Radiation Dose measured at Monitoring Post of Fukushima Daini Nuclear Power Station

The following is the radiation doses of the air measured by the monitoring posts (MP1-7) on the premises of Fukushima Daini Nuclear Power Station.

Monitoring points

Expansion

Radiation dose

Expansion

※There are some cases that wind direction and speed at the exhaust stacks cannot be measured properly due to storm.

○Announcement

*The data taken from 00:00～23:50 will be posted on our homepage at 00:10 next day as "The past measurement results (from October 17, 2012) *Data may be missing due to equipment failure, cleaning, or regular inspections.

◆Past measurement result（After October 17, 2012）

◆Past measurement result（Before October 16, 2012）

*Relationship between weather and radiation
Radiation dose in the air varies depending on the weather.Generally, radiation dose increases when it rains due to natural radioactive materials falling onto the ground surface.On the other hand, radiation dose decreases in locations where puddles (due to rainfall) and accumulated snow are present as radiation from the ground is blocked by water and snow.