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

○Information

○Measurement value list ： 2026/04/24(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	6.5
00:10	3.5	northwest	6.3
00:20	3.5	northwest	5.6
00:30	3.5	northwest	5.9
00:40	3.6	northwest	6.3
00:50	3.7	northwest	6.5
01:00	3.6	northwest	6.2
01:10	3.6	northwest	6.9
01:20	3.5	northwest	6.1
01:30	3.4	northwest	6.2
01:40	3.7	northwest	6.3
01:50	3.5	northwest	6.1
02:00	3.5	northwest	6.4
02:10	3.6	northwest	6.1
02:20	3.6	northwest	6.2
02:30	3.5	north-northwest	6.4
02:40	3.6	north-northwest	6.9
02:50	3.7	northwest	6.4
03:00	3.6	northwest	6.3
03:10	3.4	northwest	6.2
03:20	3.8	northwest	5.9
03:30	3.4	northwest	7.0
03:40	3.7	northwest	6.0
03:50	3.5	northwest	5.9
04:00	3.6	north-northwest	6.1
04:10	3.6	northwest	6.3
04:20	3.5	northwest	6.4
04:30	3.5	northwest	6.7
04:40	3.8	northwest	5.6
04:50	3.5	northwest	5.9
05:00	3.6	northwest	6.3
05:10	3.6	northwest	5.0
05:20	3.6	northwest	4.9
05:30	3.6	northwest	5.8
05:40	3.5	northwest	6.2
05:50	3.6	northwest	5.8
06:00	3.6	northwest	5.5
06:10	3.5	northwest	6.1
06:20	3.5	northwest	5.9
06:30	3.6	north-northwest	6.4
06:40	3.6	north-northwest	6.3
06:50	3.5	north-northwest	6.4
07:00	3.6	north-northwest	5.6
07:10	3.5	north-northwest	4.8
07:20	3.7	north-northwest	6.2
07:30	3.6	north-northwest	6.3
07:40	3.7	north-northwest	5.8
07:50	3.4	north-northwest	5.5
08:00	3.6	north-northwest	5.7
08:10	3.6	north	6.3
08:20	3.8	north-northwest	5.0
08:30	3.7	north	5.6
08:40	3.5	north	5.1
08:50	3.5	north	6.2
09:00	3.6	north	5.5
09:10	3.5	north	5.8
09:20	3.7	north	5.2
09:30	3.6	north	6.8
09:40	3.5	north	6.2
09:50	3.6	north	5.8
10:00	3.5	north	6.9
10:10	3.4	north	6.7
10:20	3.6	north-northeast	5.9
10:30	3.7	north-northeast	6.5
10:40	3.4	north-northeast	6.6
10:50	3.5	north-northeast	6.3
11:00	3.5	north	5.6
11:10	3.6	north-northeast	7.4
11:20	3.6	north-northeast	6.6
11:30	3.5	north-northeast	4.2
11:40	3.6	north-northeast	5.6
11:50	3.7	north-northeast	4.8
12:00	3.6	northeast	4.3
12:10	3.6	northeast	6.4
12:20	3.6	northeast	6.1
12:30	3.7	north-northeast	5.2
12:40	3.7	northeast	4.0
12:50	3.5	east-northeast	5.3
13:00	3.4	northeast	5.3
13:10	3.7	east-northeast	3.7
13:20	3.5	east-northeast	6.5
13:30	3.5	northeast	3.9
13:40	3.5	north-northeast	4.1
13:50	3.5	northeast	4.8
14:00	3.5	northeast	4.4
14:10	3.6	northeast	4.3
14:20	3.5	northeast	4.0
14:30	3.5	northeast	5.8
14:40	3.8	east-northeast	3.9
14:50	3.7	northeast	5.0
15:00	3.5	northeast	4.9
15:10	3.7	northeast	4.3
15:20	3.6	northeast	3.4
15:30	3.8	northeast	3.5
15:40	3.6	northeast	3.1
15:50	3.6	northeast	3.7
16:00	3.7	north-northeast	3.7
16:10	3.6	north-northeast	3.2
16:20	3.6	northeast	3.4
16:30	3.5	north	3.5
16:40	3.8	north-northeast	2.7
16:50	3.5	north-northeast	3.3
17:00	3.6	northeast	2.9
17:10	3.6	north-northeast	3.8
17:20	3.5	north-northeast	3.9
17:30	3.8	northeast	4.3
17:40	3.6	north-northeast	4.1
17:50	3.6	north	3.1
18:00	3.6	north-northeast	3.2
18:10	3.7	north-northeast	4.0
18:20	3.5	north	3.3
18:30	3.4	north-northeast	3.1
18:40	3.5	north	2.4
18:50	3.5	north	2.3
19:00	3.5	north	3.5
19:10	3.7	north	4.1
19:20	3.5	north	3.8
19:30	3.5	north-northwest	3.7
19:40	3.4	north-northwest	3.8
19:50	3.7	north-northwest	3.5
20:00	3.6	northwest	3.2
20:10	3.6	northwest	3.2
20:20	3.5	northwest	3.4
20:30	3.7	northwest	3.7
20:40	3.5	northwest	3.8
20:50	3.5	northwest	3.6
21:00	3.6	northwest	3.8
21:10	3.6	northwest	3.5
21:20	3.5	northwest	3.7
21:30	3.6	northwest	3.3
21:40	3.6	northwest	3.5
21:50	3.5	northwest	3.7
22:00	3.4	northwest	3.4
22:10	3.5	northwest	3.9
22:20	3.7	northwest	3.9
22:30	3.5	northwest	3.5
22:40	3.6	northwest	3.7
22:50	3.5	northwest	3.7
23:00	3.4	northwest	3.9
23:10	3.6	west-northwest	4.1
23:20	3.5	northwest	4.0
23:30	3.4	northwest	3.6
23:40	3.6	northwest	3.8
23:50	3.6	northwest	4.0