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Winds at Japan Power Plants Should Send Radiation out to Sea

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Mar 13, 2011; 12:08 PM ET

Three reactor units at the Onagawa plant are being watched and controlled for radiation leaks and possible meltdown.

The wind direction may impact where the radiation goes both at a local level and even across the globe. The wind direction at both of these locations are similar since the Onagawa power plant is located just to the northeast of Fukushima power plant.

"The exact direction of the winds would have to be known at the time of the release of a large amount of radiation to understand exactly where the radiation would go," according to Expert Senior Global Meteorologist Jim Andrews.

It is unknown when a large release of radiation would occur, if at all, at this point.

"You can calculate how long the release of a radiation would take to cross the Pacific from Japan to the U.S. by choosing different speeds that the radioactive particles might be moving and using the direct distance between given locations- say Sendai, Japan, and Seattle, Wash.," Andrews added.

Calculated time for radioactive particles to cross the Pacific from the power plants in Japan to big West Coast cities if the particles take a direct path and move at a speed of 20 mph:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cities Approx. Distance (miles) Approx. Time to Cross Pacific (days)
Anchorage 3,457 7
Honolulu 3,847 8
Seattle 4,792 10
Los Angeles 5,477 11

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