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

○Information

○Measurement value list ： 2025/05/31(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	north	8.7
00:10	3.5	north	7.3
00:20	3.7	north	5.9
00:30	3.4	north-northwest	6.2
00:40	3.6	north-northwest	8.5
00:50	3.6	north	6.2
01:00	3.6	north	8.1
01:10	3.5	north	8.1
01:20	3.8	north	8.7
01:30	3.4	north-northwest	7.6
01:40	3.7	north	7.0
01:50	3.7	north-northwest	7.7
02:00	3.6	north-northwest	7.9
02:10	3.8	north	6.0
02:20	3.6	north-northwest	7.6
02:30	3.6	north-northwest	5.7
02:40	3.5	north-northwest	7.6
02:50	3.6	north-northwest	6.8
03:00	3.6	north	6.5
03:10	3.5	north	7.0
03:20	3.4	north	5.1
03:30	3.7	north	7.3
03:40	3.6	north	5.4
03:50	3.6	north-northwest	7.3
04:00	3.5	north	6.5
04:10	3.7	north-northwest	6.2
04:20	3.6	north	6.8
04:30	3.6	north-northwest	7.4
04:40	3.6	north	7.0
04:50	3.6	north	5.9
05:00	3.6	north-northwest	6.6
05:10	3.7	north-northwest	6.6
05:20	3.5	north	5.5
05:30	3.5	north-northwest	5.2
05:40	3.5	north-northwest	6.5
05:50	3.7	north-northwest	6.5
06:00	3.5	north-northwest	6.2
06:10	3.6	north-northwest	4.8
06:20	3.6	north	8.1
06:30	3.7	north-northwest	8.2
06:40	3.5	north-northwest	7.1
06:50	3.5	north-northwest	7.0
07:00	3.7	north	7.0
07:10	3.8	north-northwest	5.9
07:20	3.8	north	5.7
07:30	3.7	north-northwest	4.5
07:40	3.8	north-northwest	5.5
07:50	3.6	north-northwest	5.4
08:00	3.4	north-northwest	8.4
08:10	3.6	north	7.3
08:20	3.5	north-northwest	6.6
08:30	3.7	north-northwest	4.8
08:40	3.7	north-northwest	6.6
08:50	3.7	north	7.3
09:00	3.6	north	7.3
09:10	3.6	north	5.7
09:20	3.6	north-northwest	5.2
09:30	3.5	north-northwest	7.0
09:40	3.5	north	8.7
09:50	3.6	north	8.1
10:00	3.5	north	8.2
10:10	3.6	north	5.9
10:20	3.7	north-northwest	6.0
10:30	3.6	north	7.1
10:40	3.6	north	9.0
10:50	3.8	north	7.1
11:00	3.7	north-northwest	8.7
11:10	3.6	north	9.3
11:20	3.5	north-northwest	6.0
11:30	3.4	north	7.4
11:40	3.5	north-northwest	6.3
11:50	3.7	north-northwest	9.0
12:00	3.4	north-northwest	5.9
12:10	3.8	north-northwest	6.8
12:20	3.6	north	6.5
12:30	3.7	north-northwest	8.7
12:40	3.6	north	6.2
12:50	3.7	-	CALM
13:00	3.6	-	CALM
13:10	3.7	-	CALM
13:20	3.6	-	CALM
13:30	3.6	west-northwest	3.0
13:40	3.7	north-northwest	6.3
13:50	3.7	north-northwest	5.2
14:00	3.7	north-northwest	3.0
14:10	3.7	-	CALM
14:20	3.7	northwest	6.2
14:30	3.5	-	CALM
14:40	3.6	-	CALM
14:50	3.6	north-northwest	9.6
15:00	3.6	northwest	7.4
15:10	3.5	north-northwest	8.7
15:20	3.6	northwest	8.5
15:30	3.5	-	CALM
15:40	3.6	north-northwest	8.8
15:50	3.5	northwest	7.7
16:00	3.6	west-northwest	5.9
16:10	3.5	northwest	6.5
16:20	3.6	north-northwest	9.0
16:30	3.6	northwest	8.8
16:40	3.6	northwest	9.8
16:50	3.6	north-northwest	11.1
17:00	3.6	north-northwest	8.7
17:10	3.7	northwest	9.2
17:20	3.6	northwest	7.0
17:30	3.5	northwest	7.9
17:40	3.7	northwest	9.8
17:50	3.7	northwest	7.7
18:00	3.5	north-northwest	10.0
18:10	3.7	north-northwest	7.9
18:20	3.5	north-northwest	8.9
18:30	3.6	-	CALM
18:40	3.6	-	CALM
18:50	3.5	north-northwest	10.0
19:00	3.7	north-northwest	5.7
19:10	3.6	north-northwest	6.2
19:20	3.8	north-northwest	6.2
19:30	3.5	north-northwest	5.4
19:40	3.6	-	CALM
19:50	3.7	-	CALM
20:00	3.6	-	CALM
20:10	3.5	-	CALM
20:20	3.7	-	CALM
20:30	3.6	north	3.5
20:40	3.6	north	7.0
20:50	3.5	north-northwest	7.9
21:00	3.6	northwest	4.9
21:10	3.7	northwest	5.9
21:20	3.7	north	8.4
21:30	3.6	northwest	7.1
21:40	3.6	northwest	8.5
21:50	3.7	north-northwest	5.9
22:00	3.6	northwest	7.3
22:10	3.6	north-northwest	8.7
22:20	3.7	-	CALM
22:30	3.5	north	7.4
22:40	3.6	north-northwest	6.2
22:50	3.5	north-northwest	8.4
23:00	3.6	north-northwest	8.7
23:10	3.6	north-northwest	7.3
23:20	3.6	north-northwest	8.4
23:30	3.8	west-northwest	8.2
23:40	3.6	north-northwest	7.0
23:50	3.8	north-northwest	8.7