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

○Information

○Measurement value list ： 2026/09/13(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	north-northwest	2.6
00:10	3.4	north-northwest	2.6
00:20	3.6	north-northwest	2.4
00:30	3.6	north-northwest	2.5
00:40	3.6	north-northwest	2.3
00:50	3.6	north-northwest	2.5
01:00	3.6	north	2.7
01:10	3.7	north	2.4
01:20	3.7	north-northwest	2.4
01:30	3.6	north	2.9
01:40	3.4	north	2.9
01:50	3.6	north-northwest	2.8
02:00	3.5	north-northwest	2.9
02:10	3.6	north-northwest	2.3
02:20	3.4	north-northwest	2.8
02:30	3.5	north	2.8
02:40	3.6	north	3.1
02:50	3.4	north-northwest	3.2
03:00	3.7	north-northwest	3.2
03:10	3.5	north-northwest	3.0
03:20	3.6	north-northwest	2.7
03:30	3.5	north-northwest	2.5
03:40	3.4	north	2.4
03:50	3.5	north-northwest	2.6
04:00	3.7	north-northwest	3.0
04:10	3.5	north-northwest	3.1
04:20	3.4	north-northwest	3.1
04:30	3.6	north-northwest	3.3
04:40	3.6	north-northwest	3.3
04:50	3.6	north-northwest	2.6
05:00	3.5	north-northwest	2.7
05:10	3.5	north-northwest	2.7
05:20	3.5	north-northwest	2.7
05:30	3.7	northwest	3.1
05:40	3.6	northwest	2.7
05:50	3.7	north-northwest	2.7
06:00	3.6	north-northwest	2.5
06:10	3.5	northwest	2.4
06:20	3.5	northwest	2.9
06:30	3.5	north-northwest	3.1
06:40	3.4	north-northwest	2.9
06:50	3.6	north-northwest	2.9
07:00	3.6	north-northwest	2.6
07:10	3.7	north-northwest	2.3
07:20	3.7	north-northwest	2.5
07:30	3.5	north	2.4
07:40	3.5	north	2.6
07:50	3.5	north	2.4
08:00	3.7	north-northwest	1.9
08:10	3.7	north-northwest	2.5
08:20	3.5	north-northwest	2.8
08:30	3.5	north-northwest	2.4
08:40	3.8	north-northwest	2.4
08:50	3.5	north-northwest	2.5
09:00	3.6	north-northwest	2.3
09:10	3.5	north-northwest	2.0
09:20	3.7	north-northwest	1.8
09:30	3.5	north-northwest	1.4
09:40	3.5	north	1.9
09:50	3.5	north-northwest	2.0
10:00	3.7	north-northeast	2.3
10:10	3.5	north-northeast	1.8
10:20	3.5	north	1.7
10:30	3.6	north	2.2
10:40	3.5	north	2.4
10:50	3.6	north	2.2
11:00	3.5	north	3.0
11:10	3.6	north	3.1
11:20	3.5	north	2.1
11:30	3.6	north-northeast	2.2
11:40	3.6	north	2.6
11:50	3.6	north	3.1
12:00	3.7	north	2.5
12:10	3.7	north-northeast	1.6
12:20	3.6	northeast	1.9
12:30	3.5	northeast	2.1
12:40	3.7	northeast	2.5
12:50	3.6	northeast	1.8
13:00	3.6	north-northeast	2.3
13:10	3.6	northeast	2.6
13:20	3.5	northeast	2.4
13:30	3.6	northeast	1.8
13:40	3.6	northeast	1.5
13:50	3.7	northeast	1.8
14:00	3.6	east-northeast	1.7
14:10	3.7	northeast	1.8
14:20	3.5	northeast	1.6
14:30	3.7	east-northeast	1.5
14:40	3.5	east	1.6
14:50	3.6	east-northeast	1.0
15:00	3.5	east-northeast	1.5
15:10	3.5	east	1.8
15:20	3.6	northeast	1.7
15:30	3.6	northeast	1.2
15:40	3.5	east	0.7
15:50	3.5	southeast	0.6
16:00	3.5	east-northeast	1.4
16:10	3.5	northeast	1.3
16:20	3.7	northeast	1.3
16:30	3.6	northeast	1.7
16:40	3.7	northeast	1.7
16:50	3.8	east-northeast	1.8
17:00	3.5	northeast	1.3
17:10	3.7	northeast	0.8
17:20	3.5	northeast	1.2
17:30	3.7	north-northeast	1.0
17:40	3.5	northeast	1.2
17:50	3.3	north-northeast	1.2
18:00	3.5	northeast	0.8
18:10	3.6	-	CALM
18:20	3.4	northeast	0.8
18:30	3.5	-	CALM
18:40	3.5	-	CALM
18:50	3.5	-	CALM
19:00	3.5	-	CALM
19:10	3.4	-	CALM
19:20	3.6	-	CALM
19:30	3.5	south	0.7
19:40	3.6	-	CALM
19:50	3.6	-	CALM
20:00	3.6	south-southwest	0.6
20:10	3.6	south-southwest	0.7
20:20	3.4	south-southwest	0.8
20:30	3.4	south-southwest	0.9
20:40	3.5	south-southwest	1.1
20:50	3.4	south-southwest	1.2
21:00	3.6	southwest	1.7
21:10	3.7	southwest	1.6
21:20	3.7	south-southwest	1.5
21:30	3.4	south-southwest	1.9
21:40	3.6	south	2.0
21:50	3.5	south	2.1
22:00	3.7	south	2.8
22:10	3.5	south	3.0
22:20	3.6	south	2.5
22:30	3.4	south-southwest	2.5
22:40	3.7	south-southwest	2.0
22:50	3.6	southwest	1.1
23:00	3.6	south-southwest	2.1
23:10	3.5	south	3.9
23:20	3.7	south	2.5
23:30	3.5	south	2.6
23:40	3.6	south	1.6
23:50	3.5	south	1.1