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

○Information

○Measurement value list ： 2026/01/15(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	east-northeast	1.0
00:10	3.7	-	CALM
00:20	3.6	northeast	0.6
00:30	3.7	east	0.8
00:40	3.9	southeast	0.8
00:50	3.8	southeast	1.1
01:00	3.7	south	0.8
01:10	3.6	southwest	1.3
01:20	3.7	south-southwest	1.7
01:30	3.6	southwest	2.5
01:40	3.7	southwest	2.4
01:50	3.7	south	2.8
02:00	3.8	south-southwest	3.3
02:10	3.7	southwest	2.8
02:20	3.9	south-southwest	3.1
02:30	3.8	south-southwest	1.9
02:40	3.7	south	1.3
02:50	3.8	southwest	2.5
03:00	3.9	southwest	2.0
03:10	3.6	west-southwest	1.8
03:20	3.7	south	1.2
03:30	3.7	south-southwest	1.9
03:40	3.7	south-southwest	1.9
03:50	3.6	southwest	2.7
04:00	3.7	southwest	1.3
04:10	3.7	west-southwest	2.0
04:20	3.7	southwest	2.6
04:30	3.9	west	1.7
04:40	3.7	southwest	0.7
04:50	3.7	west-southwest	0.7
05:00	3.5	southeast	2.0
05:10	3.8	southeast	1.4
05:20	3.8	east-southeast	1.7
05:30	3.8	south-southwest	2.2
05:40	3.8	south	2.1
05:50	3.9	south	3.0
06:00	3.7	south	3.5
06:10	3.8	south-southwest	3.5
06:20	3.7	south-southwest	3.5
06:30	3.7	south-southwest	5.2
06:40	3.7	south-southwest	4.2
06:50	3.7	south-southwest	4.2
07:00	3.8	south	3.1
07:10	3.9	south	4.2
07:20	4.0	south	5.0
07:30	3.7	south	4.8
07:40	3.8	south	5.0
07:50	4.0	south	3.7
08:00	3.7	south-southeast	3.9
08:10	3.7	south-southeast	3.9
08:20	3.7	south	3.7
08:30	3.9	south-southeast	2.7
08:40	3.7	south	2.3
08:50	3.7	south-southeast	3.8
09:00	3.7	south	3.0
09:10	3.8	south-southeast	2.6
09:20	3.7	south-southeast	1.8
09:30	3.8	south	1.1
09:40	3.7	south-southwest	1.2
09:50	3.9	south-southeast	0.9
10:00	3.9	south	1.9
10:10	3.7	south	2.2
10:20	3.7	south	1.9
10:30	3.8	southwest	3.4
10:40	3.7	south-southwest	2.0
10:50	3.8	south-southwest	2.4
11:00	3.8	south-southeast	3.1
11:10	3.9	southeast	2.8
11:20	3.8	southwest	4.3
11:30	3.7	west-southwest	4.7
11:40	3.7	west-southwest	4.2
11:50	4.0	southwest	3.3
12:00	3.8	south-southwest	4.5
12:10	3.8	southwest	4.4
12:20	3.7	southwest	4.0
12:30	3.7	southwest	6.0
12:40	3.6	west-southwest	6.0
12:50	3.7	southwest	4.9
13:00	3.8	southwest	4.6
13:10	3.8	southwest	3.8
13:20	4.0	south-southwest	4.2
13:30	4.0	southwest	3.9
13:40	3.6	southwest	4.8
13:50	3.7	southwest	4.3
14:00	3.6	southwest	2.7
14:10	3.6	southeast	4.6
14:20	3.6	southeast	5.1
14:30	3.8	south-southeast	5.1
14:40	3.7	southeast	4.8
14:50	3.7	south-southeast	3.5
15:00	3.8	southeast	3.5
15:10	3.7	south-southeast	4.5
15:20	3.6	south-southeast	5.9
15:30	3.7	south-southeast	5.3
15:40	3.7	south	5.9
15:50	3.8	south	5.7
16:00	3.7	south	5.0
16:10	3.7	south	5.6
16:20	3.8	south	6.0
16:30	3.8	south	6.3
16:40	3.7	south	7.2
16:50	3.9	south	6.3
17:00	3.7	south	6.2
17:10	3.8	south	6.0
17:20	3.6	south	6.0
17:30	3.7	south	4.5
17:40	3.7	south-southwest	3.4
17:50	3.8	south-southwest	3.6
18:00	3.7	south	3.5
18:10	3.8	south	3.3
18:20	3.7	south	2.7
18:30	3.5	south-southeast	2.7
18:40	3.8	south-southeast	1.8
18:50	3.6	south-southeast	2.2
19:00	3.8	south-southeast	1.8
19:10	3.7	south-southwest	2.3
19:20	3.6	south	2.9
19:30	3.6	south	2.5
19:40	3.8	south-southwest	5.1
19:50	3.8	south	4.4
20:00	3.8	south-southwest	5.1
20:10	3.9	south	4.9
20:20	3.7	south	4.7
20:30	3.6	south	3.7
20:40	3.8	south	2.8
20:50	3.9	south-southwest	2.2
21:00	3.9	southwest	1.8
21:10	3.8	west-northwest	1.1
21:20	3.6	west-northwest	1.4
21:30	3.7	northwest	2.3
21:40	3.7	northwest	3.5
21:50	3.8	north-northwest	3.5
22:00	3.8	north-northwest	2.6
22:10	3.7	north	1.4
22:20	3.9	north-northeast	1.7
22:30	3.6	east	1.0
22:40	3.7	east-northeast	1.2
22:50	3.9	east	1.3
23:00	3.7	east-southeast	2.6
23:10	3.6	east-northeast	1.9
23:20	3.8	north	2.5
23:30	3.6	north	3.3
23:40	3.8	north	3.3
23:50	3.7	northwest	5.9