Radiation Dose measured at exhaust stack monitor of Fukushima Daiichi Nuclear Power Station

○Information

○Measurement value list ： 2025/12/25(CSV Download)

Stack Unit：cps　Wind Velocity Unit：m/s

※"-": the wind velocity is below 0.5m/s

Time	Unit 5,6 joint stack	Wind Direction	Wind Velocity
00:00	3.7	-	CALM
00:10	3.7	-	CALM
00:20	3.7	-	CALM
00:30	3.7	-	CALM
00:40	3.6	-	CALM
00:50	3.7	-	CALM
01:00	3.6	-	CALM
01:10	3.8	west	1.0
01:20	3.6	west	0.9
01:30	3.7	west	0.8
01:40	3.6	west	0.7
01:50	3.7	northwest	0.7
02:00	3.7	west	1.7
02:10	3.8	west	1.5
02:20	3.6	west-southwest	1.6
02:30	3.6	west-southwest	1.7
02:40	3.6	west	1.7
02:50	3.6	west-northwest	1.6
03:00	3.7	west	2.4
03:10	3.7	west-northwest	1.3
03:20	3.6	west	1.8
03:30	3.6	west-northwest	2.5
03:40	3.8	west-northwest	2.8
03:50	3.7	west	2.8
04:00	3.8	west-southwest	2.8
04:10	3.6	west-northwest	2.0
04:20	3.6	west	1.3
04:30	3.8	north	0.8
04:40	3.6	north-northwest	0.9
04:50	3.8	-	CALM
05:00	3.7	west	1.2
05:10	3.9	west	0.7
05:20	3.7	-	CALM
05:30	3.6	northeast	1.1
05:40	3.6	north	0.7
05:50	3.7	-	CALM
06:00	3.7	-	CALM
06:10	3.4	-	CALM
06:20	3.8	-	CALM
06:30	3.8	west-southwest	0.8
06:40	3.9	west-southwest	0.9
06:50	3.7	west-southwest	1.3
07:00	3.7	northwest	1.3
07:10	3.7	north-northwest	1.2
07:20	3.6	northwest	1.6
07:30	3.7	northwest	1.9
07:40	3.7	west-northwest	1.4
07:50	3.6	west	1.8
08:00	3.6	west-southwest	1.6
08:10	3.7	west	1.7
08:20	3.6	west	2.4
08:30	3.6	west	3.1
08:40	3.7	west	3.4
08:50	3.7	west	3.0
09:00	3.6	west	2.9
09:10	3.6	west	3.2
09:20	3.6	west	3.0
09:30	3.7	northwest	2.8
09:40	3.6	north-northwest	4.3
09:50	3.7	north	3.7
10:00	3.7	north-northwest	3.4
10:10	3.7	north	2.9
10:20	3.8	north	4.1
10:30	3.8	north-northeast	4.0
10:40	3.8	north	3.9
10:50	3.7	north	4.5
11:00	3.7	north-northeast	5.5
11:10	3.6	north	5.4
11:20	3.8	north	2.8
11:30	3.7	north-northwest	3.2
11:40	3.8	north-northwest	3.6
11:50	3.8	north-northwest	3.7
12:00	3.8	northwest	4.0
12:10	3.7	northwest	3.0
12:20	3.7	north-northwest	3.2
12:30	3.9	north-northwest	3.1
12:40	3.7	north-northwest	2.7
12:50	3.6	north-northwest	3.0
13:00	3.6	north-northwest	2.2
13:10	3.7	north-northwest	1.5
13:20	3.5	north-northwest	1.1
13:30	3.6	north-northwest	2.5
13:40	3.6	north-northwest	3.4
13:50	3.7	north-northwest	4.5
14:00	3.6	north-northwest	4.3
14:10	3.6	north-northwest	3.2
14:20	3.8	north-northwest	3.5
14:30	3.8	north-northwest	4.1
14:40	3.7	north-northwest	4.2
14:50	3.7	north	4.3
15:00	3.8	north-northwest	3.5
15:10	3.8	north-northwest	4.6
15:20	3.8	north-northwest	4.6
15:30	3.6	north-northwest	5.3
15:40	3.6	north-northwest	5.8
15:50	3.6	north-northwest	5.4
16:00	3.7	north-northwest	5.7
16:10	3.5	north-northwest	6.4
16:20	3.6	north-northwest	6.1
16:30	3.7	north-northwest	6.1
16:40	3.6	northwest	6.7
16:50	3.7	north-northwest	6.4
17:00	3.7	north-northwest	6.3
17:10	3.7	northwest	6.0
17:20	3.7	north-northwest	6.4
17:30	3.6	north-northwest	6.2
17:40	3.7	north-northwest	5.2
17:50	3.5	north-northwest	5.4
18:00	3.9	north	5.4
18:10	3.6	north-northwest	4.5
18:20	3.8	north-northwest	6.1
18:30	3.7	north-northwest	6.1
18:40	3.8	north-northwest	4.6
18:50	3.8	north-northwest	5.7
19:00	3.7	north-northwest	6.2
19:10	3.6	north	7.0
19:20	3.8	north-northwest	5.0
19:30	3.7	north-northwest	6.1
19:40	3.6	north-northwest	5.9
19:50	3.7	north-northwest	6.4
20:00	3.7	north-northwest	5.6
20:10	3.5	north-northwest	4.8
20:20	3.7	north	6.4
20:30	3.7	north-northwest	4.7
20:40	3.6	north	6.0
20:50	3.6	north-northwest	6.4
21:00	3.6	north-northwest	6.7
21:10	3.6	north-northwest	5.3
21:20	3.7	north-northwest	6.0
21:30	3.5	north-northwest	3.4
21:40	3.8	north-northwest	4.0
21:50	3.9	north-northwest	4.3
22:00	3.7	north-northwest	4.2
22:10	3.8	north	4.9
22:20	3.7	north	3.9
22:30	3.6	north	4.8
22:40	3.6	north-northwest	4.5
22:50	3.6	north-northwest	4.0
23:00	3.8	north-northwest	4.6
23:10	3.8	northwest	6.6
23:20	3.4	northwest	6.0
23:30	3.8	northwest	5.0
23:40	3.9	north	3.4
23:50	3.7	northwest	4.4