a considerable amount of plutonium dust during the 1940's; according to the hot-particle theory, each of them has a 99.5% chance of being dead from lung cancer by now, but there has not been a single lung cancer among them."[93][94]
Plutonium has a metallic taste.[95]
用到full of craps來形容溫石麟,是否過火了?
切爾諾貝爾主要的核污染是I-131、Sr-90與Cs-137,Pu-240/Pu-242與之相比,當然是Pu的危害大得多。當年核微塵確實擴散全歐,如果3號反應堆再次發生爆炸,難保鈈微塵不會被帶至半空四周擴散?
http://lousysalesman.blogspot.com/
這個 溫石麟識皮毛扮專家!!!!!!!!!!!
溫石麟誇張失實 信就笨柒
rictwc
無錯, 有常識就知佢亂up!!! 凡事想當然...真係好離譜
感謝樓主理性分析...
技術上既野我無資格話呀溫生既野岩唔岩..
但係有一點...就係工人換班要係下午五點鍾收工呢樣野...真係一聽落去邊覺得有問題...
那怕你好熟核電如何運作....呀溫生又點會咁清楚人地間電廠既工人幾點收工換班?