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

○Information

○Measurement value list ： 2026/08/06(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	west-northwest	1.2
00:10	3.4	northwest	0.9
00:20	3.4	west	0.8
00:30	3.6	-	-
00:40	3.5	north-northwest	1.0
00:50	3.5	north	0.6
01:00	3.6	-	CALM
01:10	3.5	north	0.7
01:20	3.5	northwest	0.8
01:30	3.5	northwest	0.9
01:40	3.5	west-northwest	1.3
01:50	3.5	west	1.1
02:00	3.4	west-northwest	0.9
02:10	3.7	west	0.9
02:20	3.4	-	-
02:30	3.5	west-northwest	0.9
02:40	3.6	west-northwest	0.9
02:50	3.7	west	0.9
03:00	3.6	west-southwest	1.0
03:10	3.6	west	0.8
03:20	3.7	-	CALM
03:30	3.5	-	CALM
03:40	3.5	west-southwest	0.6
03:50	3.6	-	CALM
04:00	3.5	-	CALM
04:10	3.5	-	CALM
04:20	3.6	north-northeast	0.9
04:30	3.5	north-northeast	0.9
04:40	3.5	north-northeast	1.3
04:50	3.4	north	1.0
05:00	3.4	north-northwest	1.6
05:10	3.5	northwest	2.3
05:20	3.5	west-northwest	2.1
05:30	3.7	northwest	2.2
05:40	3.5	northwest	2.4
05:50	3.5	northwest	1.0
06:00	3.5	north-northwest	1.3
06:10	3.5	northwest	1.7
06:20	3.5	northwest	2.0
06:30	3.5	north-northwest	1.6
06:40	3.5	north	1.2
06:50	3.5	east-northeast	0.6
07:00	3.4	north	0.8
07:10	3.5	east-northeast	1.5
07:20	3.5	north-northeast	1.3
07:30	3.7	north-northeast	1.6
07:40	3.5	northeast	1.5
07:50	3.5	north-northwest	1.7
08:00	3.6	west-northwest	1.1
08:10	3.6	north-northwest	1.0
08:20	3.7	north-northeast	0.9
08:30	3.5	northeast	2.3
08:40	3.6	northeast	1.8
08:50	3.6	east-northeast	2.3
09:00	3.5	east-northeast	2.6
09:10	3.4	east	2.2
09:20	3.7	east-northeast	2.6
09:30	3.5	east-northeast	1.7
09:40	3.7	east-northeast	2.3
09:50	3.7	east-northeast	2.8
10:00	3.6	east	2.4
10:10	3.8	east	2.7
10:20	3.6	east	2.4
10:30	3.5	east	2.9
10:40	3.6	east	2.6
10:50	3.5	southeast	1.9
11:00	3.5	east-southeast	2.7
11:10	3.7	east	2.2
11:20	3.5	southeast	2.2
11:30	3.5	east	2.8
11:40	3.6	east	3.7
11:50	3.6	east-southeast	3.6
12:00	3.5	east-southeast	4.1
12:10	3.6	southeast	4.3
12:20	3.5	southeast	4.2
12:30	3.5	southeast	3.8
12:40	3.5	east-southeast	3.6
12:50	3.5	southeast	4.6
13:00	3.5	southeast	4.8
13:10	3.6	southeast	5.5
13:20	3.6	southeast	4.6
13:30	3.5	south-southeast	4.2
13:40	3.5	south-southeast	6.3
13:50	3.6	south-southeast	5.9
14:00	3.8	south-southeast	6.0
14:10	3.6	southeast	6.3
14:20	3.5	south-southeast	7.1
14:30	3.6	south-southeast	7.4
14:40	3.4	south-southeast	7.0
14:50	3.4	southeast	5.8
15:00	3.5	south-southeast	6.7
15:10	3.6	south-southeast	7.4
15:20	3.5	south-southeast	8.0
15:30	3.6	south-southeast	8.9
15:40	3.6	south-southeast	7.5
15:50	3.5	south-southeast	8.5
16:00	3.4	south	8.1
16:10	3.5	south-southeast	8.9
16:20	3.5	south-southeast	8.3
16:30	3.7	south-southeast	8.5
16:40	3.7	south-southeast	7.8
16:50	3.6	south	7.5
17:00	3.6	south	7.5
17:10	3.6	south-southeast	6.3
17:20	3.6	south-southeast	6.2
17:30	3.4	south	7.0
17:40	3.5	south	6.9
17:50	3.5	south-southeast	6.6
18:00	3.5	south	7.0
18:10	3.5	south	5.8
18:20	3.7	south	6.1
18:30	3.6	south	6.9
18:40	3.4	south	7.2
18:50	3.6	south	7.2
19:00	3.5	south	7.6
19:10	3.6	south	6.2
19:20	3.6	south	6.5
19:30	3.7	south	6.3
19:40	3.6	south	6.9
19:50	3.6	south	6.2
20:00	3.7	south	5.6
20:10	3.5	south	6.6
20:20	3.5	south	5.7
20:30	3.5	south	4.9
20:40	3.5	south	4.7
20:50	3.5	south	4.2
21:00	3.5	south-southeast	4.1
21:10	3.6	south	4.5
21:20	3.5	south	4.5
21:30	3.4	south	5.0
21:40	3.4	south	4.7
21:50	3.6	south	4.1
22:00	3.6	south	4.6
22:10	3.5	south	5.9
22:20	3.6	south	5.8
22:30	3.6	south	6.5
22:40	3.6	south	6.0
22:50	3.5	south	5.0
23:00	3.5	south	5.3
23:10	3.4	south	6.0
23:20	3.5	south	5.7
23:30	3.7	south	6.3
23:40	3.7	south	6.1
23:50	3.7	south	5.5