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

○Information

○Measurement value list ： 2026/10/25(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	3.5	south	4.0
00:10	3.5	south	4.6
00:20	3.5	south	4.4
00:30	3.5	south	3.9
00:40	3.4	south-southwest	4.2
00:50	3.4	south	3.9
01:00	3.5	south	4.2
01:10	3.6	south	3.5
01:20	3.6	south	3.3
01:30	3.5	south	2.6
01:40	3.4	south-southwest	2.1
01:50	3.6	south	2.8
02:00	3.4	south	3.2
02:10	3.5	south	3.1
02:20	3.5	south-southwest	1.5
02:30	3.5	south	1.7
02:40	3.5	south-southeast	2.1
02:50	3.4	south	0.8
03:00	3.5	-	CALM
03:10	3.5	northwest	1.6
03:20	3.5	northwest	1.6
03:30	3.6	north-northwest	1.4
03:40	3.3	north-northwest	1.7
03:50	3.4	north-northwest	2.1
04:00	3.5	northwest	0.9
04:10	3.4	north-northwest	1.0
04:20	3.6	-	CALM
04:30	3.5	northwest	1.3
04:40	3.5	northwest	0.9
04:50	3.5	north-northwest	1.6
05:00	3.5	northwest	2.2
05:10	3.5	northwest	2.9
05:20	3.5	northwest	4.0
05:30	3.5	northwest	3.8
05:40	3.7	north-northwest	2.9
05:50	3.5	north-northwest	2.5
06:00	3.4	north	2.4
06:10	3.5	northeast	0.9
06:20	3.5	north-northeast	1.6
06:30	3.4	north-northeast	2.0
06:40	3.6	north	2.0
06:50	3.5	north	2.7
07:00	3.6	north-northwest	1.9
07:10	3.6	north-northwest	1.8
07:20	3.4	north-northwest	1.8
07:30	3.4	north	2.2
07:40	3.4	north-northeast	2.6
07:50	3.5	north	2.7
08:00	3.4	north	3.3
08:10	3.6	north	2.8
08:20	3.6	north	2.3
08:30	3.6	north	1.6
08:40	3.6	north	1.7
08:50	3.3	north-northwest	1.8
09:00	3.6	north-northwest	1.9
09:10	3.5	north-northwest	1.2
09:20	3.5	north	1.2
09:30	3.4	north	0.9
09:40	3.5	north	0.9
09:50	3.8	north	0.9
10:00	3.4	north-northeast	0.9
10:10	3.5	northeast	0.8
10:20	3.6	-	CALM
10:30	3.5	-	CALM
10:40	3.5	north-northwest	0.9
10:50	3.6	north	1.5
11:00	3.5	north-northwest	1.1
11:10	3.7	north-northwest	1.0
11:20	3.5	north-northwest	1.4
11:30	3.5	north-northwest	1.4
11:40	3.4	north-northwest	1.1
11:50	3.6	north	2.9
12:00	3.5	north-northwest	1.4
12:10	3.6	north	1.1
12:20	3.5	north-northwest	0.8
12:30	3.5	north	1.2
12:40	3.5	-	CALM
12:50	3.6	north-northwest	0.7
13:00	3.5	west-northwest	0.6
13:10	3.6	northwest	0.7
13:20	3.7	-	CALM
13:30	3.6	north-northwest	1.8
13:40	3.5	north-northwest	3.1
13:50	3.5	north-northwest	1.8
14:00	3.7	northwest	1.0
14:10	3.5	west	1.1
14:20	3.5	northwest	0.9
14:30	3.4	north	1.5
14:40	3.5	north	1.4
14:50	3.5	north	1.9
15:00	3.4	north	1.4
15:10	3.4	north	3.1
15:20	3.5	north	3.6
15:30	3.5	north	4.1
15:40	3.4	north-northwest	2.8
15:50	3.5	north-northwest	2.7
16:00	3.6	north-northwest	3.6
16:10	3.5	north-northwest	4.1
16:20	3.5	north-northwest	2.9
16:30	3.6	north-northwest	3.2
16:40	3.6	north-northwest	2.3
16:50	3.6	north-northwest	3.3
17:00	3.4	north-northwest	4.7
17:10	3.5	north-northwest	4.8
17:20	3.5	north-northwest	4.7
17:30	3.5	north-northwest	3.7
17:40	3.4	north-northwest	2.7
17:50	3.6	north-northwest	3.4
18:00	3.6	north-northwest	4.4
18:10	3.4	north-northwest	4.2
18:20	3.4	north	6.0
18:30	3.4	north	5.2
18:40	3.6	north	4.7
18:50	3.5	north-northwest	3.8
19:00	3.6	north-northwest	4.2
19:10	3.6	north-northwest	4.2
19:20	3.5	north-northwest	4.2
19:30	3.5	north-northwest	3.0
19:40	3.7	northwest	2.2
19:50	3.5	north-northwest	2.6
20:00	3.5	north-northwest	2.1
20:10	3.6	north-northwest	1.2
20:20	3.5	north	1.8
20:30	3.5	north	1.3
20:40	3.6	north-northwest	1.9
20:50	3.5	north-northwest	2.8
21:00	3.5	north	3.4
21:10	3.5	north-northwest	2.3
21:20	3.5	north	2.5
21:30	3.4	north	3.9
21:40	3.3	north	2.7
21:50	3.5	north	2.2
22:00	3.6	north	2.0
22:10	3.5	north	2.2
22:20	3.6	north-northwest	1.9
22:30	3.4	northwest	1.9
22:40	3.6	north-northwest	1.5
22:50	3.5	northwest	0.8
23:00	3.4	north-northwest	0.8
23:10	3.5	northwest	0.6
23:20	3.4	northwest	1.1
23:30	3.6	-	CALM
23:40	3.3	north	1.6
23:50	3.5	north-northeast	1.8