| Transport of Weapons
Plutonium Fuel by Air
Statements by Transport Canada, the Atomic Energy Control Board, the U.S. Department of Energy and others |
| 1. STATEMENTS RULING OUT TRANSPORT OF PLUTONIUM FUEL (MOX) BY AIR |
| Statement
I.1 (Comment) ìThe Government could change air regulations. Could fly over less populated areas.î I.1 (Transport Canada Response) ìNot until there were a container deemed safe enough to survive all credible airplane accidents.î I.2 (Comment) ìNotes that the United States do not want to fly the shipment.î I.2 (Transport Canada Response) ìIt is
presently against both Canadian and United States law to fly the MOX test
samples.î
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Source
Transport Canada Review of Two Emergency Response Assistance Plans Proposed by the Atomic Energy of Canada Limited for the Importation of up to Six Shipments of Test Samples of MOX Fuel, Transport Canada, Safety and Security, Dangerous Goods, November 4, 1999 Summary of Main Concerns/ Comments, page 46
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| Statement
"The fuel test elements will be transported
directly by truck from Los Alamos National Laboratory to Chalk River Laboratories
without additional handling at the border crossing. The same transport
will be used throughout."
|
Source
Atomic Energy Control Board,
"Canadian Regulations Regarding MOX Parallex Tests and Possible Use of
MOX Fuel in Canadian Power Reactors", Nov. 17, 1997, page 2.,
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|
| Statement
"Federal regulations under 10 CFR 71.88 (Air Transport of Plutonium) explicitly prohibit the transportation of plutonium by air or the delivery to a carrier for air transport unless the plutonium is 1) in a medical device, 2) in a form with a specific activity no greater than 0.002 uCi/g, 3) shipped in a single package with no more than a specified quantity, and 4) shipped in a specifically authorized NRC-package with a Certificate of Compliance. Plutonium is a component of MOX fuel. ìThe restrictions imposed for transportation
of plutonium by air prohibits this alternative for shipment of the MOX
fuel quantities needed for the Parallex Project. In addition, air transport
is considered to be more hazardous than ground transport due to the potential
for greater distribution of radioactive materials in the event of a major
air accident. This alternative was dismissed from further analysis."
|
Source
US Department of Energy, Office of Fissile Materials Disposition, DOE/EA-1216 Environmental Assessment for the Parallex Project Fuel Manufacture and Shipment, Los Alamos National Laboratory Los Alamos, New Mexico, January, 1999, Washington, DC, Page 17
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| Statement
"Air transport, rail, and highway transport
are all possible modes of shipping the LANL MOX fuel to CRL. However, evaluations
done for the USDOE [3] eliminated both air transport and rail options from
further consideration. Accordingly, highway transport was the only mode
considered in the current Canadian evaluation."
|
Source
AECL, Canadian Transportation Plan for the PARALLEX Project-Los Alamos to Chalk River Shipment, 100-37000-TD-003, Revision 0, 1999 August, Page 10 of 26 |
| 2. THE CONSEQUENCES OF A SEVERE ACCIDENT INVOLVING PLUTONIUM FUEL |
| Statement
ìHow much plutonium, contained in so-called "low dispersible" MOX fuel, could be released in the event of a high-velocity air crash which the shipping cask would not be capable of surviving? Impact studies of uranium fuel pellets indicate that in the relevant range of impact energies (e.g. speeds of 90-130 m/s), roughly 1-10 joules per gram of material, from 0.1 - 1 percent of the fuel will be released in the form of particles less than ten microns in diameter, which can be easily inhaled and retained deep in the lung.î ìA rapid release of one kilogram of plutonium
at ground level in dispersible, inhalable form would cause a public health
emergency of the first magnitude. Plutonium air concentrations could be
on the order of hundreds of micrograms per cubic meter of air at one kilometer
from the release site. Individuals breathing this air would inhale enough
plutonium to cause cancer with certainty within minutes. In the worst case,
a crash in a densely populated area could cause tens of thousands of latent
cancers."
