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

○Information

○Measurement value list ： 2026/08/04(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-northeast	2.6
00:10	3.6	north-northeast	2.5
00:20	3.8	north-northeast	2.4
00:30	3.6	north-northeast	1.8
00:40	3.6	north-northeast	2.0
00:50	3.5	north-northeast	2.1
01:00	3.5	northeast	1.6
01:10	3.5	north	1.6
01:20	3.6	north	1.7
01:30	3.5	north	2.1
01:40	3.6	north	2.1
01:50	3.5	north-northeast	2.3
02:00	3.6	north	2.5
02:10	3.5	north	2.7
02:20	3.5	north	3.0
02:30	3.6	north-northeast	2.5
02:40	3.5	north-northeast	3.1
02:50	3.6	north-northeast	3.1
03:00	3.6	north-northeast	2.9
03:10	3.7	north-northeast	2.6
03:20	3.7	north-northeast	2.6
03:30	3.6	north-northeast	2.4
03:40	3.6	north-northeast	2.5
03:50	3.7	north-northeast	2.6
04:00	3.6	north	2.6
04:10	3.7	north-northeast	2.6
04:20	3.3	north-northeast	2.8
04:30	3.6	north	3.1
04:40	3.5	north	3.2
04:50	3.6	north	2.8
05:00	3.6	north-northwest	2.7
05:10	3.6	north	2.6
05:20	3.4	north-northeast	3.2
05:30	3.6	north-northeast	3.2
05:40	3.6	north-northeast	2.9
05:50	3.6	north	2.2
06:00	3.6	north	2.2
06:10	3.6	north	2.2
06:20	3.5	north	1.4
06:30	3.6	northeast	2.4
06:40	3.5	northeast	2.8
06:50	3.5	north-northeast	3.3
07:00	3.6	north-northeast	3.6
07:10	3.6	northeast	3.2
07:20	3.7	northeast	3.8
07:30	3.6	northeast	4.6
07:40	3.6	north-northeast	4.4
07:50	3.5	north-northeast	4.8
08:00	3.5	north-northeast	4.3
08:10	3.6	northeast	3.8
08:20	3.6	north-northeast	2.6
08:30	3.6	northeast	3.9
08:40	3.6	northeast	3.4
08:50	3.5	northeast	3.4
09:00	3.4	east-northeast	3.8
09:10	3.5	northeast	4.3
09:20	3.7	northeast	4.0
09:30	3.4	northeast	4.3
09:40	3.5	north-northeast	4.1
09:50	3.6	east-northeast	4.3
10:00	3.5	northeast	4.6
10:10	3.6	east-northeast	5.1
10:20	3.6	northeast	5.2
10:30	3.5	east-northeast	4.9
10:40	3.5	east-northeast	5.8
10:50	3.6	northeast	4.7
11:00	3.5	northeast	5.3
11:10	3.6	east-northeast	5.5
11:20	3.6	northeast	4.5
11:30	3.6	northeast	5.2
11:40	3.6	northeast	5.3
11:50	3.4	northeast	5.6
12:00	3.6	northeast	4.6
12:10	3.6	northeast	4.4
12:20	3.6	northeast	4.7
12:30	3.5	east-northeast	4.7
12:40	3.5	east-northeast	4.4
12:50	3.6	east-northeast	4.7
13:00	3.5	east-northeast	4.4
13:10	3.5	east-northeast	4.5
13:20	3.6	east-northeast	4.3
13:30	3.6	east	4.5
13:40	3.6	east	4.2
13:50	3.7	east	4.4
14:00	3.5	east-northeast	4.7
14:10	3.4	east-northeast	3.8
14:20	3.4	east-northeast	3.8
14:30	3.6	east-northeast	3.6
14:40	3.5	east-northeast	4.0
14:50	3.6	east-northeast	3.4
15:00	3.6	east	4.1
15:10	3.7	east-northeast	3.3
15:20	3.6	east-northeast	3.8
15:30	3.6	east-northeast	3.8
15:40	3.4	east-northeast	4.2
15:50	3.5	east-northeast	3.3
16:00	3.6	east-northeast	3.3
16:10	3.6	east-northeast	4.0
16:20	3.7	east-northeast	3.4
16:30	3.5	east-northeast	2.3
16:40	3.5	east-northeast	3.6
16:50	3.6	east-northeast	3.3
17:00	3.7	east-northeast	3.2
17:10	3.6	northeast	3.5
17:20	3.7	east-northeast	3.0
17:30	3.5	east-northeast	3.1
17:40	3.5	east-northeast	2.4
17:50	3.6	east-northeast	2.6
18:00	3.5	east	2.9
18:10	3.5	east-northeast	2.3
18:20	3.5	east-northeast	2.9
18:30	3.6	east-northeast	2.7
18:40	3.6	east-northeast	2.3
18:50	3.7	east-northeast	3.0
19:00	3.6	east-northeast	2.9
19:10	3.6	east-northeast	2.9
19:20	3.5	east	2.8
19:30	3.6	east-northeast	3.2
19:40	3.5	east	2.3
19:50	3.5	east	1.9
20:00	3.4	east-northeast	2.3
20:10	3.5	east	2.2
20:20	3.5	east	1.2
20:30	3.6	east-southeast	1.9
20:40	3.6	east-southeast	2.1
20:50	3.5	east	2.0
21:00	3.6	east	2.1
21:10	3.4	east	1.8
21:20	3.5	east-southeast	0.9
21:30	3.6	south-southeast	0.6
21:40	3.4	-	CALM
21:50	3.6	-	CALM
22:00	3.6	-	CALM
22:10	3.6	-	CALM
22:20	3.5	-	CALM
22:30	3.7	-	CALM
22:40	3.5	-	CALM
22:50	3.6	west-northwest	0.6
23:00	3.4	west-northwest	0.6
23:10	3.5	northwest	0.6
23:20	3.6	-	CALM
23:30	3.5	-	CALM
23:40	3.7	-	CALM
23:50	3.5	-	CALM