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

○Information

○Measurement value list ： 2026/05/26(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	3.5	south	4.1
00:10	3.7	south	3.9
00:20	3.6	south	4.2
00:30	3.6	south	4.0
00:40	3.6	south	3.9
00:50	3.7	south	3.8
01:00	3.5	south-southeast	3.8
01:10	3.5	south-southeast	3.9
01:20	3.7	south-southeast	4.7
01:30	3.4	south-southeast	4.6
01:40	3.6	south	4.7
01:50	3.5	south	4.9
02:00	3.5	south	4.4
02:10	3.5	south	4.2
02:20	3.7	south	3.9
02:30	3.6	south	3.4
02:40	3.4	south	3.5
02:50	3.6	south	3.4
03:00	3.5	south	4.1
03:10	3.6	south	4.3
03:20	3.6	south	3.8
03:30	3.4	south	2.7
03:40	3.7	south	3.1
03:50	3.6	south	2.7
04:00	3.6	south	3.2
04:10	3.5	south	3.8
04:20	3.7	south	2.8
04:30	3.6	south	3.0
04:40	3.7	south-southwest	2.8
04:50	3.5	southwest	2.2
05:00	3.4	west	1.3
05:10	3.7	north-northwest	1.6
05:20	3.4	northwest	2.1
05:30	3.5	northwest	2.3
05:40	3.6	north-northwest	2.6
05:50	3.6	north-northwest	1.8
06:00	3.6	north	1.3
06:10	3.6	north-northeast	0.8
06:20	3.7	northeast	0.6
06:30	3.6	east	0.7
06:40	3.5	east-southeast	0.6
06:50	3.6	-	CALM
07:00	3.6	south	1.0
07:10	3.6	east-southeast	0.7
07:20	3.7	south-southeast	1.8
07:30	3.5	south-southeast	2.0
07:40	3.7	south-southeast	1.6
07:50	3.5	southeast	2.2
08:00	3.6	southeast	1.9
08:10	3.6	south-southeast	3.1
08:20	3.4	south-southeast	3.8
08:30	3.5	south-southeast	3.8
08:40	3.6	south-southeast	4.0
08:50	3.6	south-southeast	4.7
09:00	3.7	southeast	4.9
09:10	3.7	southeast	6.2
09:20	3.4	southeast	6.3
09:30	3.5	southeast	5.4
09:40	3.6	south-southeast	6.3
09:50	3.5	southeast	5.5
10:00	3.7	southeast	5.3
10:10	3.6	south-southeast	4.8
10:20	3.6	southeast	5.4
10:30	3.5	southeast	5.7
10:40	3.5	southeast	6.4
10:50	3.6	southeast	7.4
11:00	3.5	southeast	7.0
11:10	3.6	southeast	7.1
11:20	3.6	south-southeast	6.4
11:30	3.6	southeast	6.0
11:40	3.5	southeast	6.6
11:50	3.7	southeast	6.1
12:00	3.4	southeast	6.1
12:10	3.6	southeast	6.0
12:20	3.6	southeast	6.5
12:30	3.6	southeast	6.7
12:40	3.6	southeast	7.6
12:50	3.6	southeast	6.8
13:00	3.5	east-southeast	7.1
13:10	3.6	southeast	6.8
13:20	3.5	southeast	6.9
13:30	3.6	southeast	6.4
13:40	3.5	southeast	6.5
13:50	3.6	southeast	5.8
14:00	3.6	southeast	6.5
14:10	3.6	southeast	6.8
14:20	3.6	southeast	7.0
14:30	3.6	southeast	6.6
14:40	3.5	southeast	6.7
14:50	3.5	southeast	6.7
15:00	3.5	southeast	7.3
15:10	3.7	southeast	6.7
15:20	3.5	southeast	6.3
15:30	3.6	south-southeast	7.0
15:40	3.5	southeast	6.8
15:50	3.5	southeast	7.3
16:00	3.7	southeast	8.0
16:10	3.6	southeast	7.3
16:20	3.5	southeast	7.6
16:30	3.6	southeast	6.7
16:40	3.4	south-southeast	5.5
16:50	3.4	south-southeast	5.7
17:00	3.6	south-southeast	6.1
17:10	3.6	south-southeast	6.3
17:20	3.6	south-southeast	6.2
17:30	3.6	south-southeast	5.7
17:40	3.5	southeast	6.4
17:50	3.6	south-southeast	7.6
18:00	3.6	south-southeast	8.0
18:10	3.7	south-southeast	7.8
18:20	3.6	south-southeast	7.7
18:30	3.5	south-southeast	7.2
18:40	3.5	south-southeast	7.0
18:50	3.7	south-southeast	6.6
19:00	3.6	south-southeast	6.4
19:10	3.6	south-southeast	7.4
19:20	3.7	south-southeast	6.6
19:30	3.5	south-southeast	7.6
19:40	3.6	south-southeast	6.4
19:50	3.4	south-southeast	6.6
20:00	3.6	south-southeast	6.6
20:10	3.7	south-southeast	5.8
20:20	3.7	south	5.9
20:30	3.5	south-southeast	4.5
20:40	3.6	south	4.8
20:50	3.5	south-southeast	5.2
21:00	3.5	south-southeast	5.5
21:10	3.4	south	6.0
21:20	3.6	south	5.5
21:30	3.6	south	4.5
21:40	3.5	south	4.6
21:50	3.5	south	5.7
22:00	3.5	south	5.6
22:10	3.6	south	5.2
22:20	3.7	south	5.4
22:30	3.6	south	4.9
22:40	3.6	south	4.7
22:50	3.6	south	4.8
23:00	3.6	south	5.9
23:10	3.6	south-southeast	5.7
23:20	3.6	south	5.6
23:30	3.5	south	4.9
23:40	3.5	south	4.9
23:50	3.6	south-southwest	4.1