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

○Information

○Measurement value list ： 2026/09/24(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	south-southwest	4.6
00:10	3.6	south-southwest	3.9
00:20	3.5	south-southwest	4.6
00:30	3.7	south-southwest	5.3
00:40	3.6	south	5.4
00:50	3.5	south	4.8
01:00	3.7	south	4.7
01:10	3.6	south	5.9
01:20	3.4	south	6.2
01:30	3.5	south	5.0
01:40	3.6	south	4.4
01:50	3.6	south	4.2
02:00	3.6	south	3.5
02:10	3.5	south-southwest	4.7
02:20	3.6	south	4.9
02:30	3.5	south	4.9
02:40	3.5	south	4.4
02:50	3.5	south	3.2
03:00	3.5	south	4.3
03:10	3.6	south	4.7
03:20	3.7	south-southwest	4.0
03:30	3.4	south-southwest	3.4
03:40	3.7	southwest	3.6
03:50	3.6	southwest	2.7
04:00	3.5	southwest	2.6
04:10	3.5	south-southwest	2.2
04:20	3.7	south	2.0
04:30	3.5	south	1.6
04:40	3.5	south-southwest	2.1
04:50	3.5	south	2.8
05:00	3.6	south	2.8
05:10	3.5	south	3.5
05:20	3.7	south-southwest	3.2
05:30	3.5	south-southwest	3.0
05:40	3.6	south-southwest	2.7
05:50	3.6	south-southwest	1.6
06:00	3.4	south-southwest	2.3
06:10	3.6	south-southwest	2.5
06:20	3.7	south-southwest	1.6
06:30	3.6	southwest	1.8
06:40	3.5	southwest	1.9
06:50	3.5	southwest	2.0
07:00	3.5	southwest	2.0
07:10	3.5	southwest	2.2
07:20	3.6	south-southwest	2.0
07:30	3.5	south-southwest	1.5
07:40	3.6	south	1.1
07:50	3.6	south-southwest	1.3
08:00	3.6	south	1.5
08:10	3.6	southeast	0.6
08:20	3.4	south-southeast	1.9
08:30	3.7	south-southeast	1.9
08:40	3.5	east-southeast	1.0
08:50	3.6	north-northeast	1.8
09:00	3.5	north-northeast	1.2
09:10	3.6	north-northeast	0.8
09:20	3.6	north-northeast	1.2
09:30	3.5	north-northeast	1.7
09:40	3.6	north-northeast	2.2
09:50	3.6	north	2.0
10:00	3.6	north	2.5
10:10	3.6	north-northwest	2.2
10:20	3.7	north-northeast	1.8
10:30	3.6	north-northwest	1.5
10:40	3.6	north	1.5
10:50	3.5	northwest	1.5
11:00	3.6	north-northwest	1.6
11:10	3.9	north	3.0
11:20	3.6	north	2.6
11:30	3.6	north-northeast	2.7
11:40	3.5	northeast	3.7
11:50	3.6	north-northeast	4.1
12:00	3.5	north-northeast	4.1
12:10	3.6	northeast	4.1
12:20	3.5	northeast	4.3
12:30	3.5	northeast	3.9
12:40	3.6	northeast	4.7
12:50	3.7	northeast	4.6
13:00	3.5	northeast	5.7
13:10	3.5	northeast	4.9
13:20	3.5	northeast	4.9
13:30	3.5	north-northeast	4.2
13:40	3.6	northeast	4.4
13:50	3.6	northeast	4.0
14:00	3.4	northeast	2.5
14:10	3.5	east-northeast	2.5
14:20	3.5	east-northeast	1.8
14:30	3.7	east	1.3
14:40	3.6	east-northeast	1.3
14:50	3.5	east	1.8
15:00	3.6	southeast	1.6
15:10	3.7	east-southeast	1.4
15:20	3.6	east	1.8
15:30	3.6	southeast	1.7
15:40	3.5	east-southeast	1.2
15:50	3.5	east-southeast	0.7
16:00	3.6	east	1.8
16:10	3.5	east	2.1
16:20	3.6	east-northeast	1.7
16:30	3.5	-	CALM
16:40	3.6	-	CALM
16:50	3.5	-	CALM
17:00	3.5	northeast	1.8
17:10	3.7	northeast	1.6
17:20	3.5	east-northeast	1.1
17:30	3.6	north-northeast	0.9
17:40	3.6	east	0.6
17:50	3.5	northeast	1.6
18:00	3.5	northeast	1.7
18:10	3.6	north-northeast	1.4
18:20	3.4	northeast	0.6
18:30	3.7	northeast	0.7
18:40	3.6	-	CALM
18:50	3.6	southwest	1.0
19:00	3.6	west-southwest	0.7
19:10	3.5	west-northwest	1.7
19:20	3.6	west-northwest	3.0
19:30	3.6	northwest	2.8
19:40	3.4	west-northwest	2.7
19:50	3.8	west	4.0
20:00	3.6	west-northwest	3.5
20:10	3.5	west	3.0
20:20	3.6	west-southwest	3.9
20:30	3.6	west-northwest	3.2
20:40	3.5	west-northwest	3.8
20:50	3.6	west-northwest	2.9
21:00	3.4	north-northwest	2.3
21:10	3.5	northwest	2.0
21:20	3.6	northwest	1.9
21:30	3.6	northwest	2.1
21:40	3.5	west-northwest	1.9
21:50	3.6	west-northwest	2.4
22:00	3.6	west-northwest	3.1
22:10	3.5	west-northwest	3.4
22:20	3.5	northwest	4.2
22:30	3.5	northwest	4.4
22:40	3.4	northwest	3.2
22:50	3.7	northwest	3.2
23:00	3.6	northwest	3.5
23:10	3.6	northwest	3.4
23:20	3.6	north-northwest	2.9
23:30	3.5	northwest	2.7
23:40	3.6	northwest	3.2
23:50	3.7	north-northwest	3.3