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

○Information

○Measurement value list ： 2025/08/25(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	3.4	north-northwest	2.3
00:10	3.6	north-northwest	2.9
00:20	3.6	north	2.2
00:30	3.6	north	1.8
00:40	3.6	west-northwest	1.4
00:50	3.4	northwest	2.1
01:00	3.5	northwest	2.2
01:10	3.6	north-northwest	1.9
01:20	3.6	north-northwest	2.5
01:30	3.6	north-northwest	1.9
01:40	3.4	north-northwest	1.1
01:50	3.5	north-northwest	1.7
02:00	3.6	northwest	2.0
02:10	3.6	northwest	1.6
02:20	3.6	north-northwest	1.8
02:30	3.5	north	0.8
02:40	3.6	north	1.1
02:50	3.5	-	CALM
03:00	3.4	northwest	0.9
03:10	3.6	northwest	1.3
03:20	3.6	-	CALM
03:30	3.5	northeast	0.7
03:40	3.5	north	0.8
03:50	3.7	north	1.6
04:00	3.5	north	1.6
04:10	3.5	north-northwest	1.6
04:20	3.6	north-northwest	2.0
04:30	3.7	northwest	1.7
04:40	3.6	north-northwest	2.0
04:50	3.5	north-northwest	2.4
05:00	3.5	north-northwest	2.0
05:10	3.5	north	1.2
05:20	3.4	north	1.5
05:30	3.6	north-northwest	1.4
05:40	3.4	north-northeast	1.3
05:50	3.6	east-northeast	4.0
06:00	3.5	northeast	1.5
06:10	3.4	northeast	2.5
06:20	3.5	north-northeast	2.0
06:30	3.6	north-northeast	2.7
06:40	3.6	northeast	3.0
06:50	3.4	northeast	2.5
07:00	3.6	north-northeast	2.3
07:10	3.6	northeast	3.1
07:20	3.5	northeast	4.3
07:30	3.6	northeast	3.4
07:40	3.7	northeast	3.2
07:50	3.7	northeast	3.0
08:00	3.5	east-northeast	3.5
08:10	3.7	east-northeast	3.0
08:20	3.4	east-northeast	4.0
08:30	3.5	east-northeast	3.7
08:40	3.4	east-northeast	3.6
08:50	3.6	northeast	3.8
09:00	3.5	east	3.5
09:10	3.5	east-northeast	3.0
09:20	3.6	east	3.7
09:30	3.5	east-northeast	3.3
09:40	3.5	east-northeast	3.9
09:50	3.5	east	3.4
10:00	3.6	east	3.3
10:10	3.6	east	3.8
10:20	3.6	east-northeast	4.0
10:30	3.6	east	3.6
10:40	3.4	east	3.7
10:50	3.8	east-southeast	4.0
11:00	3.7	east-southeast	3.4
11:10	3.6	east-northeast	4.1
11:20	3.7	east-southeast	3.5
11:30	3.6	east	3.4
11:40	3.5	east	3.6
11:50	3.5	east-southeast	4.7
12:00	3.5	east-southeast	5.5
12:10	3.7	east-southeast	4.1
12:20	3.5	east	3.7
12:30	3.6	east-northeast	4.5
12:40	3.6	east	3.6
12:50	3.5	east	3.8
13:00	3.5	east-northeast	3.9
13:10	3.5	east	3.8
13:20	3.5	east	4.2
13:30	3.7	east	4.6
13:40	3.3	east	3.4
13:50	3.7	east-northeast	4.6
14:00	3.6	east-northeast	4.0
14:10	3.5	east	3.4
14:20	3.6	east-southeast	4.1
14:30	3.6	east-southeast	4.4
14:40	3.6	east	4.1
14:50	3.6	east-southeast	3.1
15:00	3.5	east	3.8
15:10	3.5	east-southeast	3.6
15:20	3.6	east-southeast	2.6
15:30	3.6	southeast	2.7
15:40	3.6	east-southeast	2.7
15:50	3.5	east-southeast	2.6
16:00	3.7	east-southeast	2.2
16:10	3.5	east-southeast	2.1
16:20	3.6	east-southeast	2.7
16:30	3.5	east	3.1
16:40	3.5	east	2.7
16:50	3.7	east-southeast	2.3
17:00	3.6	east-southeast	3.0
17:10	3.4	east	2.8
17:20	3.6	east	2.8
17:30	3.6	east	2.7
17:40	3.5	east	2.7
17:50	3.5	east	2.3
18:00	3.6	east	3.0
18:10	3.5	east	3.0
18:20	3.7	east-southeast	2.3
18:30	3.5	east	2.4
18:40	3.6	east-southeast	2.4
18:50	3.6	east	2.3
19:00	3.5	east-southeast	3.1
19:10	3.4	east-southeast	2.2
19:20	3.6	east-southeast	2.6
19:30	3.5	east	3.5
19:40	3.5	east-southeast	2.2
19:50	3.5	east	2.5
20:00	3.4	east	2.4
20:10	3.5	east-southeast	2.3
20:20	3.8	east-southeast	2.3
20:30	3.7	east-southeast	2.4
20:40	3.5	east	1.9
20:50	3.6	east	1.6
21:00	3.5	east-southeast	2.6
21:10	3.6	east-southeast	2.2
21:20	3.3	east	1.7
21:30	3.8	east	2.0
21:40	3.6	east	1.5
21:50	3.5	east-southeast	1.1
22:00	3.6	east-southeast	1.5
22:10	3.5	east	2.0
22:20	3.7	southeast	1.2
22:30	3.4	southeast	1.0
22:40	3.5	east-southeast	1.0
22:50	3.5	southeast	0.8
23:00	3.5	-	CALM
23:10	3.5	east	0.8
23:20	3.5	east-southeast	1.0
23:30	3.6	southeast	0.6
23:40	3.7	southeast	0.7
23:50	3.5	east-northeast	0.7