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

○Information

○Measurement value list ： 2026/05/23(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	3.3
00:10	3.5	northwest	4.3
00:20	3.7	north-northwest	5.1
00:30	3.7	north-northwest	4.9
00:40	3.6	north	4.5
00:50	3.5	north	4.7
01:00	3.5	north	4.6
01:10	3.6	north-northwest	4.1
01:20	3.5	north-northwest	3.8
01:30	3.5	north-northwest	3.4
01:40	3.5	north-northwest	3.7
01:50	3.6	north-northwest	4.2
02:00	3.6	north	4.4
02:10	3.6	north	3.3
02:20	3.5	north	3.2
02:30	3.7	north	5.1
02:40	3.6	north	2.9
02:50	3.5	north-northwest	4.1
03:00	3.6	north	4.5
03:10	3.6	north	5.6
03:20	3.6	north	6.4
03:30	3.8	north	5.9
03:40	3.7	north	5.3
03:50	3.6	north-northeast	5.9
04:00	3.5	north-northeast	6.0
04:10	3.6	north-northeast	5.2
04:20	3.7	north-northeast	5.7
04:30	3.6	north	5.8
04:40	3.6	north	4.8
04:50	3.6	north	5.0
05:00	3.6	north-northwest	4.9
05:10	3.6	north-northwest	3.8
05:20	3.6	north-northeast	4.8
05:30	3.5	north-northwest	3.7
05:40	3.5	north-northwest	3.9
05:50	3.6	north-northwest	3.3
06:00	3.6	north-northeast	3.6
06:10	3.6	north	2.9
06:20	3.6	north	3.2
06:30	3.5	north	3.2
06:40	3.7	north-northwest	3.6
06:50	3.4	north	3.8
07:00	3.6	north	3.2
07:10	3.4	north-northwest	3.6
07:20	3.5	north-northwest	4.1
07:30	3.5	north	4.2
07:40	3.7	north-northwest	4.0
07:50	3.6	northwest	3.9
08:00	3.4	northwest	3.9
08:10	3.7	north-northwest	2.9
08:20	3.7	north	2.5
08:30	3.5	north-northwest	3.1
08:40	3.5	north-northeast	3.9
08:50	3.6	north-northeast	4.1
09:00	3.3	north-northeast	4.3
09:10	3.5	north-northeast	3.8
09:20	3.6	north-northeast	3.2
09:30	3.7	northeast	3.8
09:40	3.6	north-northeast	4.0
09:50	3.5	northeast	4.8
10:00	3.6	northeast	5.1
10:10	3.6	northeast	3.9
10:20	3.6	northeast	4.1
10:30	3.5	northeast	4.2
10:40	3.6	northeast	4.0
10:50	3.6	northeast	5.1
11:00	3.6	northeast	4.1
11:10	3.5	east-northeast	4.1
11:20	3.4	east-northeast	4.0
11:30	3.6	east-northeast	5.2
11:40	3.5	northeast	4.5
11:50	3.6	northeast	5.2
12:00	3.7	northeast	5.2
12:10	3.6	east-northeast	4.4
12:20	3.6	northeast	5.0
12:30	3.6	east-northeast	3.5
12:40	3.5	northeast	4.1
12:50	3.6	east-northeast	5.0
13:00	3.6	northeast	4.1
13:10	3.6	northeast	4.6
13:20	3.6	northeast	4.3
13:30	3.8	northeast	3.6
13:40	3.7	northeast	4.7
13:50	3.5	northeast	3.3
14:00	3.6	northeast	3.8
14:10	3.6	north-northeast	3.8
14:20	3.6	east-northeast	3.9
14:30	3.6	northeast	3.2
14:40	3.7	northeast	3.5
14:50	3.4	east	3.7
15:00	3.6	northeast	2.8
15:10	3.5	east-northeast	3.1
15:20	3.6	east-northeast	3.8
15:30	3.6	east-northeast	4.1
15:40	3.5	east-northeast	3.0
15:50	3.6	east-northeast	3.4
16:00	3.7	east-northeast	3.0
16:10	3.6	east-northeast	3.5
16:20	3.6	east-northeast	3.0
16:30	3.5	east-northeast	3.4
16:40	3.5	east	3.3
16:50	3.5	east-northeast	2.8
17:00	3.5	east	2.6
17:10	3.6	east-northeast	3.2
17:20	3.7	east	2.0
17:30	3.5	east	2.4
17:40	3.6	east	2.2
17:50	3.6	east-northeast	2.2
18:00	3.5	east	2.2
18:10	3.5	east	1.8
18:20	3.5	east-southeast	1.7
18:30	3.5	east-southeast	1.3
18:40	3.6	east	1.7
18:50	3.5	east-southeast	1.3
19:00	3.5	east	1.6
19:10	3.7	east-southeast	1.4
19:20	3.5	east-southeast	0.8
19:30	3.6	-	CALM
19:40	3.5	east-southeast	0.7
19:50	3.4	southeast	0.8
20:00	3.6	south-southeast	0.8
20:10	3.6	east	0.6
20:20	3.5	east-southeast	0.6
20:30	3.5	east	0.7
20:40	3.5	-	CALM
20:50	3.5	-	CALM
21:00	3.6	west	0.6
21:10	3.5	-	CALM
21:20	3.7	west	0.7
21:30	3.5	west	0.6
21:40	3.5	-	CALM
21:50	3.5	west-southwest	0.6
22:00	3.6	-	CALM
22:10	3.5	west-southwest	0.6
22:20	3.4	west-southwest	0.8
22:30	3.6	west-northwest	0.8
22:40	3.4	-	CALM
22:50	3.5	-	CALM
23:00	3.5	-	CALM
23:10	3.6	-	CALM
23:20	3.6	-	CALM
23:30	3.7	-	CALM
23:40	3.6	-	CALM
23:50	3.5	-	CALM