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

○Information

○Measurement value list ： 2026/06/12(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	southwest	0.7
00:10	3.6	southwest	1.1
00:20	3.5	west-southwest	1.0
00:30	3.5	-	CALM
00:40	3.6	east-northeast	0.9
00:50	3.5	-	CALM
01:00	3.6	northeast	0.7
01:10	3.6	north-northeast	1.3
01:20	3.7	north-northwest	1.4
01:30	3.7	northwest	2.9
01:40	3.6	northwest	3.3
01:50	3.9	northwest	3.7
02:00	3.6	northwest	3.8
02:10	3.6	northwest	3.4
02:20	3.6	northwest	2.5
02:30	3.5	north-northwest	2.4
02:40	3.6	north-northwest	1.9
02:50	3.6	north-northwest	2.9
03:00	3.5	north-northwest	3.2
03:10	3.5	northwest	3.0
03:20	3.6	northwest	3.7
03:30	3.6	north-northwest	2.9
03:40	3.4	north-northwest	2.9
03:50	3.5	north-northwest	2.8
04:00	3.6	north	3.1
04:10	3.8	north	3.1
04:20	3.7	north	2.3
04:30	3.6	north-northwest	2.0
04:40	3.5	north-northwest	2.0
04:50	3.5	northwest	2.5
05:00	3.6	northwest	2.2
05:10	3.4	north-northwest	1.9
05:20	3.7	north	2.1
05:30	3.5	north-northwest	1.8
05:40	3.5	north	1.8
05:50	3.5	north	1.3
06:00	3.5	north-northwest	1.7
06:10	3.6	-	CALM
06:20	3.5	north	1.2
06:30	3.6	north	1.7
06:40	3.4	north	1.4
06:50	3.6	north-northwest	1.7
07:00	3.6	north	1.3
07:10	3.5	west-northwest	1.3
07:20	3.5	north-northwest	0.8
07:30	3.7	north-northeast	1.2
07:40	3.6	north-northeast	1.3
07:50	3.6	northeast	1.6
08:00	3.6	northeast	1.4
08:10	3.7	northeast	1.9
08:20	3.7	northeast	2.0
08:30	3.5	north-northeast	1.8
08:40	3.7	east-northeast	0.8
08:50	3.6	east-northeast	1.7
09:00	3.7	east	1.9
09:10	3.8	east	2.5
09:20	3.5	east-southeast	2.6
09:30	3.4	east-southeast	2.3
09:40	3.6	east-southeast	2.3
09:50	3.4	east	1.6
10:00	3.7	south	0.7
10:10	3.6	west-southwest	1.1
10:20	3.5	west-northwest	2.6
10:30	3.6	west-northwest	6.3
10:40	3.6	northwest	5.2
10:50	3.6	north-northwest	2.0
11:00	3.6	north-northeast	0.8
11:10	3.5	east-southeast	2.4
11:20	3.6	east-southeast	1.8
11:30	3.5	southeast	2.2
11:40	3.5	southwest	2.1
11:50	3.6	west-southwest	2.2
12:00	3.6	west-southwest	2.1
12:10	3.5	west	3.4
12:20	3.5	west	3.2
12:30	3.6	west	3.5
12:40	3.7	west	5.0
12:50	3.6	west-northwest	4.4
13:00	3.6	west	4.2
13:10	3.6	west	4.3
13:20	3.7	west-southwest	3.2
13:30	3.6	south	1.7
13:40	3.7	south	2.5
13:50	3.4	south-southeast	2.4
14:00	3.5	southeast	3.0
14:10	3.7	south-southeast	4.1
14:20	3.5	south-southeast	3.5
14:30	3.5	south	4.3
14:40	3.6	south-southeast	3.3
14:50	3.8	south-southeast	3.9
15:00	3.5	south-southeast	2.9
15:10	3.5	southeast	3.6
15:20	3.6	south-southeast	3.1
15:30	3.6	southeast	3.1
15:40	3.7	south-southeast	2.3
15:50	3.6	southeast	4.4
16:00	3.6	southeast	4.1
16:10	3.8	southeast	4.3
16:20	3.5	east-southeast	4.3
16:30	3.7	southeast	4.3
16:40	3.6	southeast	3.3
16:50	3.6	south-southeast	3.8
17:00	3.6	south	4.2
17:10	3.5	south-southeast	2.5
17:20	3.5	south-southeast	3.5
17:30	3.6	south-southeast	4.5
17:40	3.7	south-southeast	3.4
17:50	3.7	southeast	2.7
18:00	3.7	south	2.9
18:10	3.5	south	3.7
18:20	3.7	south-southeast	3.6
18:30	3.5	south-southeast	3.0
18:40	3.6	south	3.2
18:50	3.5	south	3.8
19:00	3.6	south	4.0
19:10	3.6	south	4.5
19:20	3.7	south	4.4
19:30	3.7	south	5.2
19:40	3.5	south-southwest	4.1
19:50	3.6	south-southwest	3.8
20:00	3.5	south-southwest	4.3
20:10	3.5	south-southwest	4.9
20:20	3.7	south	5.4
20:30	3.5	south-southwest	4.5
20:40	3.5	south-southwest	3.5
20:50	3.5	south-southwest	3.4
21:00	3.6	south	3.1
21:10	3.5	south	3.9
21:20	3.7	south	4.1
21:30	3.6	south	5.7
21:40	3.5	south-southwest	5.0
21:50	3.6	south-southwest	4.4
22:00	3.5	south-southwest	4.5
22:10	3.6	south-southwest	3.8
22:20	3.6	south	3.2
22:30	3.6	south	3.6
22:40	3.6	south	3.5
22:50	3.7	south	3.9
23:00	3.4	south	3.4
23:10	3.5	south	3.2
23:20	3.6	south	3.3
23:30	3.7	south	3.3
23:40	3.5	south	2.4
23:50	3.5	south-southwest	2.8