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

○Information

○Measurement value list ： 2026/09/27(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	northwest	5.0
00:10	3.5	northwest	5.0
00:20	3.6	northwest	5.2
00:30	3.4	northwest	5.5
00:40	3.6	northwest	5.5
00:50	3.6	northwest	5.1
01:00	3.6	northwest	5.0
01:10	3.5	northwest	5.5
01:20	3.6	northwest	6.2
01:30	3.7	northwest	5.9
01:40	3.5	northwest	5.1
01:50	3.4	north-northwest	4.9
02:00	3.6	northwest	5.0
02:10	3.6	northwest	4.2
02:20	3.6	northwest	4.5
02:30	3.5	northwest	4.7
02:40	3.6	northwest	4.4
02:50	3.5	northwest	3.6
03:00	3.6	northwest	4.1
03:10	3.7	north-northwest	4.1
03:20	3.7	north-northwest	5.4
03:30	3.4	northwest	4.8
03:40	3.5	northwest	4.7
03:50	3.6	northwest	4.3
04:00	3.6	northwest	4.4
04:10	3.7	northwest	3.9
04:20	3.6	northwest	3.8
04:30	3.6	northwest	3.5
04:40	3.6	northwest	3.7
04:50	3.5	north-northwest	3.7
05:00	3.5	north-northwest	3.3
05:10	3.7	north-northwest	3.4
05:20	3.6	north-northwest	2.7
05:30	3.5	northwest	3.4
05:40	3.6	northwest	4.0
05:50	3.6	northwest	3.8
06:00	3.6	northwest	3.7
06:10	3.8	northwest	3.7
06:20	3.5	northwest	4.9
06:30	3.5	northwest	4.3
06:40	3.6	northwest	4.2
06:50	3.6	north-northwest	4.2
07:00	3.7	north-northwest	5.2
07:10	3.7	north-northwest	4.7
07:20	3.6	north-northwest	4.6
07:30	3.5	north-northwest	4.1
07:40	3.5	north-northwest	2.7
07:50	3.5	north-northwest	2.2
08:00	3.5	north-northwest	2.6
08:10	3.6	north-northwest	2.6
08:20	3.5	north-northwest	3.0
08:30	3.6	north-northwest	2.5
08:40	3.5	north-northwest	3.4
08:50	3.5	north-northwest	3.8
09:00	3.6	north-northwest	4.4
09:10	3.3	north-northwest	4.2
09:20	3.6	north-northwest	3.7
09:30	3.4	north-northwest	3.8
09:40	3.8	north-northwest	4.4
09:50	3.6	north-northwest	3.9
10:00	3.5	north-northwest	4.0
10:10	3.7	north-northwest	3.6
10:20	3.6	northwest	2.6
10:30	3.6	north-northwest	3.2
10:40	3.5	north-northwest	3.1
10:50	3.7	north-northwest	3.2
11:00	3.6	north-northwest	2.3
11:10	3.6	north	3.8
11:20	3.7	north	3.4
11:30	3.6	north	3.8
11:40	3.5	north	3.9
11:50	3.6	north-northeast	3.2
12:00	3.6	north	3.1
12:10	3.5	north-northeast	3.5
12:20	3.6	north	2.5
12:30	3.6	north	2.7
12:40	3.7	north	2.5
12:50	3.6	north	2.8
13:00	3.6	north	2.4
13:10	3.5	north-northeast	3.4
13:20	3.4	north-northeast	3.5
13:30	3.6	north	3.3
13:40	3.5	north	2.2
13:50	3.6	northeast	2.7
14:00	3.6	north	3.1
14:10	3.6	north	3.2
14:20	3.6	north	3.5
14:30	3.6	north	2.9
14:40	3.4	north	3.8
14:50	3.6	north	3.8
15:00	3.5	north	3.9
15:10	3.6	north	3.8
15:20	3.7	north	4.7
15:30	3.5	north	4.1
15:40	3.5	north-northwest	3.2
15:50	3.6	north	3.4
16:00	3.6	north	2.9
16:10	3.6	north	3.9
16:20	3.7	north	3.6
16:30	3.6	north	1.9
16:40	3.4	northeast	0.7
16:50	3.5	north-northeast	1.2
17:00	3.7	north	1.5
17:10	3.4	north	1.7
17:20	3.6	north-northwest	1.1
17:30	3.7	north-northwest	1.8
17:40	3.6	north-northwest	1.9
17:50	3.5	north-northwest	2.5
18:00	3.6	north-northwest	3.6
18:10	3.6	north-northwest	3.3
18:20	3.5	north-northwest	3.3
18:30	3.6	north-northwest	2.6
18:40	3.6	northwest	2.5
18:50	3.5	northwest	2.9
19:00	3.6	north-northwest	2.8
19:10	3.6	north-northwest	2.8
19:20	3.5	north-northwest	3.0
19:30	3.7	north	3.9
19:40	3.6	north	4.0
19:50	3.7	north	3.9
20:00	3.5	north-northwest	3.6
20:10	3.7	north-northwest	3.3
20:20	3.5	north-northwest	3.5
20:30	3.7	north-northwest	3.4
20:40	3.5	north-northwest	3.1
20:50	3.6	north-northwest	2.8
21:00	3.4	north-northwest	2.7
21:10	3.6	north	2.6
21:20	3.5	north-northwest	2.1
21:30	3.6	north-northwest	1.5
21:40	3.5	north	1.9
21:50	3.6	north	1.6
22:00	3.6	north	1.6
22:10	3.5	north	1.9
22:20	3.5	north	1.1
22:30	3.4	north	1.4
22:40	3.6	north	1.8
22:50	3.5	north	1.0
23:00	3.6	north	2.2
23:10	3.5	north	2.4
23:20	3.6	north	2.6
23:30	3.7	north	2.0
23:40	3.6	north	1.5
23:50	3.6	north	1.3