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

○Information

○Measurement value list ： 2026/09/14(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	3.4	south	2.8
00:10	3.5	south	3.8
00:20	3.4	south	4.1
00:30	3.5	south-southeast	3.8
00:40	3.7	south	2.3
00:50	3.7	south-southwest	2.1
01:00	3.6	south-southwest	2.7
01:10	3.5	south-southeast	3.6
01:20	3.5	south	4.7
01:30	3.5	south	5.3
01:40	3.6	south	4.5
01:50	3.5	south	4.4
02:00	3.5	south	4.8
02:10	3.7	south-southwest	3.4
02:20	3.4	south	2.6
02:30	3.7	south-southwest	2.6
02:40	3.6	south-southwest	3.2
02:50	3.8	south	3.4
03:00	3.6	south	3.6
03:10	3.5	south	4.5
03:20	3.5	south	5.7
03:30	3.6	south-southwest	6.5
03:40	3.4	south-southwest	6.0
03:50	3.6	south	6.9
04:00	3.6	south-southwest	5.7
04:10	3.5	southwest	5.4
04:20	3.7	southwest	4.5
04:30	3.7	southwest	4.5
04:40	3.5	south-southwest	4.9
04:50	3.7	south-southwest	3.2
05:00	3.7	west-southwest	1.4
05:10	3.5	west-northwest	0.9
05:20	3.6	southwest	1.2
05:30	3.5	south-southwest	1.8
05:40	3.6	south-southwest	1.3
05:50	3.6	south	1.2
06:00	3.6	south-southeast	2.2
06:10	3.7	south	4.1
06:20	3.4	south	5.1
06:30	3.5	south	5.3
06:40	3.5	south	5.4
06:50	3.5	south	5.2
07:00	3.6	south	4.3
07:10	3.8	south	3.7
07:20	3.5	south	2.8
07:30	3.4	south-southwest	2.0
07:40	3.5	southwest	2.5
07:50	3.7	south-southwest	1.4
08:00	3.6	south	0.6
08:10	3.5	southwest	1.3
08:20	3.6	south	1.1
08:30	3.5	south-southwest	3.1
08:40	3.6	south	2.8
08:50	3.6	south-southwest	2.9
09:00	3.6	southwest	4.1
09:10	3.6	south-southwest	3.8
09:20	3.5	south-southwest	4.2
09:30	3.6	south-southwest	3.9
09:40	3.4	south-southeast	3.5
09:50	3.6	south	3.6
10:00	3.5	south	4.2
10:10	3.6	south-southeast	5.2
10:20	3.5	southeast	5.7
10:30	3.6	southeast	5.8
10:40	3.4	south-southeast	7.0
10:50	3.5	south-southeast	7.3
11:00	3.6	south-southeast	6.7
11:10	3.5	south-southeast	6.7
11:20	3.6	south-southeast	6.7
11:30	3.7	south-southeast	7.2
11:40	3.5	south-southeast	7.1
11:50	3.5	south-southeast	8.6
12:00	3.5	south-southeast	8.3
12:10	3.5	south-southeast	8.8
12:20	3.6	south-southeast	8.2
12:30	3.6	south-southeast	8.1
12:40	3.6	south	8.1
12:50	3.6	south-southeast	7.6
13:00	3.6	south-southeast	8.3
13:10	3.5	south	8.3
13:20	3.4	south	7.7
13:30	3.5	south-southeast	7.5
13:40	3.5	south	8.9
13:50	3.5	south	8.7
14:00	3.7	south	7.5
14:10	3.7	south	9.3
14:20	3.4	south-southeast	8.1
14:30	3.7	south	6.9
14:40	3.6	south	7.6
14:50	3.6	south	7.7
15:00	3.6	south	8.4
15:10	3.4	south	7.4
15:20	3.6	south	6.0
15:30	3.6	south	5.3
15:40	3.6	south	6.0
15:50	3.6	south	6.8
16:00	3.6	south	6.5
16:10	3.6	south	6.3
16:20	3.7	south	6.8
16:30	3.5	south	6.6
16:40	3.5	south	6.4
16:50	3.7	south	6.4
17:00	3.6	south	5.4
17:10	3.6	south	3.8
17:20	3.5	south-southwest	2.8
17:30	3.6	south-southwest	2.5
17:40	3.7	south-southwest	2.8
17:50	3.6	south-southwest	2.7
18:00	3.6	south-southwest	2.8
18:10	3.6	south-southwest	4.0
18:20	3.5	south-southwest	3.8
18:30	3.4	south-southwest	3.6
18:40	3.6	south-southwest	3.2
18:50	3.6	south-southwest	3.6
19:00	3.5	south-southwest	3.8
19:10	3.5	south-southwest	3.5
19:20	3.6	south-southwest	3.8
19:30	3.5	south-southwest	2.9
19:40	3.5	south-southwest	3.7
19:50	3.5	south-southwest	3.0
20:00	3.4	southwest	1.5
20:10	3.6	north-northwest	4.7
20:20	3.7	north	3.8
20:30	3.5	north	2.1
20:40	3.6	north	2.6
20:50	3.5	north	3.0
21:00	3.6	north	4.3
21:10	3.7	north	3.8
21:20	3.6	north-northwest	3.4
21:30	3.5	north	4.3
21:40	3.4	north	4.3
21:50	3.5	north	4.0
22:00	3.5	north	4.1
22:10	3.6	north	3.1
22:20	3.5	north	3.4
22:30	3.6	north	3.9
22:40	3.5	north	3.2
22:50	3.4	north	3.3
23:00	3.6	north	3.4
23:10	3.5	north	3.7
23:20	3.6	north	2.9
23:30	3.6	north	3.1
23:40	3.6	north	4.0
23:50	3.6	north	3.2