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

○Information

○Measurement value list ： 2025/08/26(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	3.7	-	CALM
00:10	3.4	west-northwest	0.7
00:20	3.7	west-northwest	1.1
00:30	3.6	northwest	0.9
00:40	3.6	north-northwest	0.9
00:50	3.6	north-northeast	0.8
01:00	3.5	west-northwest	1.0
01:10	3.6	west-southwest	0.8
01:20	3.6	north-northeast	1.1
01:30	3.5	north-northeast	1.1
01:40	3.5	northeast	0.8
01:50	3.4	north	0.7
02:00	3.4	north-northeast	1.0
02:10	3.6	north-northwest	0.8
02:20	3.6	northwest	1.8
02:30	3.7	northwest	2.4
02:40	3.7	northwest	2.0
02:50	3.6	northwest	1.5
03:00	3.5	northwest	1.0
03:10	3.7	north-northwest	1.1
03:20	3.5	north-northwest	0.9
03:30	3.5	north-northeast	1.4
03:40	3.6	north-northwest	1.3
03:50	3.5	northwest	2.4
04:00	3.6	northwest	2.2
04:10	3.5	northwest	2.4
04:20	3.7	north-northwest	2.3
04:30	3.7	northwest	1.9
04:40	3.5	northwest	1.4
04:50	3.6	northwest	1.7
05:00	3.6	west-northwest	1.9
05:10	3.8	west-northwest	1.5
05:20	3.5	northwest	1.2
05:30	3.6	northwest	0.9
05:40	3.7	west-northwest	0.7
05:50	3.5	north-northwest	1.1
06:00	3.5	north-northwest	1.9
06:10	3.5	north-northwest	1.7
06:20	3.4	north-northwest	2.0
06:30	3.5	north-northwest	1.7
06:40	3.5	northwest	1.4
06:50	3.6	west-northwest	0.9
07:00	3.6	west-northwest	0.6
07:10	3.6	-	CALM
07:20	3.6	-	CALM
07:30	3.7	-	CALM
07:40	3.5	east	1.7
07:50	3.6	east	1.7
08:00	3.6	east-southeast	1.5
08:10	3.5	east	1.9
08:20	3.4	east	1.8
08:30	3.6	east	1.5
08:40	3.6	east-southeast	1.6
08:50	3.6	east	1.9
09:00	3.5	east-southeast	2.2
09:10	3.5	east-southeast	2.2
09:20	3.6	east	2.7
09:30	3.6	east-southeast	3.4
09:40	3.6	southeast	3.2
09:50	3.7	east-southeast	4.0
10:00	3.6	east-southeast	4.2
10:10	3.7	southeast	4.0
10:20	3.5	east-southeast	3.9
10:30	3.5	east-southeast	4.1
10:40	3.7	southeast	4.2
10:50	3.6	southeast	4.8
11:00	3.4	east-southeast	5.0
11:10	3.7	southeast	4.6
11:20	3.4	southeast	5.5
11:30	3.6	east-southeast	4.1
11:40	3.6	southeast	4.3
11:50	3.4	southeast	4.2
12:00	3.5	south-southeast	5.1
12:10	3.5	south-southeast	5.7
12:20	3.5	east-southeast	5.8
12:30	3.6	southeast	4.9
12:40	3.6	southeast	5.3
12:50	3.3	southeast	5.4
13:00	3.6	southeast	4.5
13:10	3.7	southeast	4.6
13:20	3.7	south-southeast	5.1
13:30	3.5	southeast	4.5
13:40	3.5	south-southeast	5.4
13:50	3.4	south-southeast	4.9
14:00	3.6	south-southeast	5.6
14:10	3.6	south-southeast	5.6
14:20	3.6	south-southeast	5.1
14:30	3.4	south-southeast	5.3
14:40	3.6	southeast	4.8
14:50	3.5	south-southeast	5.0
15:00	3.7	south-southeast	5.4
15:10	3.5	south-southeast	5.9
15:20	3.5	south	5.8
15:30	3.4	south-southeast	6.0
15:40	3.6	south-southeast	5.6
15:50	3.4	south	6.5
16:00	3.7	south	5.0
16:10	3.6	south-southeast	5.3
16:20	3.6	south-southeast	5.1
16:30	3.5	south-southeast	5.0
16:40	3.5	south-southeast	5.4
16:50	3.5	south-southeast	5.0
17:00	3.5	south-southeast	5.9
17:10	3.6	south-southeast	6.4
17:20	3.6	south	5.5
17:30	3.6	south-southeast	5.6
17:40	3.6	south	5.6
17:50	3.6	south-southeast	5.6
18:00	3.6	south	5.3
18:10	3.5	south	6.1
18:20	3.6	south	5.7
18:30	3.5	south	5.2
18:40	3.4	south	5.5
18:50	3.5	south	4.7
19:00	3.7	south	5.1
19:10	3.3	south	4.7
19:20	3.6	south	4.8
19:30	3.7	south	4.7
19:40	3.6	south	5.5
19:50	3.6	south	5.8
20:00	3.6	south	6.2
20:10	3.5	south	5.3
20:20	3.6	south	5.0
20:30	3.6	south	4.8
20:40	3.6	south	4.6
20:50	3.5	south	3.9
21:00	3.5	south	4.6
21:10	3.5	south	4.0
21:20	3.5	south	4.0
21:30	3.5	south	4.0
21:40	3.7	south	3.8
21:50	3.7	south	4.1
22:00	3.6	south	4.0
22:10	3.7	south	4.2
22:20	3.5	south	4.4
22:30	3.4	south-southwest	5.6
22:40	3.5	south-southwest	4.6
22:50	3.6	south-southwest	4.0
23:00	3.5	south-southwest	4.2
23:10	3.5	south	3.5
23:20	3.7	south	3.3
23:30	3.4	south	3.0
23:40	3.6	southwest	3.9
23:50	3.5	southwest	5.0