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

○Information

○Measurement value list ： 2026/05/24(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	northwest	0.9
00:10	3.5	west-northwest	0.6
00:20	3.5	-	CALM
00:30	3.4	-	CALM
00:40	3.5	-	CALM
00:50	3.6	-	CALM
01:00	3.4	-	CALM
01:10	3.5	north-northwest	0.9
01:20	3.6	north-northwest	1.5
01:30	3.5	northwest	2.3
01:40	3.6	northwest	1.8
01:50	3.7	west-northwest	1.2
02:00	3.6	-	CALM
02:10	3.6	north	0.7
02:20	3.7	-	CALM
02:30	3.7	-	CALM
02:40	3.5	north-northwest	0.9
02:50	3.5	northwest	1.2
03:00	3.5	west-northwest	1.6
03:10	3.8	west	3.2
03:20	3.5	west	2.2
03:30	3.4	west-northwest	2.7
03:40	3.7	northwest	2.1
03:50	3.6	northwest	1.9
04:00	3.4	north-northwest	1.1
04:10	3.5	north-northwest	1.0
04:20	3.5	north	1.4
04:30	3.7	north	1.6
04:40	3.7	northwest	2.8
04:50	3.5	west-northwest	3.1
05:00	3.5	northwest	3.3
05:10	3.7	northwest	3.1
05:20	3.7	northwest	2.5
05:30	3.6	north	1.6
05:40	3.5	north-northeast	1.4
05:50	3.7	north	1.8
06:00	3.6	northwest	2.4
06:10	3.7	north-northwest	2.2
06:20	3.8	northwest	2.3
06:30	3.5	north-northwest	2.6
06:40	3.5	northwest	2.7
06:50	3.5	northwest	2.3
07:00	3.6	north-northwest	2.7
07:10	3.7	north-northwest	1.9
07:20	3.6	north-northwest	1.8
07:30	3.5	north-northwest	1.4
07:40	3.6	north-northwest	1.1
07:50	3.6	northwest	0.9
08:00	3.6	northeast	0.9
08:10	3.7	north-northeast	1.4
08:20	3.6	northeast	1.1
08:30	3.6	east-northeast	1.1
08:40	3.6	north-northeast	2.4
08:50	3.6	north-northeast	1.8
09:00	3.7	north-northeast	1.8
09:10	3.5	north-northeast	2.3
09:20	3.6	northeast	1.7
09:30	3.6	northeast	2.3
09:40	3.6	northeast	2.3
09:50	3.5	east-northeast	2.6
10:00	3.6	northeast	2.5
10:10	3.6	east-northeast	2.3
10:20	3.5	northeast	1.9
10:30	3.5	east-northeast	2.0
10:40	3.7	east-northeast	2.5
10:50	3.6	northeast	2.6
11:00	3.6	east-northeast	2.3
11:10	3.6	east-northeast	2.3
11:20	3.6	east	2.0
11:30	3.6	east-northeast	2.9
11:40	3.6	east	2.0
11:50	3.6	east	2.3
12:00	3.5	east-southeast	2.2
12:10	3.4	east	2.1
12:20	3.6	southeast	1.8
12:30	3.6	southeast	2.2
12:40	3.7	east-southeast	1.8
12:50	3.5	east-southeast	1.7
13:00	3.5	east-southeast	2.8
13:10	3.6	southeast	3.3
13:20	3.6	southeast	3.5
13:30	3.6	southeast	3.7
13:40	3.4	southeast	2.8
13:50	3.6	southeast	3.0
14:00	3.5	southeast	2.7
14:10	3.6	southeast	2.8
14:20	3.7	south-southeast	2.6
14:30	3.6	south-southeast	2.3
14:40	3.7	south-southeast	2.4
14:50	3.4	south-southeast	2.0
15:00	3.5	south-southeast	2.8
15:10	3.6	south-southeast	3.1
15:20	3.6	south-southeast	3.5
15:30	3.5	south-southeast	4.5
15:40	3.6	south-southeast	5.0
15:50	3.5	south-southeast	4.8
16:00	3.4	south-southeast	5.2
16:10	3.6	south-southeast	5.2
16:20	3.6	south-southeast	6.0
16:30	3.6	south-southeast	5.5
16:40	3.7	south-southeast	6.7
16:50	3.7	south-southeast	6.8
17:00	3.7	south-southeast	6.3
17:10	3.7	south-southeast	6.5
17:20	3.8	south-southeast	6.3
17:30	3.6	south-southeast	6.8
17:40	3.7	south-southeast	6.5
17:50	3.6	south-southeast	6.5
18:00	3.7	south-southeast	5.2
18:10	3.7	south-southeast	5.5
18:20	3.6	south-southeast	6.4
18:30	3.6	south	5.9
18:40	3.6	south	5.6
18:50	3.7	south	5.3
19:00	3.7	south	4.6
19:10	3.5	south-southeast	4.6
19:20	3.6	south-southeast	6.0
19:30	3.6	south-southeast	5.8
19:40	3.6	south	6.2
19:50	3.6	south	6.3
20:00	3.5	south	6.4
20:10	3.7	south	5.4
20:20	3.4	south	5.7
20:30	3.6	south	6.2
20:40	3.6	south	6.7
20:50	3.6	south	6.8
21:00	3.6	south	7.6
21:10	3.7	south	6.3
21:20	3.7	south	5.3
21:30	3.5	south-southeast	5.9
21:40	3.5	south	5.8
21:50	3.5	south	5.9
22:00	3.6	south	5.9
22:10	3.6	south	5.6
22:20	3.6	south	5.6
22:30	3.6	south	5.2
22:40	3.7	south	5.3
22:50	3.6	south	4.7
23:00	3.5	south	4.9
23:10	3.4	south	4.8
23:20	3.6	south	5.3
23:30	3.6	south	5.7
23:40	3.5	south	5.0
23:50	3.5	south-southeast	4.7