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

○Information

○Measurement value list ： 2025/06/21(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	5.7
00:10	3.5	south	5.7
00:20	3.4	south	4.8
00:30	3.6	south	4.8
00:40	3.7	south	5.5
00:50	3.4	south	6.0
01:00	3.5	south	5.2
01:10	3.5	south	5.9
01:20	3.6	south	6.7
01:30	3.5	south	6.4
01:40	3.4	south	6.7
01:50	3.6	south	5.1
02:00	3.5	south	4.3
02:10	3.6	south-southwest	4.6
02:20	3.5	south	3.3
02:30	3.6	south	3.1
02:40	3.3	south	3.0
02:50	3.5	south-southwest	3.5
03:00	3.6	south	3.6
03:10	3.6	south-southwest	3.0
03:20	3.6	south	2.1
03:30	3.6	south	2.7
03:40	3.6	south	4.3
03:50	3.5	south	1.7
04:00	3.6	south-southeast	4.7
04:10	3.5	south-southeast	4.9
04:20	3.6	south	5.2
04:30	3.9	south	4.7
04:40	3.6	south-southeast	4.6
04:50	3.6	south-southeast	4.5
05:00	3.6	south	3.8
05:10	3.4	south	2.9
05:20	3.6	south	2.2
05:30	3.6	south	3.1
05:40	3.7	south	3.0
05:50	3.5	south-southeast	3.7
06:00	3.6	south-southeast	3.3
06:10	3.7	south-southeast	3.9
06:20	3.7	south-southeast	3.8
06:30	3.5	south	3.8
06:40	3.7	south-southeast	3.9
06:50	3.7	south-southeast	4.4
07:00	3.5	south-southeast	3.5
07:10	3.6	south	4.2
07:20	3.5	south-southeast	4.5
07:30	3.6	south-southeast	4.8
07:40	3.6	south-southeast	4.4
07:50	3.4	south-southeast	4.8
08:00	3.5	south-southeast	5.8
08:10	3.5	south-southeast	6.4
08:20	3.6	southeast	5.8
08:30	3.5	south-southeast	5.9
08:40	3.6	south-southeast	5.8
08:50	3.6	south-southeast	4.8
09:00	3.5	southeast	5.5
09:10	3.7	south-southeast	5.2
09:20	3.6	south-southeast	6.8
09:30	3.5	south-southeast	7.4
09:40	3.7	south-southeast	7.6
09:50	3.5	south-southeast	8.3
10:00	3.6	south-southeast	7.9
10:10	3.5	south-southeast	8.0
10:20	3.6	south-southeast	8.3
10:30	3.5	south-southeast	7.8
10:40	3.6	south-southeast	7.4
10:50	3.6	south-southeast	8.3
11:00	3.4	south-southeast	8.2
11:10	3.5	south-southeast	9.1
11:20	3.6	south-southeast	9.5
11:30	3.7	south-southeast	11.7
11:40	3.7	south-southeast	9.8
11:50	3.5	south-southeast	10.4
12:00	3.6	south-southeast	10.4
12:10	3.6	south-southeast	11.9
12:20	3.5	south-southeast	10.5
12:30	3.6	south-southeast	11.0
12:40	3.6	south-southeast	10.6
12:50	3.7	south-southeast	11.3
13:00	3.6	south-southeast	11.3
13:10	3.5	south-southeast	11.1
13:20	3.4	south-southeast	10.7
13:30	3.6	south-southeast	11.5
13:40	3.8	south-southeast	11.6
13:50	3.6	south-southeast	10.7
14:00	3.6	south-southeast	10.9
14:10	3.5	south-southeast	10.7
14:20	3.5	south-southeast	9.1
14:30	3.6	south-southeast	9.5
14:40	3.7	south-southeast	9.3
14:50	3.5	south-southeast	9.0
15:00	3.5	south-southeast	9.4
15:10	3.5	south-southeast	8.0
15:20	3.5	south-southeast	7.9
15:30	3.6	south-southeast	8.5
15:40	3.6	south-southeast	8.2
15:50	3.6	south-southeast	9.2
16:00	3.7	south-southeast	8.9
16:10	3.5	south-southeast	8.4
16:20	3.6	south-southeast	8.7
16:30	3.6	south-southeast	8.6
16:40	3.5	south-southeast	8.8
16:50	3.6	south	7.1
17:00	3.7	south-southeast	7.6
17:10	3.6	south	8.0
17:20	3.7	south	8.7
17:30	3.6	south-southeast	6.7
17:40	3.4	south	6.9
17:50	3.6	south	6.4
18:00	3.6	south-southeast	5.3
18:10	3.6	south-southeast	4.3
18:20	3.5	south	5.2
18:30	3.6	south	6.2
18:40	3.7	south	5.7
18:50	3.5	south	5.9
19:00	3.5	south	5.1
19:10	3.4	south	5.7
19:20	3.5	south	5.6
19:30	3.6	south	5.9
19:40	3.6	south-southeast	5.5
19:50	3.7	south-southeast	5.3
20:00	3.6	south	5.8
20:10	3.6	south	5.1
20:20	3.6	south-southeast	5.6
20:30	3.5	south	5.7
20:40	3.3	south	5.9
20:50	3.5	south	6.5
21:00	3.5	south	6.4
21:10	3.5	south	5.7
21:20	3.6	south	5.8
21:30	3.7	south	5.8
21:40	3.6	south	5.7
21:50	3.5	south	6.6
22:00	3.5	south	5.9
22:10	3.6	south	5.6
22:20	3.4	south-southeast	5.1
22:30	3.8	south-southeast	6.3
22:40	3.4	south	6.1
22:50	3.5	south	6.2
23:00	3.6	south	7.4
23:10	3.7	south	7.3
23:20	3.6	south	6.7
23:30	3.6	south	5.8
23:40	3.7	south	5.2
23:50	3.4	south-southwest	5.1