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

○Information

○Measurement value list ： 2026/05/11(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	south-southwest	5.2
00:10	3.4	south-southwest	5.3
00:20	3.7	south-southwest	4.8
00:30	3.6	south-southwest	4.2
00:40	3.6	south	3.6
00:50	3.6	south-southwest	3.1
01:00	3.5	south-southwest	3.6
01:10	3.6	south-southwest	3.6
01:20	3.6	southwest	5.4
01:30	3.5	southwest	5.4
01:40	3.4	south-southwest	5.5
01:50	3.5	south-southwest	5.4
02:00	3.5	south-southwest	5.5
02:10	3.6	south-southwest	5.2
02:20	3.8	south-southwest	3.7
02:30	3.6	south-southwest	4.4
02:40	3.6	south-southwest	3.2
02:50	3.6	south-southeast	1.7
03:00	3.6	southeast	2.1
03:10	3.6	south-southeast	2.8
03:20	3.5	south-southeast	3.1
03:30	3.4	south-southeast	2.9
03:40	3.5	south	3.2
03:50	3.5	south-southeast	2.1
04:00	3.5	south-southeast	2.6
04:10	3.6	south-southeast	2.4
04:20	3.8	south	2.1
04:30	3.6	southeast	1.9
04:40	3.5	south-southwest	2.0
04:50	3.7	south-southwest	2.9
05:00	3.6	south-southwest	3.3
05:10	3.6	south-southeast	1.7
05:20	3.5	south	1.5
05:30	3.6	south	2.6
05:40	3.5	south-southeast	2.4
05:50	3.6	southeast	1.3
06:00	3.5	south	3.8
06:10	3.7	south	3.9
06:20	3.5	south	4.3
06:30	3.7	south-southwest	3.7
06:40	3.6	south	3.0
06:50	3.7	south	2.4
07:00	3.6	south-southeast	3.1
07:10	3.5	south	2.5
07:20	3.6	south-southwest	2.6
07:30	3.5	south	2.3
07:40	3.6	south-southwest	3.2
07:50	3.4	south	3.8
08:00	3.6	south-southwest	4.7
08:10	3.6	south	3.7
08:20	3.5	south	2.9
08:30	3.6	south-southwest	3.2
08:40	3.6	south	3.8
08:50	3.6	south	3.9
09:00	3.5	south-southeast	3.7
09:10	3.6	south-southeast	3.9
09:20	3.6	southeast	3.3
09:30	3.5	south-southwest	3.3
09:40	3.7	southwest	4.6
09:50	3.7	south-southeast	4.7
10:00	3.5	southeast	6.5
10:10	3.7	south-southeast	6.3
10:20	3.6	south-southeast	6.8
10:30	3.6	south-southeast	8.0
10:40	3.7	south-southeast	8.9
10:50	3.5	south-southeast	7.0
11:00	3.4	south-southeast	6.5
11:10	3.7	south-southeast	8.7
11:20	3.6	south-southeast	8.2
11:30	3.5	southeast	8.4
11:40	3.6	south-southeast	9.3
11:50	3.5	south-southeast	8.3
12:00	3.6	south-southeast	9.4
12:10	3.6	south-southeast	8.4
12:20	3.5	south-southeast	10.0
12:30	3.7	south-southeast	9.6
12:40	3.6	south-southeast	9.0
12:50	3.5	south-southeast	10.4
13:00	3.6	south-southeast	9.5
13:10	3.6	south-southeast	10.2
13:20	3.8	south-southeast	10.9
13:30	3.7	south-southeast	10.8
13:40	3.6	south-southeast	10.5
13:50	3.6	south-southeast	10.1
14:00	3.6	south-southeast	9.7
14:10	3.6	south-southeast	9.6
14:20	3.6	south-southeast	10.3
14:30	3.7	south-southeast	8.6
14:40	3.6	south-southeast	8.7
14:50	3.6	south	9.2
15:00	3.5	south-southeast	9.7
15:10	3.5	south-southeast	9.2
15:20	3.6	south-southeast	9.4
15:30	3.6	south-southeast	10.4
15:40	3.5	south-southeast	9.8
15:50	3.5	south-southeast	9.0
16:00	3.5	south-southeast	8.8
16:10	3.6	south-southeast	8.5
16:20	3.5	south-southeast	8.6
16:30	3.6	south-southeast	8.4
16:40	3.6	south-southeast	7.6
16:50	3.7	south	7.0
17:00	3.7	south	6.7
17:10	3.6	south	6.8
17:20	3.6	south	9.4
17:30	3.5	south	6.6
17:40	3.5	south	8.0
17:50	3.8	south	8.3
18:00	3.6	south	9.4
18:10	3.6	south	8.0
18:20	3.6	south	8.0
18:30	3.5	south-southeast	7.2
18:40	3.5	south	7.9
18:50	3.6	south	7.6
19:00	3.6	south	8.1
19:10	3.5	south	8.1
19:20	3.6	south	9.0
19:30	3.5	south-southeast	7.9
19:40	3.5	south	8.1
19:50	3.6	south	7.8
20:00	3.6	south	7.3
20:10	3.6	south	8.8
20:20	3.6	south	7.4
20:30	3.6	south	8.9
20:40	3.6	south	8.0
20:50	3.4	south-southeast	7.7
21:00	3.5	south-southeast	7.8
21:10	3.7	south	8.3
21:20	3.5	south	8.0
21:30	3.5	south	7.0
21:40	3.8	south	6.3
21:50	3.6	south-southeast	6.2
22:00	3.7	south-southeast	5.9
22:10	3.5	south-southeast	6.4
22:20	3.5	south-southeast	6.3
22:30	3.6	south	7.1
22:40	3.5	south	6.7
22:50	3.5	south	6.9
23:00	3.6	south	6.4
23:10	3.6	south	5.4
23:20	3.6	south	5.6
23:30	3.6	south	6.0
23:40	3.5	south	5.6
23:50	3.5	south	5.7