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

○Information

○Measurement value list ： 2026/10/19(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	8.6
00:10	3.4	south	8.6
00:20	3.5	south	8.4
00:30	3.4	south	8.0
00:40	3.4	south	6.6
00:50	3.5	south	5.1
01:00	3.4	south	6.3
01:10	3.4	south	7.6
01:20	3.5	south	7.9
01:30	3.4	south	5.8
01:40	3.5	south	6.9
01:50	3.6	south-southwest	8.2
02:00	3.5	south	5.0
02:10	3.5	south	5.4
02:20	3.6	south	7.1
02:30	3.6	south	6.9
02:40	3.6	south-southeast	6.2
02:50	3.5	south	5.2
03:00	3.5	south	5.6
03:10	3.4	south-southwest	6.8
03:20	3.5	south-southwest	5.8
03:30	3.5	south-southwest	6.5
03:40	3.5	south	7.0
03:50	3.4	south	7.1
04:00	3.7	south-southwest	9.2
04:10	3.6	south-southwest	8.1
04:20	3.6	south-southwest	9.9
04:30	3.5	south-southwest	9.7
04:40	3.7	south-southwest	10.3
04:50	3.6	south-southwest	9.9
05:00	3.5	south-southwest	10.5
05:10	3.5	south-southwest	12.4
05:20	3.5	south-southwest	8.0
05:30	3.5	south-southwest	5.2
05:40	3.6	south	2.8
05:50	3.5	south	5.0
06:00	3.6	south	5.0
06:10	3.4	south-southwest	5.0
06:20	3.5	south-southwest	4.0
06:30	3.5	south-southwest	5.6
06:40	3.6	southwest	4.8
06:50	3.6	southwest	6.4
07:00	3.4	south-southwest	7.4
07:10	3.5	south-southwest	6.3
07:20	3.3	southwest	5.4
07:30	3.6	southwest	6.5
07:40	3.5	southwest	6.9
07:50	3.5	south-southwest	5.3
08:00	3.6	south-southwest	4.3
08:10	3.4	south-southwest	3.9
08:20	3.7	south-southwest	3.1
08:30	3.4	south-southwest	3.8
08:40	3.5	southwest	1.9
08:50	3.4	south-southwest	3.9
09:00	3.6	south-southwest	2.7
09:10	3.4	south	1.5
09:20	3.4	southwest	2.0
09:30	3.3	south-southwest	4.2
09:40	3.6	south	7.0
09:50	3.5	south-southwest	6.8
10:00	3.6	south-southwest	7.0
10:10	3.5	south	4.7
10:20	3.4	south-southwest	5.1
10:30	3.6	southwest	6.7
10:40	3.4	south	6.0
10:50	3.4	south	4.8
11:00	3.5	south	4.4
11:10	3.5	south	7.3
11:20	3.5	south	6.4
11:30	3.5	south-southwest	6.8
11:40	3.6	south-southwest	5.7
11:50	3.4	southwest	4.7
12:00	3.6	southwest	4.8
12:10	3.4	southwest	5.9
12:20	3.6	southwest	6.6
12:30	3.4	southwest	7.9
12:40	3.6	southwest	7.7
12:50	3.3	southwest	6.7
13:00	3.8	south-southwest	3.7
13:10	3.5	south	3.9
13:20	3.6	south	2.6
13:30	3.5	south	3.6
13:40	3.6	south-southwest	3.7
13:50	3.5	south-southwest	3.0
14:00	3.5	south-southwest	4.0
14:10	3.5	southwest	3.8
14:20	3.6	southwest	3.2
14:30	3.5	southwest	2.2
14:40	3.6	south-southwest	2.0
14:50	3.5	south-southwest	2.9
15:00	3.5	south-southwest	4.6
15:10	3.6	south-southwest	2.7
15:20	3.3	south-southeast	2.5
15:30	3.7	southeast	0.7
15:40	3.5	south-southeast	1.0
15:50	3.5	south	2.2
16:00	3.4	south-southwest	3.1
16:10	3.5	southwest	2.7
16:20	3.5	south	0.8
16:30	3.8	south	2.0
16:40	3.6	south-southwest	4.8
16:50	3.4	south-southwest	7.8
17:00	3.4	south-southwest	6.7
17:10	3.5	south-southwest	6.5
17:20	3.6	south-southwest	6.4
17:30	3.6	south-southwest	5.3
17:40	3.5	south-southwest	4.0
17:50	3.5	south	3.7
18:00	3.5	south	3.2
18:10	3.4	south	3.0
18:20	3.5	south-southwest	4.9
18:30	3.6	south-southwest	5.0
18:40	3.5	south-southwest	4.1
18:50	3.5	south-southwest	4.2
19:00	3.5	south-southwest	4.9
19:10	3.4	south	2.8
19:20	3.4	south-southwest	2.4
19:30	3.6	south	1.4
19:40	3.5	southwest	1.2
19:50	3.5	southwest	1.0
20:00	3.4	west	1.1
20:10	3.5	-	CALM
20:20	3.5	west-northwest	0.7
20:30	3.5	-	CALM
20:40	3.5	southwest	0.9
20:50	3.5	south	2.1
21:00	3.4	south	3.0
21:10	3.5	south-southwest	3.5
21:20	3.6	south-southwest	4.5
21:30	3.5	south-southwest	5.6
21:40	3.5	south-southwest	3.1
21:50	3.6	south-southwest	2.3
22:00	3.6	southwest	1.9
22:10	3.6	south-southwest	1.7
22:20	3.6	west	1.5
22:30	3.4	west	1.5
22:40	3.4	southwest	2.0
22:50	3.5	southwest	3.4
23:00	3.5	south	3.6
23:10	3.5	south	3.5
23:20	3.5	south-southwest	4.8
23:30	3.5	south-southwest	5.5
23:40	3.4	south-southwest	6.3
23:50	3.6	south-southwest	5.9