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

○Information

○Measurement value list ： 2026/04/26(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	3.7	south-southwest	4.6
00:10	3.7	south-southwest	4.5
00:20	3.5	south-southwest	4.4
00:30	3.6	south-southwest	4.6
00:40	3.6	south-southwest	3.9
00:50	3.6	south-southwest	3.7
01:00	3.5	south-southwest	3.5
01:10	3.6	south-southwest	3.6
01:20	3.7	southwest	3.7
01:30	3.6	south-southwest	3.9
01:40	3.7	southwest	3.0
01:50	3.5	southwest	3.5
02:00	3.7	southwest	3.2
02:10	3.5	southwest	3.3
02:20	3.6	southwest	3.2
02:30	3.6	southwest	3.3
02:40	3.7	southwest	2.8
02:50	3.6	southwest	3.4
03:00	3.5	southwest	3.1
03:10	3.6	southwest	2.9
03:20	3.5	southwest	3.5
03:30	3.7	southwest	3.2
03:40	3.6	south-southwest	2.8
03:50	3.6	south-southwest	2.7
04:00	3.7	south-southwest	2.6
04:10	3.6	south-southwest	2.6
04:20	3.6	south-southwest	1.9
04:30	3.7	south-southwest	2.1
04:40	3.6	south-southwest	2.2
04:50	3.7	southwest	2.2
05:00	3.7	southwest	1.8
05:10	3.6	south-southwest	1.8
05:20	3.6	south	1.8
05:30	3.5	south	1.8
05:40	3.6	south	1.8
05:50	3.6	south-southeast	1.5
06:00	3.6	south-southeast	1.5
06:10	3.6	south-southeast	2.0
06:20	3.4	south-southeast	1.9
06:30	3.5	south-southeast	2.8
06:40	3.5	south-southeast	2.7
06:50	3.4	south-southeast	2.9
07:00	3.5	south-southeast	2.8
07:10	3.5	south-southeast	2.4
07:20	3.6	south-southeast	2.5
07:30	3.5	south-southeast	2.7
07:40	3.4	south	2.9
07:50	3.6	south-southeast	3.6
08:00	3.5	south-southeast	3.7
08:10	3.6	southeast	4.9
08:20	3.7	south-southeast	6.7
08:30	3.5	southeast	6.4
08:40	3.6	south-southeast	5.9
08:50	3.5	south-southeast	4.9
09:00	3.6	south	7.5
09:10	3.6	south-southeast	5.9
09:20	3.5	southeast	8.3
09:30	3.6	southeast	8.1
09:40	3.8	southeast	8.4
09:50	3.6	southeast	9.4
10:00	3.6	south-southeast	9.9
10:10	3.4	southeast	9.0
10:20	3.5	southeast	9.2
10:30	3.6	southeast	9.4
10:40	3.7	southeast	10.7
10:50	3.6	southeast	10.4
11:00	3.6	southeast	10.4
11:10	3.5	southeast	10.6
11:20	3.8	south-southeast	10.8
11:30	3.5	south-southeast	11.2
11:40	3.8	south-southeast	10.9
11:50	3.5	southeast	9.9
12:00	3.7	south-southeast	10.9
12:10	3.5	southeast	9.5
12:20	3.5	southeast	11.3
12:30	3.5	southeast	9.5
12:40	3.7	southeast	11.0
12:50	3.6	southeast	10.0
13:00	3.6	south-southeast	9.3
13:10	3.6	south-southeast	10.4
13:20	3.7	southeast	9.7
13:30	3.5	south-southeast	10.2
13:40	3.4	southeast	9.9
13:50	3.5	southeast	9.7
14:00	3.7	south-southeast	10.9
14:10	3.6	southeast	9.9
14:20	3.6	south-southeast	9.2
14:30	3.6	southeast	10.0
14:40	3.6	south-southeast	8.9
14:50	3.6	south-southeast	9.4
15:00	3.6	south-southeast	9.0
15:10	3.6	south-southeast	10.1
15:20	3.5	south-southeast	10.3
15:30	3.7	south-southeast	9.8
15:40	3.6	south-southeast	9.0
15:50	3.7	south-southeast	9.3
16:00	3.6	south-southeast	10.0
16:10	3.7	south-southeast	8.5
16:20	3.6	south-southeast	8.5
16:30	3.6	south-southeast	8.9
16:40	3.6	south-southeast	9.4
16:50	3.6	south-southeast	7.4
17:00	3.5	south-southeast	8.0
17:10	3.5	south-southeast	8.3
17:20	3.6	south	7.2
17:30	3.5	south	7.7
17:40	3.6	south	7.8
17:50	3.6	south	6.9
18:00	3.7	south	6.7
18:10	3.7	south	6.1
18:20	3.5	south	5.1
18:30	3.6	south	4.8
18:40	3.7	south	4.4
18:50	3.7	south	5.4
19:00	3.6	south	6.1
19:10	3.6	south	6.1
19:20	3.6	south	6.4
19:30	3.6	south	6.3
19:40	3.7	south	5.5
19:50	3.6	south	5.6
20:00	3.7	south	5.2
20:10	3.5	south-southwest	4.3
20:20	3.4	south-southwest	5.0
20:30	3.5	south-southwest	4.7
20:40	3.4	south-southwest	4.4
20:50	3.4	south-southwest	3.1
21:00	3.4	south	4.3
21:10	3.6	south	5.0
21:20	3.4	south	5.8
21:30	3.6	south	5.8
21:40	3.6	south	5.7
21:50	3.5	south	5.9
22:00	3.6	south	5.2
22:10	3.7	south	5.4
22:20	3.6	south	4.6
22:30	3.6	south-southwest	3.7
22:40	3.5	south	3.5
22:50	3.7	south	3.7
23:00	3.6	south	3.2
23:10	3.6	south-southwest	2.4
23:20	3.5	south	2.0
23:30	3.5	south	2.0
23:40	3.4	south	2.1
23:50	3.7	south	1.9