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

○Information

○Measurement value list ： 2026/09/09(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	south-southeast	5.1
00:10	3.4	south-southeast	6.8
00:20	3.7	south	5.9
00:30	3.6	south	5.6
00:40	3.7	south	6.2
00:50	3.6	south	6.0
01:00	3.6	south	5.8
01:10	3.5	south	5.5
01:20	3.6	south	4.7
01:30	3.5	south	4.3
01:40	3.5	south	3.7
01:50	3.8	south-southeast	4.3
02:00	3.6	south-southeast	5.1
02:10	3.6	south-southeast	5.0
02:20	3.6	south-southeast	3.1
02:30	3.5	south	3.3
02:40	3.6	south	3.1
02:50	3.5	south	4.6
03:00	3.5	south	4.3
03:10	3.6	south	3.9
03:20	3.6	south	3.0
03:30	3.4	south	2.0
03:40	3.6	south-southwest	1.4
03:50	3.7	south-southwest	1.8
04:00	3.7	south-southwest	2.5
04:10	3.7	south-southwest	3.2
04:20	3.6	southwest	1.3
04:30	3.6	-	CALM
04:40	3.4	northwest	0.8
04:50	3.6	northwest	1.1
05:00	3.5	west-northwest	2.1
05:10	3.6	northwest	1.8
05:20	3.6	northwest	2.3
05:30	3.6	west-northwest	0.6
05:40	3.6	north-northwest	2.2
05:50	3.5	north-northwest	2.2
06:00	3.6	north-northwest	3.1
06:10	3.8	north-northwest	3.0
06:20	3.5	north	2.6
06:30	3.5	north	1.8
06:40	3.5	north-northwest	2.4
06:50	3.6	north-northwest	3.7
07:00	3.5	north-northwest	2.6
07:10	3.6	north-northwest	3.9
07:20	3.6	north	2.7
07:30	3.4	north	2.4
07:40	3.7	north	1.9
07:50	3.6	north	2.6
08:00	3.6	north	3.2
08:10	3.7	north	2.7
08:20	3.7	north	4.2
08:30	3.7	north	4.7
08:40	3.5	north	3.8
08:50	3.6	north	3.6
09:00	3.6	north	4.6
09:10	3.5	north	4.4
09:20	3.6	north	4.6
09:30	3.6	north	4.0
09:40	3.7	north	3.5
09:50	3.6	north	3.1
10:00	3.6	north	4.2
10:10	3.7	north	4.0
10:20	3.6	north	3.6
10:30	3.6	north	1.5
10:40	3.6	north	3.6
10:50	3.7	north	5.8
11:00	3.6	north-northwest	3.4
11:10	3.6	north-northwest	3.9
11:20	3.7	north-northwest	4.6
11:30	3.6	north-northwest	4.7
11:40	3.5	north-northwest	5.6
11:50	3.7	north-northwest	4.5
12:00	3.7	north-northwest	7.1
12:10	3.6	north-northwest	5.9
12:20	3.5	north-northwest	4.0
12:30	3.7	north-northwest	4.1
12:40	3.5	north	4.8
12:50	3.4	north	4.4
13:00	3.6	north	4.5
13:10	3.6	northwest	5.5
13:20	3.6	north	6.1
13:30	3.4	north	4.9
13:40	3.5	north	5.2
13:50	3.8	north-northeast	4.1
14:00	3.6	north-northeast	5.1
14:10	3.4	north-northeast	3.6
14:20	3.6	north	4.5
14:30	3.5	north	3.1
14:40	3.7	north	2.8
14:50	3.5	north	3.9
15:00	3.5	north-northeast	4.8
15:10	3.6	north-northeast	4.7
15:20	3.7	north-northeast	4.6
15:30	3.6	north-northeast	3.4
15:40	3.6	north-northeast	4.0
15:50	3.6	north-northeast	5.0
16:00	3.7	north-northeast	3.3
16:10	3.6	north	3.3
16:20	3.6	north-northwest	2.6
16:30	3.6	north-northwest	3.0
16:40	3.5	north-northwest	3.7
16:50	3.7	north	5.0
17:00	3.5	north	6.2
17:10	3.7	north	6.7
17:20	3.5	north	7.0
17:30	3.8	north	6.2
17:40	3.6	north	6.2
17:50	3.6	north	4.5
18:00	3.6	north	6.2
18:10	3.7	north-northwest	4.2
18:20	3.5	north	4.5
18:30	3.7	north	3.3
18:40	3.4	north	3.4
18:50	3.5	north-northwest	2.8
19:00	3.7	north	4.2
19:10	3.5	north	3.4
19:20	3.5	north	3.7
19:30	3.5	north-northwest	3.4
19:40	3.6	north-northwest	3.8
19:50	3.6	north-northwest	3.8
20:00	3.6	north-northwest	3.8
20:10	3.5	north-northwest	4.1
20:20	3.6	northwest	3.3
20:30	3.6	northwest	4.9
20:40	3.6	northwest	5.9
20:50	3.6	northwest	5.2
21:00	3.6	west-northwest	4.0
21:10	3.6	northwest	2.7
21:20	3.5	north-northwest	1.9
21:30	3.6	north	1.4
21:40	3.6	north	1.6
21:50	3.6	north-northwest	2.7
22:00	3.5	north-northwest	4.2
22:10	3.6	west-northwest	2.6
22:20	3.6	northwest	3.3
22:30	3.7	northwest	3.3
22:40	3.5	northwest	3.6
22:50	3.6	west-northwest	3.2
23:00	3.6	west-northwest	2.3
23:10	3.6	west-northwest	2.3
23:20	3.6	west-northwest	2.4
23:30	3.5	northwest	2.7
23:40	3.5	northwest	3.4
23:50	3.6	northwest	4.0