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

○Information

○Measurement value list ： 2026/09/20(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	north-northwest	2.9
00:10	3.6	north-northwest	3.4
00:20	3.5	north-northwest	2.9
00:30	3.5	north-northwest	3.4
00:40	3.6	north-northwest	3.8
00:50	3.6	north-northwest	3.7
01:00	3.7	north-northwest	3.3
01:10	3.5	north-northwest	3.7
01:20	3.5	north-northwest	3.6
01:30	3.5	north-northwest	3.1
01:40	3.8	northwest	2.6
01:50	3.6	northwest	2.7
02:00	3.4	north-northwest	2.9
02:10	3.7	northwest	3.7
02:20	3.5	north-northwest	3.2
02:30	3.5	north-northwest	3.7
02:40	3.6	north-northwest	3.5
02:50	3.5	northwest	3.1
03:00	3.6	north-northwest	3.3
03:10	3.6	northwest	2.9
03:20	3.4	north-northwest	3.7
03:30	3.4	north-northwest	4.2
03:40	3.5	north-northwest	3.2
03:50	3.5	north-northwest	4.6
04:00	3.6	north-northwest	4.7
04:10	3.4	north-northwest	4.0
04:20	3.5	north-northwest	2.9
04:30	3.6	north-northwest	3.9
04:40	3.7	north-northwest	3.8
04:50	3.5	north-northwest	4.4
05:00	3.5	north-northwest	3.4
05:10	3.6	north-northwest	4.3
05:20	3.4	north-northwest	4.7
05:30	3.6	north-northwest	4.2
05:40	3.7	north-northwest	4.3
05:50	3.6	north-northwest	3.4
06:00	3.5	north-northwest	3.2
06:10	3.6	north-northwest	4.5
06:20	3.5	north-northwest	4.6
06:30	3.5	northwest	2.7
06:40	3.6	northwest	2.4
06:50	3.5	northwest	3.2
07:00	3.5	northwest	3.1
07:10	3.6	northwest	3.2
07:20	3.6	north-northwest	3.6
07:30	3.6	north-northwest	3.9
07:40	3.4	north-northwest	5.0
07:50	3.5	north-northwest	6.0
08:00	3.5	north-northwest	6.2
08:10	3.6	north	4.5
08:20	3.8	north	4.0
08:30	3.5	north	3.5
08:40	3.7	north-northwest	3.9
08:50	3.5	north	4.7
09:00	3.5	north	2.4
09:10	3.6	north	3.4
09:20	3.6	north	3.3
09:30	3.5	north	2.8
09:40	3.5	north	3.4
09:50	3.5	north	2.8
10:00	3.4	north	3.9
10:10	3.6	north	2.5
10:20	3.5	north	3.7
10:30	3.5	north	3.8
10:40	3.6	north	3.4
10:50	3.7	north	3.6
11:00	3.6	north	4.5
11:10	3.4	north	2.9
11:20	3.6	north	3.5
11:30	3.6	north	4.3
11:40	3.4	north	3.4
11:50	3.6	north	3.7
12:00	3.7	north-northeast	3.2
12:10	3.6	north	3.7
12:20	3.6	north	3.5
12:30	3.5	north-northeast	2.6
12:40	3.6	north-northeast	2.7
12:50	3.8	north	4.0
13:00	3.5	north-northeast	3.5
13:10	3.6	north	3.0
13:20	3.4	north	2.8
13:30	3.6	north-northeast	3.4
13:40	3.4	north	3.4
13:50	3.5	north-northeast	2.8
14:00	3.6	north	3.4
14:10	3.7	north	2.3
14:20	3.7	north	2.6
14:30	3.7	north-northeast	2.9
14:40	3.3	north	1.8
14:50	3.7	north-northeast	1.3
15:00	3.5	north-northwest	1.4
15:10	3.6	north-northwest	1.8
15:20	3.5	north	2.8
15:30	3.6	north	2.3
15:40	3.7	north	2.3
15:50	3.5	north-northwest	1.9
16:00	3.6	north-northwest	2.1
16:10	3.5	north	2.2
16:20	3.6	north-northeast	2.4
16:30	3.5	north	2.5
16:40	3.5	north	2.3
16:50	3.6	north-northeast	2.8
17:00	3.5	north	2.3
17:10	3.7	north	1.7
17:20	3.5	north	1.6
17:30	3.6	north	2.2
17:40	3.6	north-northwest	0.9
17:50	3.5	-	CALM
18:00	3.6	west-northwest	0.7
18:10	3.8	-	CALM
18:20	3.6	west-northwest	0.7
18:30	3.5	west-northwest	0.8
18:40	3.7	west-northwest	0.9
18:50	3.6	north	1.9
19:00	3.5	north-northwest	2.6
19:10	3.4	north-northwest	3.7
19:20	3.6	west-northwest	0.6
19:30	3.5	north-northwest	0.6
19:40	3.5	north-northwest	1.9
19:50	3.4	north	1.9
20:00	3.5	north	2.7
20:10	3.5	north	4.3
20:20	3.6	north-northwest	3.9
20:30	3.6	north-northwest	3.2
20:40	3.5	north	2.8
20:50	3.4	north	4.8
21:00	3.6	north	3.8
21:10	3.6	north	3.9
21:20	3.5	north-northwest	3.1
21:30	3.6	north-northwest	2.8
21:40	3.6	north	1.7
21:50	3.6	north	1.5
22:00	3.7	north-northeast	1.8
22:10	3.6	northeast	2.3
22:20	3.5	north-northeast	3.5
22:30	3.5	north	2.0
22:40	3.7	north	2.7
22:50	3.7	north	3.6
23:00	3.7	north	4.0
23:10	3.5	north	3.4
23:20	3.5	north	3.5
23:30	3.5	north	3.8
23:40	3.5	north-northwest	3.3
23:50	3.6	north-northwest	3.6