‘Hot spots’ evacuation mulled via The Japan Times

The government is considering expanding the evacuation area in Fukushima Prefecture to include other areas with high levels of radiation as a result of the nuclear crisis at the Fukushima No. 1 power plant, officials said.

The government will be discussing with the municipal governments of these hot spots suffering from radiation exposure that would exceed 20 millisieverts in the course of a year.

A hot spot refers to an area with high levels of radiation following rain or as a result of landscape or wind conditions that affect the direction in which radioactive materials travel after being released into the air. Normally, radiation spreads concentrically, but conditions sometimes dictate that radioactive materials spread randomly and accumulate in various spots.

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