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

○Information

○Measurement value list ： 2026/09/28(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	3.3	north-northwest	0.9
00:10	3.4	north-northwest	0.6
00:20	3.6	-	CALM
00:30	3.7	-	CALM
00:40	3.6	-	CALM
00:50	3.4	-	CALM
01:00	3.6	-	CALM
01:10	3.4	-	CALM
01:20	3.5	east	0.6
01:30	3.7	east-southeast	0.8
01:40	3.6	east-southeast	1.1
01:50	3.6	east	1.0
02:00	3.5	east	0.7
02:10	3.7	-	CALM
02:20	3.6	-	CALM
02:30	3.7	east-northeast	1.0
02:40	3.6	east-northeast	0.7
02:50	3.6	south	1.3
03:00	3.5	south-southeast	1.2
03:10	3.6	south	1.4
03:20	3.6	south	2.5
03:30	3.4	south	1.9
03:40	3.6	south	1.9
03:50	3.6	south-southeast	3.0
04:00	3.6	south-southeast	3.4
04:10	3.6	south	2.8
04:20	3.6	south-southeast	3.2
04:30	3.5	south-southeast	3.5
04:40	3.5	south-southeast	3.4
04:50	3.5	south-southeast	3.5
05:00	3.6	south-southeast	2.6
05:10	3.7	south-southeast	1.3
05:20	3.5	south-southeast	1.8
05:30	3.5	south-southeast	3.1
05:40	3.5	south	2.6
05:50	3.5	south-southwest	1.3
06:00	3.6	south	1.0
06:10	3.6	south-southeast	2.4
06:20	3.7	south	4.3
06:30	3.6	south	5.0
06:40	3.5	south	4.5
06:50	3.5	south-southeast	4.5
07:00	3.6	south	4.0
07:10	3.6	south	3.9
07:20	3.7	south-southeast	4.3
07:30	3.6	south	5.2
07:40	3.7	south	5.3
07:50	3.5	south	6.4
08:00	3.6	south	4.8
08:10	3.5	south	3.9
08:20	3.7	south	3.6
08:30	3.6	south-southeast	3.7
08:40	3.6	south-southeast	3.8
08:50	3.6	south-southeast	4.3
09:00	3.6	south-southeast	4.4
09:10	3.6	south	5.9
09:20	3.6	south	4.5
09:30	3.6	south	4.2
09:40	3.5	south	1.6
09:50	3.5	south	3.1
10:00	3.6	south	4.1
10:10	3.5	south	3.6
10:20	3.5	south	2.8
10:30	3.5	south-southwest	2.6
10:40	3.6	south-southeast	2.9
10:50	3.7	south-southeast	2.2
11:00	3.5	south-southeast	2.7
11:10	3.6	south-southeast	4.7
11:20	3.5	south-southeast	5.4
11:30	3.7	south-southeast	6.2
11:40	3.6	south-southeast	5.9
11:50	3.6	south	5.3
12:00	3.5	south	3.9
12:10	3.6	south-southeast	3.0
12:20	3.7	east-northeast	0.6
12:30	3.7	north-northeast	2.0
12:40	3.5	north	1.8
12:50	3.6	north	1.5
13:00	3.6	north	1.8
13:10	3.5	north	1.8
13:20	3.6	north	1.5
13:30	3.5	-	-
13:40	3.6	-	-
13:50	3.6	-	-
14:00	3.5	-	-
14:10	3.6	-	-
14:20	3.5	-	-
14:30	3.5	-	-
14:40	3.6	-	-
14:50	3.5	-	-
15:00	3.6	-	-
15:10	3.6	-	-
15:20	3.6	-	-
15:30	3.5	-	-
15:40	3.5	-	-
15:50	3.6	-	-
16:00	3.6	-	-
16:10	3.6	-	-
16:20	3.7	-	-
16:30	3.6	-	-
16:40	3.5	-	-
16:50	3.5	-	-
17:00	3.5	-	-
17:10	3.7	-	-
17:20	3.5	-	-
17:30	3.5	-	-
17:40	3.7	-	-
17:50	3.5	-	-
18:00	3.4	-	-
18:10	3.7	-	-
18:20	3.5	-	-
18:30	3.8	-	-
18:40	3.5	-	-
18:50	3.6	-	-
19:00	3.7	-	-
19:10	3.5	-	-
19:20	3.5	-	-
19:30	3.6	-	-
19:40	3.5	-	-
19:50	3.6	-	-
20:00	3.5	-	-
20:10	3.7	-	-
20:20	3.4	-	-
20:30	3.6	-	-
20:40	3.6	-	-
20:50	3.4	-	-
21:00	3.5	-	-
21:10	3.6	-	-
21:20	3.7	-	-
21:30	3.6	-	-
21:40	3.5	-	-
21:50	3.5	-	-
22:00	3.7	-	-
22:10	3.6	-	-
22:20	3.4	-	-
22:30	3.5	-	-
22:40	3.5	-	-
22:50	3.7	-	-
23:00	3.5	-	-
23:10	3.6	-	-
23:20	3.7	-	-
23:30	3.7	-	-
23:40	3.7	-	-
23:50	3.5	-	-