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

○Information

○Measurement value list ： 2025/09/01(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	1.0
00:10	3.5	south-southeast	1.8
00:20	3.5	south-southeast	2.1
00:30	3.5	south-southeast	2.7
00:40	3.5	south-southeast	2.3
00:50	3.5	southeast	2.2
01:00	3.7	south-southeast	2.4
01:10	3.7	south-southeast	2.4
01:20	3.6	south-southeast	3.0
01:30	3.4	south-southeast	3.1
01:40	3.6	south	2.8
01:50	3.5	south	2.4
02:00	3.4	south	2.6
02:10	3.6	south	3.0
02:20	3.5	south-southeast	2.8
02:30	3.5	south-southeast	2.9
02:40	3.6	south-southeast	3.4
02:50	3.5	south-southeast	3.4
03:00	3.6	south	2.5
03:10	3.5	south	2.2
03:20	3.4	south	2.3
03:30	3.6	south	2.0
03:40	3.4	south	2.8
03:50	3.5	south	2.7
04:00	3.5	south	2.5
04:10	3.5	south-southwest	2.3
04:20	3.6	south	3.5
04:30	3.5	south	3.9
04:40	3.5	south	4.0
04:50	3.6	south	4.0
05:00	3.7	south-southwest	4.0
05:10	3.5	south-southwest	2.9
05:20	3.5	south-southwest	4.0
05:30	3.3	south-southwest	3.4
05:40	3.5	south	2.5
05:50	3.6	south	2.9
06:00	3.7	south	3.3
06:10	3.6	south	3.2
06:20	3.6	south	2.9
06:30	3.7	south-southeast	2.4
06:40	3.4	south-southeast	2.6
06:50	3.5	south-southeast	2.3
07:00	3.6	south	2.4
07:10	3.5	south-southeast	1.7
07:20	3.4	southeast	1.5
07:30	3.4	southeast	1.6
07:40	3.5	southeast	1.9
07:50	3.7	east-southeast	2.7
08:00	3.5	southeast	2.6
08:10	3.6	southeast	3.2
08:20	3.5	southeast	4.2
08:30	3.4	southeast	4.0
08:40	3.5	southeast	4.0
08:50	3.7	south-southeast	4.6
09:00	3.6	south-southeast	4.5
09:10	3.7	south-southeast	4.7
09:20	3.6	south-southeast	4.4
09:30	3.6	south-southeast	5.1
09:40	3.5	south-southeast	5.6
09:50	3.4	south-southeast	5.8
10:00	3.5	south-southeast	5.9
10:10	3.6	south-southeast	5.2
10:20	3.6	south-southeast	4.4
10:30	3.6	south-southeast	4.6
10:40	3.6	south-southeast	7.7
10:50	3.5	south-southeast	7.6
11:00	3.6	south-southeast	7.7
11:10	3.5	south-southeast	7.6
11:20	3.7	south-southeast	7.7
11:30	3.5	south-southeast	7.6
11:40	3.7	south-southeast	8.7
11:50	3.6	south-southeast	7.9
12:00	3.7	south-southeast	8.3
12:10	3.5	south-southeast	8.1
12:20	3.5	south-southeast	7.4
12:30	3.6	south-southeast	6.2
12:40	3.5	south-southeast	6.3
12:50	3.6	south-southeast	5.4
13:00	3.7	south-southeast	6.1
13:10	3.7	south-southeast	6.2
13:20	3.5	south-southeast	6.5
13:30	3.5	south-southeast	5.7
13:40	3.4	south-southeast	5.9
13:50	3.7	south-southeast	6.4
14:00	3.5	south-southeast	5.6
14:10	3.7	south-southeast	5.6
14:20	3.8	south-southeast	4.9
14:30	3.7	south-southeast	5.3
14:40	3.6	south-southeast	6.3
14:50	3.5	south-southeast	6.2
15:00	3.5	south-southeast	6.3
15:10	3.5	south-southeast	5.4
15:20	3.6	south-southeast	6.2
15:30	3.4	south-southeast	5.8
15:40	3.4	south-southeast	4.9
15:50	3.4	south-southeast	4.8
16:00	3.6	south-southeast	6.4
16:10	3.6	south-southeast	5.9
16:20	3.7	south-southeast	6.2
16:30	3.4	south-southeast	6.5
16:40	3.5	south-southeast	6.3
16:50	3.6	south-southeast	6.3
17:00	3.6	south-southeast	6.0
17:10	3.6	south-southeast	6.4
17:20	3.6	south-southeast	6.0
17:30	3.6	south	6.2
17:40	3.4	south	6.3
17:50	3.6	south	6.7
18:00	3.6	south	5.8
18:10	3.6	south	5.8
18:20	3.5	south	6.3
18:30	3.6	south	6.3
18:40	3.6	south	6.4
18:50	3.5	south	6.6
19:00	3.6	south	6.3
19:10	3.6	south	6.1
19:20	3.6	south	6.1
19:30	3.5	south	5.1
19:40	3.7	south	4.7
19:50	3.5	south	4.4
20:00	3.6	south	4.7
20:10	3.6	south	5.0
20:20	3.6	south	5.0
20:30	3.5	south	5.3
20:40	3.5	south	5.1
20:50	3.6	south	5.0
21:00	3.6	south	3.8
21:10	3.6	south	3.3
21:20	3.6	south	4.1
21:30	3.6	south	4.4
21:40	3.5	south	4.4
21:50	3.4	south-southwest	5.2
22:00	3.7	south-southwest	5.2
22:10	3.6	south-southwest	5.6
22:20	3.7	south-southwest	6.1
22:30	3.6	southwest	6.8
22:40	3.5	southwest	6.1
22:50	3.7	southwest	6.4
23:00	3.5	southwest	8.7
23:10	3.5	southwest	6.3
23:20	3.6	southwest	4.1
23:30	3.5	southwest	4.0
23:40	3.6	south-southwest	3.2
23:50	3.5	southwest	4.5