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

○Information

○Measurement value list ： 2025/09/25(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	southwest	3.4
00:10	3.5	south-southwest	3.4
00:20	3.6	south-southwest	3.3
00:30	3.7	south	3.7
00:40	3.6	south-southwest	3.7
00:50	3.7	south-southwest	3.4
01:00	3.5	south-southwest	3.2
01:10	3.7	south-southwest	3.0
01:20	3.6	south-southwest	3.2
01:30	3.6	south-southwest	3.4
01:40	3.6	south-southwest	3.7
01:50	3.6	southwest	4.2
02:00	3.6	south-southwest	3.6
02:10	3.6	south-southwest	3.7
02:20	3.5	south-southwest	4.2
02:30	3.5	south-southwest	3.9
02:40	3.7	south	3.6
02:50	3.5	south	4.1
03:00	3.6	south	4.4
03:10	3.7	south-southwest	4.3
03:20	3.5	south-southwest	3.8
03:30	3.6	south-southwest	4.1
03:40	3.5	south-southwest	4.1
03:50	3.4	south	4.0
04:00	3.6	south	4.6
04:10	3.6	south	5.6
04:20	3.5	south	5.3
04:30	3.6	south	5.6
04:40	3.6	south	5.2
04:50	3.6	south	4.7
05:00	3.5	south	5.4
05:10	3.4	south	5.5
05:20	3.6	south	5.8
05:30	3.5	south	6.4
05:40	3.7	south	7.3
05:50	3.5	south	7.8
06:00	3.4	south	6.9
06:10	3.6	south	6.0
06:20	3.4	south	5.4
06:30	3.6	south	6.4
06:40	3.5	south-southeast	7.1
06:50	3.6	south-southeast	7.2
07:00	3.6	south	6.6
07:10	3.7	south	5.8
07:20	3.4	south	5.8
07:30	3.4	south-southeast	5.2
07:40	3.3	south-southeast	5.6
07:50	3.6	south	6.2
08:00	3.7	south-southeast	5.1
08:10	3.6	south	5.1
08:20	3.5	south-southeast	5.4
08:30	3.5	south-southeast	4.5
08:40	3.4	south-southeast	4.1
08:50	3.6	south	4.5
09:00	3.7	south-southeast	4.6
09:10	3.6	south	5.1
09:20	3.5	south-southeast	4.4
09:30	3.6	south-southeast	5.0
09:40	3.7	southeast	4.9
09:50	3.6	south-southeast	6.6
10:00	3.6	south-southeast	5.3
10:10	3.6	south-southeast	3.9
10:20	3.6	south	3.8
10:30	3.7	south-southeast	4.7
10:40	3.7	southeast	6.1
10:50	3.7	south-southeast	5.7
11:00	3.5	southeast	6.2
11:10	3.6	south-southeast	6.8
11:20	3.7	south-southeast	7.5
11:30	3.4	south-southeast	6.6
11:40	3.7	south-southeast	6.3
11:50	3.7	south-southeast	6.5
12:00	3.5	south-southeast	6.6
12:10	3.5	south-southeast	5.9
12:20	3.5	south-southeast	6.0
12:30	3.6	south-southeast	5.8
12:40	3.5	south	5.9
12:50	3.6	south-southeast	5.9
13:00	3.6	south-southeast	6.1
13:10	3.6	south-southeast	6.5
13:20	3.7	south-southeast	5.4
13:30	3.7	south-southeast	5.6
13:40	3.5	south-southeast	6.0
13:50	3.7	south-southeast	4.6
14:00	3.6	south-southeast	5.7
14:10	3.6	south-southeast	5.3
14:20	3.6	south-southeast	4.1
14:30	3.7	south-southeast	3.1
14:40	3.7	south-southeast	3.7
14:50	3.7	south-southeast	3.7
15:00	3.5	south-southeast	4.4
15:10	3.6	south	4.4
15:20	3.6	south	4.0
15:30	3.4	south	4.1
15:40	3.6	south	3.1
15:50	3.6	south	3.0
16:00	3.4	south-southeast	2.4
16:10	3.6	south	3.1
16:20	3.6	south	3.2
16:30	3.5	south	3.5
16:40	3.4	south	2.6
16:50	3.7	south	2.7
17:00	3.7	south	3.1
17:10	3.5	south-southeast	3.3
17:20	3.7	south	3.4
17:30	3.7	south	4.3
17:40	3.6	south	5.1
17:50	3.7	south	5.4
18:00	3.7	south	4.9
18:10	3.5	south	4.8
18:20	3.6	south	5.1
18:30	3.6	south	5.1
18:40	3.5	south-southeast	4.1
18:50	3.6	south	5.2
19:00	3.6	south	4.9
19:10	3.5	south	4.0
19:20	3.5	south	4.4
19:30	3.6	south	3.6
19:40	3.6	south	3.8
19:50	3.7	south	4.4
20:00	3.5	south-southwest	3.7
20:10	3.7	south-southwest	3.4
20:20	3.5	south-southwest	3.8
20:30	3.5	south-southwest	5.8
20:40	3.4	south	5.0
20:50	3.5	south-southwest	3.5
21:00	3.9	south	4.5
21:10	3.6	south-southwest	5.7
21:20	3.7	south-southwest	6.0
21:30	3.6	southwest	5.8
21:40	3.6	southwest	6.8
21:50	3.5	west-southwest	7.5
22:00	3.6	southwest	5.3
22:10	3.6	south-southwest	4.1
22:20	3.5	south-southwest	5.4
22:30	3.5	south-southwest	4.0
22:40	3.4	south-southwest	5.3
22:50	3.5	south-southwest	5.0
23:00	3.5	south-southwest	5.7
23:10	3.7	south	5.4
23:20	3.6	south	6.0
23:30	3.5	south-southwest	5.3
23:40	3.5	south-southwest	4.6
23:50	3.5	south-southwest	3.8