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

○Information

○Measurement value list ： 2026/09/26(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	north-northwest	1.2
00:10	3.5	north-northwest	1.4
00:20	3.7	north-northwest	2.1
00:30	3.6	north-northwest	2.0
00:40	3.5	north-northwest	2.0
00:50	3.5	north-northwest	1.5
01:00	3.5	north-northwest	1.8
01:10	3.6	north-northwest	2.0
01:20	3.7	north	2.3
01:30	3.6	north-northwest	2.6
01:40	3.5	north-northwest	2.4
01:50	3.6	north-northwest	1.7
02:00	3.5	north	1.6
02:10	3.6	north-northwest	2.2
02:20	3.5	north-northwest	2.7
02:30	3.5	north-northwest	3.0
02:40	3.6	north-northwest	2.8
02:50	3.6	north-northwest	2.8
03:00	3.5	north-northwest	3.0
03:10	3.6	north-northwest	3.2
03:20	3.6	north-northwest	3.1
03:30	3.6	north-northwest	2.9
03:40	3.5	north-northwest	2.8
03:50	3.5	north-northwest	2.9
04:00	3.6	northwest	3.4
04:10	3.6	northwest	4.0
04:20	3.5	northwest	3.4
04:30	3.5	west-northwest	2.9
04:40	3.5	north-northwest	2.8
04:50	3.6	west-northwest	3.8
05:00	3.5	west-northwest	3.2
05:10	3.5	west-northwest	2.3
05:20	3.9	northwest	3.0
05:30	3.5	northwest	3.2
05:40	3.5	-	-
05:50	3.6	northeast	4.9
06:00	3.6	-	CALM
06:10	3.6	west-northwest	1.0
06:20	3.6	west-northwest	1.3
06:30	3.6	north-northwest	3.1
06:40	3.5	north	3.6
06:50	3.6	north	1.9
07:00	3.6	north-northwest	1.6
07:10	3.7	north	2.4
07:20	3.5	north	3.5
07:30	3.4	north	3.0
07:40	3.5	north	4.0
07:50	3.5	-	-
08:00	3.7	north	6.3
08:10	3.6	north	5.8
08:20	3.4	north-northeast	5.4
08:30	3.5	north-northeast	4.8
08:40	3.6	north-northeast	4.0
08:50	3.4	north	2.1
09:00	3.6	north-northwest	1.3
09:10	3.5	north-northwest	1.2
09:20	3.4	west-northwest	1.4
09:30	3.6	west	0.7
09:40	3.5	-	CALM
09:50	3.7	north-northeast	0.8
10:00	3.6	-	CALM
10:10	3.8	northwest	0.6
10:20	3.5	north-northwest	0.6
10:30	3.6	northwest	0.8
10:40	3.4	north-northwest	1.0
10:50	3.7	northwest	0.7
11:00	3.5	north-northwest	0.7
11:10	3.6	north-northwest	0.6
11:20	3.6	northwest	1.0
11:30	3.5	west-northwest	1.3
11:40	3.5	northwest	0.8
11:50	3.5	north-northwest	0.6
12:00	3.8	north-northwest	1.1
12:10	3.5	north-northwest	1.0
12:20	3.4	north	1.3
12:30	3.4	north	1.6
12:40	3.5	east-northeast	0.7
12:50	3.7	-	CALM
13:00	3.6	east-northeast	0.7
13:10	3.4	east-northeast	0.6
13:20	3.7	east-southeast	0.8
13:30	3.5	east-southeast	0.7
13:40	3.5	-	CALM
13:50	3.6	east-southeast	0.8
14:00	3.4	east-southeast	0.8
14:10	3.6	east-northeast	0.7
14:20	3.6	-	CALM
14:30	3.7	east-northeast	0.6
14:40	3.6	east-northeast	0.6
14:50	3.7	-	CALM
15:00	3.6	-	CALM
15:10	3.7	south	1.0
15:20	3.6	-	CALM
15:30	3.6	-	CALM
15:40	3.6	-	CALM
15:50	3.7	south	0.8
16:00	3.7	-	CALM
16:10	3.6	-	CALM
16:20	3.5	northwest	0.6
16:30	3.5	northwest	0.8
16:40	3.5	west	0.7
16:50	3.7	northwest	1.0
17:00	3.5	northwest	1.0
17:10	3.7	northwest	0.9
17:20	3.6	northwest	1.6
17:30	3.7	northwest	1.1
17:40	3.6	northwest	1.5
17:50	3.5	northwest	1.7
18:00	3.7	northwest	1.9
18:10	3.5	northwest	1.8
18:20	3.5	northwest	2.3
18:30	3.6	northwest	3.0
18:40	3.8	northwest	2.6
18:50	3.6	northwest	2.5
19:00	3.6	northwest	2.7
19:10	3.5	northwest	2.7
19:20	3.5	northwest	3.2
19:30	3.6	northwest	3.3
19:40	3.5	northwest	3.6
19:50	3.6	northwest	3.5
20:00	3.5	northwest	3.6
20:10	3.6	northwest	3.8
20:20	3.5	northwest	4.7
20:30	3.7	northwest	4.1
20:40	3.5	northwest	4.6
20:50	3.4	northwest	3.9
21:00	3.6	northwest	3.9
21:10	3.7	northwest	4.0
21:20	3.8	northwest	3.5
21:30	3.6	northwest	4.0
21:40	3.6	northwest	4.3
21:50	3.5	northwest	4.6
22:00	3.8	northwest	4.4
22:10	3.4	northwest	4.9
22:20	3.7	northwest	4.9
22:30	3.5	northwest	4.5
22:40	3.6	northwest	4.3
22:50	3.5	northwest	4.6
23:00	3.6	northwest	4.5
23:10	3.5	northwest	5.0
23:20	3.6	northwest	4.9
23:30	3.4	northwest	5.4
23:40	3.5	northwest	4.9
23:50	3.5	northwest	5.5