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

○Information

○Measurement value list ： 2026/05/27(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	3.8
00:10	3.5	south	3.9
00:20	3.6	south-southwest	3.8
00:30	3.7	south-southwest	3.2
00:40	3.7	south-southwest	3.0
00:50	3.5	south-southwest	2.3
01:00	3.5	south-southwest	2.0
01:10	3.5	south-southwest	1.7
01:20	3.5	south	2.0
01:30	3.5	south	2.0
01:40	3.4	south-southwest	1.3
01:50	3.6	southwest	1.5
02:00	3.4	south	1.6
02:10	3.6	south	1.8
02:20	3.7	south	2.1
02:30	3.5	south	2.0
02:40	3.7	south	1.8
02:50	3.6	south-southeast	2.5
03:00	3.5	south-southeast	3.4
03:10	3.5	south	4.2
03:20	3.7	south	4.1
03:30	3.6	south	4.0
03:40	3.6	south-southeast	3.4
03:50	3.4	south	3.7
04:00	3.6	south	3.3
04:10	3.6	south	3.1
04:20	3.5	south	2.8
04:30	3.5	south-southeast	3.5
04:40	3.6	south-southeast	3.5
04:50	3.4	south-southeast	3.2
05:00	3.5	south-southeast	2.8
05:10	3.5	south-southeast	3.6
05:20	3.5	south	3.7
05:30	3.5	south	3.5
05:40	3.5	south	4.2
05:50	3.6	south	4.0
06:00	3.5	south	3.9
06:10	3.6	south-southwest	3.4
06:20	3.5	south-southwest	2.8
06:30	3.7	south-southwest	2.0
06:40	3.5	east-southeast	1.4
06:50	3.6	east-southeast	1.5
07:00	3.6	east-southeast	2.2
07:10	3.6	southeast	2.6
07:20	3.5	south-southeast	3.3
07:30	3.5	southeast	3.6
07:40	3.6	southeast	3.2
07:50	3.4	south-southeast	2.9
08:00	3.7	south-southeast	2.7
08:10	3.5	southeast	1.5
08:20	3.6	southeast	2.1
08:30	3.6	southeast	2.6
08:40	3.5	southeast	2.5
08:50	3.6	southeast	1.9
09:00	3.6	east-southeast	2.5
09:10	3.6	east	3.8
09:20	3.7	east-southeast	3.3
09:30	3.7	east	2.8
09:40	3.7	east	3.4
09:50	3.6	east	3.3
10:00	3.5	east	3.0
10:10	3.7	east	2.7
10:20	3.7	east	3.2
10:30	3.6	east-northeast	3.5
10:40	3.8	east-northeast	3.3
10:50	3.6	east-northeast	3.0
11:00	3.6	northeast	2.9
11:10	3.5	east-northeast	2.4
11:20	3.5	east-northeast	2.8
11:30	3.7	east-northeast	2.5
11:40	3.7	east	2.8
11:50	3.7	east-northeast	3.2
12:00	3.7	east	2.8
12:10	3.7	east-northeast	2.5
12:20	3.6	east	2.8
12:30	3.6	east-northeast	2.7
12:40	3.7	east	2.4
12:50	3.5	east-southeast	3.0
13:00	3.5	east-southeast	2.8
13:10	3.6	east	3.1
13:20	3.6	east	3.2
13:30	3.6	east	3.1
13:40	3.6	east-southeast	3.1
13:50	3.6	east	3.2
14:00	3.6	east-southeast	2.7
14:10	3.8	east-southeast	2.9
14:20	3.7	east-southeast	2.5
14:30	3.5	east	2.2
14:40	3.7	east-southeast	1.9
14:50	3.5	southeast	2.1
15:00	3.6	south-southeast	2.2
15:10	3.5	southeast	2.0
15:20	3.6	east	2.8
15:30	3.5	east-southeast	2.1
15:40	3.6	east-southeast	2.1
15:50	3.6	southeast	2.2
16:00	3.7	east-southeast	2.7
16:10	3.6	east-southeast	3.1
16:20	3.6	southeast	2.5
16:30	3.5	south-southeast	2.1
16:40	3.5	south-southeast	3.7
16:50	3.6	southeast	3.4
17:00	3.6	southeast	2.6
17:10	3.6	southeast	2.9
17:20	3.5	southeast	2.7
17:30	3.6	southeast	2.1
17:40	3.6	south-southeast	2.1
17:50	3.6	southeast	1.4
18:00	3.5	southeast	1.6
18:10	3.4	south-southeast	1.8
18:20	3.7	southeast	2.2
18:30	3.6	south-southeast	1.5
18:40	3.5	south-southeast	2.0
18:50	3.6	south-southeast	2.3
19:00	3.4	south-southeast	2.0
19:10	3.7	south-southeast	1.8
19:20	3.8	south-southeast	1.8
19:30	3.6	south-southeast	1.9
19:40	3.6	southeast	1.6
19:50	3.6	east	1.7
20:00	3.8	east	2.2
20:10	3.5	east-northeast	1.1
20:20	3.6	north	1.0
20:30	3.6	north-northwest	0.7
20:40	3.5	north-northwest	0.7
20:50	3.6	north-northeast	0.9
21:00	3.4	north-northwest	0.7
21:10	3.6	north	0.8
21:20	3.6	north-northwest	0.8
21:30	3.5	north-northwest	0.6
21:40	3.7	-	CALM
21:50	3.5	northwest	1.2
22:00	3.5	northwest	1.5
22:10	3.6	north	1.3
22:20	3.5	north-northwest	1.8
22:30	3.7	west-northwest	2.0
22:40	3.6	northwest	2.5
22:50	3.5	north-northwest	1.5
23:00	3.7	north-northwest	1.1
23:10	3.5	north-northwest	1.3
23:20	3.6	north-northwest	1.2
23:30	3.6	north-northwest	0.8
23:40	3.5	-	CALM
23:50	3.6	north-northwest	0.7