|
Source
Edwin S. Lyman, PhD, Nuclear
Control Institute, excerpt from: "Technical Backgrounder: ìPlutonium Air
Shipments", September 4, 1996
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|
| Statement
ìPlutonium is an alpha-emitting transuranic element. Of the possible routes of entry into the body, the most common and most dangerous is through inhalation. In addition to irradiating lung tissue, plutonium is gradually transported to other organs, in particular, liver and bone. Once an alpha-emitter is inside the body, its radiation can cause genetic mutations and cancer with greater potency than gamma or beta radiation of the same energy. ... Experiments with beagle dogs suggest that about 27 millionths of a gram of insoluble plutonium would be sufficient to cause lung cancer in an adult human being with virtual certainty, with significant risks probably associated with far lower doses.î Note: 100 million micrograms is equivalent
to 100 grams.
|
Source
International Physicians
for the Prevention of Nuclear War, Institute for Energy and Environmental
Research, Plutonium, Deadly Gold of the Nuclear Age, International
Physicians Press, Cambridge, Mass., 1992, page 148
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| Statement
"A number of mechanisms exist which could result in a dispersal of plutonium from unirradiated MOX fuel rods in the event of a severe transport accident. Substantial releases could occur if the fuel rods were subjected to a high-velocity impact which breached the cladding, followed by a fire of moderate temperature (as low as 500°C) of several hours' duration. Exposure of the fuel pellets at this temperature to oxygen flowing through the breach would cause (disintegration into small particles)... A large fraction of these particles would be small enough to be easily dispersed in aerosol form by the flames of the fire.î ìFuel melting, although less likely, cannot
be excluded. ... Plutonium dioxide has a lower melting point than uranium
dioxide and, if it is not uniformly distributed in the MOX fuel, it is
possible that localized melting of MOX fuel can occur at temperatures hundreds
of degrees lower, which would be in the range of temperatures encountered
in aviation fuel pool fires."
|
Source
Edwin S. Lyman, Ph.D Nuclear
Control Institute, Behavior of Mixed-Oxide Fuel Under Transport Accident
Conditions", September 21, 1995
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| 3. THE USE OF A ìTYPE Bî CONTAINER TO TRANSPORT PLUTONIUM FUEL BY AIR |
| Statement
"The shipment classification for the MOX
pellets will be Type B(U)F. The shipping Package will be a Type B(U)F,
specifically an "Atomic Energy of Canada Limited Model 4H Enriched Fuel
Bundle Shipping Package""
|
Source
AECL, Canadian Transportation
Plan for the PARALLEX Project-Los Alamos to Chalk River Shipment, 100-37000-TD-003,
Rev. 0, 1999 August, Page 8 of 26
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| Statement
ìType B casks only have to survive an impact speed of 13.2 meters/second (30 mph) and a 30-minute, 800 degrees C. fire.î ìWhile Type C standards are more stringent than Type B standards, they are not stringent enough to guarantee that air transport of radioactive material will be acceptably safe.î ìType C casks will be designed to survive an impact of 90 meters/second (203 mph) on an ìunyieldingî surface and a 60-minute fire.î ìIn establishing its new standards, the
IAEA (International Atomic Energy Agency) has ignored the criticism of
professional aviation organizations. The Dangerous Goods Panel of the International
Civil Aviation Organization regards the Type C impact speed, fire temperature
and lack of sequencing of impact and fire tests as insufficiently severe.î
|
Source
The Facts About Air Transport
of Mixed-Oxide Fuel, Nuclear Control Institute, June 20, 1997
see also: "Status Report on Air Shipments
of Plutonium" by Sharon Tanzer, updated: August 28, 1996
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| Statement
ìU.S. law bars shipments by air of plutonium until the Nuclear Regulatory Commission licenses a container that ìwill not rupture under crash and blast-testing equivalent to the crash and explosion of a high-flying aircraft.î |
Source
The Facts About Air Transport
of Mixed-Oxide Fuel, Nuclear Control Institute, June 20, 1997
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Campaign for Nuclear Phaseout
February 2000