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

○Information

○Measurement value list ： 2026/08/24(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	3.4	south	2.3
00:10	3.5	south-southwest	2.0
00:20	3.6	south-southwest	2.2
00:30	3.5	south-southwest	2.0
00:40	3.6	south-southwest	1.6
00:50	3.7	south	0.8
01:00	3.6	south-southwest	1.9
01:10	3.4	south-southwest	2.4
01:20	3.4	south-southwest	2.5
01:30	3.7	south-southwest	2.3
01:40	3.7	south-southwest	3.0
01:50	3.5	south-southwest	3.4
02:00	3.6	south-southwest	3.2
02:10	3.7	south	2.7
02:20	3.5	south	2.2
02:30	3.5	south	3.0
02:40	3.6	south	2.6
02:50	3.5	south	3.0
03:00	3.4	south-southeast	2.5
03:10	3.7	south	2.4
03:20	3.4	south	0.8
03:30	3.6	north-northeast	0.7
03:40	3.5	east	0.7
03:50	3.6	-	CALM
04:00	3.6	southeast	1.6
04:10	3.5	south-southeast	1.7
04:20	3.5	south-southeast	1.8
04:30	3.6	southeast	1.3
04:40	3.5	southeast	1.1
04:50	3.6	southeast	1.0
05:00	3.6	-	CALM
05:10	3.6	-	CALM
05:20	3.5	-	CALM
05:30	3.4	north-northeast	0.6
05:40	3.6	-	CALM
05:50	3.5	north-northwest	0.7
06:00	3.5	north-northeast	0.6
06:10	3.4	-	CALM
06:20	3.5	north	0.6
06:30	3.4	north-northwest	0.6
06:40	3.5	north	0.9
06:50	3.6	-	CALM
07:00	3.4	east-southeast	0.6
07:10	3.5	-	CALM
07:20	3.5	-	CALM
07:30	3.5	east	1.0
07:40	3.5	northeast	1.3
07:50	3.4	northeast	1.2
08:00	3.6	north-northeast	0.6
08:10	3.6	northeast	0.8
08:20	3.5	west-northwest	0.8
08:30	3.5	east-southeast	1.0
08:40	3.5	east-southeast	1.5
08:50	3.6	east-southeast	1.1
09:00	3.6	southeast	1.9
09:10	3.5	east	2.2
09:20	3.6	east	2.6
09:30	3.7	east-southeast	2.4
09:40	3.5	east-southeast	2.4
09:50	3.4	east-southeast	2.4
10:00	3.7	southeast	2.3
10:10	3.4	southeast	2.5
10:20	3.4	southeast	2.8
10:30	3.7	southeast	2.5
10:40	3.6	south-southeast	2.9
10:50	3.5	southeast	3.3
11:00	3.5	southeast	3.7
11:10	3.6	southeast	3.9
11:20	3.5	south	3.6
11:30	3.6	south-southeast	4.4
11:40	3.6	south-southeast	4.4
11:50	3.7	southeast	4.2
12:00	3.6	south-southeast	4.0
12:10	3.5	south-southeast	4.2
12:20	3.6	southeast	4.0
12:30	3.5	south-southeast	3.8
12:40	3.4	south-southeast	4.3
12:50	3.5	south-southeast	4.7
13:00	3.5	south-southeast	4.1
13:10	3.5	-	-
13:20	3.5	-	-
13:30	3.5	-	-
13:40	3.4	-	-
13:50	3.5	-	-
14:00	3.5	-	-
14:10	3.5	-	-
14:20	3.6	-	-
14:30	3.7	-	-
14:40	3.4	-	-
14:50	3.5	-	-
15:00	3.6	-	-
15:10	3.5	-	-
15:20	3.5	-	-
15:30	3.5	-	-
15:40	3.6	-	-
15:50	3.4	-	-
16:00	3.4	-	-
16:10	3.5	-	-
16:20	3.5	-	-
16:30	3.5	-	-
16:40	3.6	-	-
16:50	3.5	-	-
17:00	3.5	-	-
17:10	3.6	-	-
17:20	3.4	-	-
17:30	3.5	-	-
17:40	3.6	-	-
17:50	3.2	south-southwest	4.7
18:00	3.5	south-southwest	4.5
18:10	3.5	south-southwest	4.0
18:20	3.6	south-southwest	4.3
18:30	3.4	south-southwest	4.2
18:40	3.6	southwest	4.1
18:50	3.5	southwest	3.2
19:00	3.6	southwest	3.4
19:10	3.5	southwest	5.3
19:20	3.7	southwest	4.9
19:30	3.5	southwest	5.0
19:40	3.5	southwest	3.6
19:50	3.6	south-southwest	2.9
20:00	3.7	south-southwest	3.5
20:10	3.6	south	3.2
20:20	3.5	south	3.8
20:30	3.5	south	3.0
20:40	3.8	south-southeast	2.4
20:50	3.6	south	3.4
21:00	3.5	south	4.0
21:10	3.6	south	4.5
21:20	3.6	south-southwest	3.2
21:30	3.6	south	3.3
21:40	3.6	south	3.6
21:50	3.6	south-southwest	3.0
22:00	3.6	south-southwest	3.4
22:10	3.6	south-southwest	2.7
22:20	3.7	south-southwest	2.5
22:30	3.5	south-southwest	2.5
22:40	3.6	southwest	2.0
22:50	3.6	southwest	2.6
23:00	3.4	south-southwest	2.0
23:10	3.6	south-southwest	1.6
23:20	3.5	southwest	1.8
23:30	3.6	south	1.3
23:40	3.6	northeast	1.0
23:50	3.6	east-northeast	1.3