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

○Information

○Measurement value list ： 2025/10/18(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	3.4	south-southwest	4.2
00:10	3.5	south-southwest	4.1
00:20	3.5	south-southwest	3.8
00:30	3.8	south-southwest	3.4
00:40	3.6	south	3.7
00:50	3.6	south-southeast	3.7
01:00	3.4	south	3.5
01:10	3.5	south	3.5
01:20	3.6	south	4.2
01:30	3.6	south	4.3
01:40	3.5	south	4.9
01:50	3.6	south	5.1
02:00	3.6	south-southeast	5.2
02:10	3.6	south	5.1
02:20	3.6	south	5.0
02:30	3.7	south	5.3
02:40	3.6	south	5.3
02:50	3.5	south	5.3
03:00	3.5	south	3.9
03:10	3.5	south-southwest	3.6
03:20	3.6	south-southwest	2.8
03:30	3.5	southwest	2.7
03:40	3.6	southwest	2.9
03:50	3.4	southwest	2.9
04:00	3.7	southwest	4.5
04:10	3.6	southwest	4.0
04:20	3.5	southwest	3.8
04:30	3.6	southwest	4.4
04:40	3.6	southwest	5.3
04:50	3.7	southwest	4.7
05:00	3.5	south-southwest	3.6
05:10	3.5	south-southwest	3.7
05:20	3.6	south-southwest	3.7
05:30	3.7	southwest	3.7
05:40	3.5	west-southwest	4.1
05:50	3.5	southwest	4.8
06:00	3.5	southwest	3.5
06:10	3.5	south-southwest	4.4
06:20	3.5	south-southwest	6.2
06:30	3.5	south-southwest	6.0
06:40	3.4	south-southwest	6.5
06:50	3.7	south-southwest	5.7
07:00	3.5	south-southwest	6.6
07:10	3.4	south-southwest	5.6
07:20	3.7	south-southwest	5.5
07:30	3.7	south-southwest	5.2
07:40	3.6	south-southwest	6.9
07:50	3.6	south-southwest	7.5
08:00	3.5	south-southwest	6.6
08:10	3.8	south-southwest	7.1
08:20	3.6	south	5.0
08:30	3.5	south	5.6
08:40	3.5	south	5.8
08:50	3.4	south	6.4
09:00	3.4	south	6.0
09:10	3.7	south	5.2
09:20	3.5	south-southeast	3.8
09:30	3.4	south-southeast	3.9
09:40	3.6	south-southeast	3.5
09:50	3.5	south-southeast	4.8
10:00	3.5	south-southeast	5.1
10:10	3.5	south-southeast	6.4
10:20	3.5	south-southeast	6.8
10:30	3.6	southeast	6.6
10:40	3.6	southeast	6.8
10:50	3.6	southeast	8.0
11:00	3.6	southeast	8.2
11:10	3.7	southeast	6.9
11:20	3.6	southeast	8.9
11:30	3.5	southeast	8.5
11:40	3.6	southeast	8.1
11:50	3.5	southeast	7.3
12:00	3.6	southeast	6.4
12:10	3.6	south-southeast	3.6
12:20	3.6	south	3.3
12:30	3.7	south	3.8
12:40	3.6	south-southeast	7.8
12:50	3.7	south-southeast	8.3
13:00	3.6	south-southeast	7.8
13:10	3.6	south-southeast	8.6
13:20	3.7	south-southeast	8.6
13:30	3.5	south-southeast	10.5
13:40	3.4	south-southeast	11.0
13:50	3.6	south-southeast	10.4
14:00	3.7	south	10.5
14:10	3.5	south-southeast	8.7
14:20	3.6	south	8.2
14:30	3.6	south-southeast	7.7
14:40	3.6	south	7.2
14:50	3.6	south	7.3
15:00	3.5	south	9.3
15:10	3.6	south-southeast	8.6
15:20	3.7	south-southeast	9.3
15:30	3.5	south-southeast	8.3
15:40	3.5	south-southeast	7.2
15:50	3.6	southeast	6.8
16:00	3.7	south-southeast	5.2
16:10	3.6	south-southeast	4.9
16:20	3.5	south-southeast	4.3
16:30	3.6	south-southeast	3.9
16:40	3.6	south-southeast	4.3
16:50	3.5	south	5.2
17:00	3.7	south	5.8
17:10	3.6	south	5.0
17:20	3.6	south	5.6
17:30	3.8	south-southwest	6.4
17:40	3.6	south-southwest	7.4
17:50	3.6	south-southwest	6.5
18:00	3.6	south	6.1
18:10	3.6	south-southwest	8.3
18:20	3.5	south-southwest	8.2
18:30	3.7	south-southwest	9.4
18:40	3.9	south-southwest	8.4
18:50	3.6	south-southwest	8.6
19:00	3.6	south-southwest	6.9
19:10	3.5	southwest	7.7
19:20	3.6	southwest	6.7
19:30	3.5	southwest	8.8
19:40	3.6	southwest	9.4
19:50	3.7	southwest	8.8
20:00	3.7	southwest	9.4
20:10	3.5	southwest	8.9
20:20	3.4	southwest	9.0
20:30	3.7	southwest	8.7
20:40	3.6	west-southwest	9.7
20:50	3.4	west-southwest	8.6
21:00	3.4	southwest	9.5
21:10	3.5	southwest	9.4
21:20	3.5	southwest	9.8
21:30	3.7	southwest	8.9
21:40	3.5	southwest	8.1
21:50	3.5	west-southwest	7.4
22:00	3.6	west-southwest	6.7
22:10	3.5	west	5.6
22:20	3.6	west	5.8
22:30	3.6	west	5.2
22:40	3.7	west	6.2
22:50	3.5	west-northwest	5.6
23:00	3.4	west-northwest	7.6
23:10	3.6	west	8.1
23:20	3.5	west-northwest	5.4
23:30	3.5	northwest	5.7
23:40	3.6	west	7.3
23:50	3.5	west-northwest	6.7