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

○Information

○Measurement value list ： 2026/10/01(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	3.6	west	1.4
00:10	3.5	west	1.5
00:20	3.6	west	1.1
00:30	3.7	west	1.1
00:40	3.7	west	0.7
00:50	3.5	-	CALM
01:00	3.5	-	CALM
01:10	3.5	-	CALM
01:20	3.6	-	CALM
01:30	3.4	-	CALM
01:40	3.6	-	CALM
01:50	3.5	west-southwest	0.7
02:00	3.5	west	1.1
02:10	3.5	west-northwest	2.1
02:20	3.5	west-northwest	1.4
02:30	3.5	northwest	1.5
02:40	3.6	west-northwest	1.1
02:50	3.6	west	0.7
03:00	3.5	west	1.0
03:10	3.6	west	0.8
03:20	3.4	west-northwest	0.8
03:30	3.7	northwest	1.0
03:40	3.5	northwest	1.0
03:50	3.4	northwest	1.3
04:00	3.6	west-northwest	1.4
04:10	3.6	north-northwest	1.6
04:20	3.7	north-northwest	0.9
04:30	3.5	northwest	0.9
04:40	3.5	north-northeast	1.6
04:50	3.6	north	1.4
05:00	3.6	northwest	1.5
05:10	3.6	west-northwest	1.3
05:20	3.5	north-northwest	2.4
05:30	3.7	north-northwest	2.6
05:40	3.5	north-northwest	3.3
05:50	3.6	north-northwest	3.3
06:00	3.5	north-northwest	4.8
06:10	3.6	north-northwest	4.5
06:20	3.5	north	4.9
06:30	3.5	north-northwest	4.9
06:40	3.5	north-northwest	4.9
06:50	3.5	north-northwest	5.8
07:00	3.7	north-northwest	5.7
07:10	3.7	north-northwest	5.2
07:20	3.7	north-northwest	4.6
07:30	3.5	north-northwest	4.3
07:40	3.7	north-northwest	4.9
07:50	3.6	north-northwest	5.3
08:00	3.7	north	5.9
08:10	3.7	north	5.9
08:20	3.7	north	5.2
08:30	3.7	-	-
08:40	3.7	-	-
08:50	3.5	-	-
09:00	3.4	-	-
09:10	3.5	-	-
09:20	3.6	-	-
09:30	3.5	-	-
09:40	3.8	-	-
09:50	3.5	-	-
10:00	3.6	-	-
10:10	3.7	-	-
10:20	3.3	-	-
10:30	3.6	-	-
10:40	3.5	-	-
10:50	3.6	-	-
11:00	3.7	-	-
11:10	3.6	-	-
11:20	3.7	-	-
11:30	3.6	-	-
11:40	3.6	-	-
11:50	3.5	-	-
12:00	3.5	-	-
12:10	3.5	-	-
12:20	3.6	-	-
12:30	3.5	-	-
12:40	3.4	-	-
12:50	3.7	-	-
13:00	3.6	-	-
13:10	3.7	-	-
13:20	3.5	-	-
13:30	3.4	north-northeast	3.8
13:40	3.8	north-northeast	3.7
13:50	3.4	north-northeast	3.2
14:00	3.5	north-northeast	3.6
14:10	3.6	north-northeast	4.8
14:20	3.6	north-northeast	4.6
14:30	3.6	north-northeast	4.2
14:40	3.4	north-northeast	4.2
14:50	3.7	north-northeast	4.8
15:00	3.5	north-northeast	4.2
15:10	3.8	north	4.0
15:20	3.7	north	4.0
15:30	3.6	north-northeast	3.5
15:40	3.6	north-northeast	3.0
15:50	3.5	north	3.4
16:00	3.6	north-northwest	4.0
16:10	3.6	north	4.2
16:20	3.5	north	3.6
16:30	3.6	north	3.9
16:40	3.5	north	2.9
16:50	3.6	north	4.4
17:00	3.6	north-northwest	3.8
17:10	3.8	north-northwest	3.2
17:20	3.6	north-northwest	3.1
17:30	3.4	north-northwest	1.9
17:40	3.6	north-northwest	2.1
17:50	3.7	north-northwest	1.9
18:00	3.6	north-northwest	3.7
18:10	3.4	north-northwest	4.6
18:20	3.7	north	4.6
18:30	3.5	north-northwest	4.4
18:40	3.6	north-northwest	3.8
18:50	3.6	north-northwest	2.8
19:00	3.8	west-northwest	2.7
19:10	3.6	west-northwest	2.8
19:20	3.6	west-northwest	3.4
19:30	3.5	northwest	2.9
19:40	3.7	west-northwest	2.0
19:50	3.5	northwest	1.7
20:00	3.5	west-northwest	1.7
20:10	3.6	north	1.2
20:20	3.7	north-northeast	2.1
20:30	3.5	north	2.7
20:40	3.6	north	1.6
20:50	3.5	north-northwest	1.2
21:00	3.5	north-northwest	1.9
21:10	3.6	north	3.1
21:20	3.6	north	2.5
21:30	3.5	north	1.3
21:40	3.5	north	0.6
21:50	3.6	north-northwest	0.7
22:00	3.6	north-northwest	0.9
22:10	3.6	north-northwest	0.8
22:20	3.3	northwest	1.0
22:30	3.7	north-northwest	0.6
22:40	3.6	north-northwest	0.8
22:50	3.6	northwest	0.8
23:00	3.6	west-northwest	1.6
23:10	3.5	north-northwest	0.8
23:20	3.6	northwest	0.7
23:30	3.6	north-northeast	0.8
23:40	3.5	northeast	1.1
23:50	3.4	north	0.7