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

○Information

○Measurement value list ： 2026/10/30(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	3.5	south-southwest	2.4
00:10	3.5	south	2.7
00:20	3.5	south	2.8
00:30	3.5	south-southeast	4.4
00:40	3.5	south-southeast	3.9
00:50	3.6	south	2.8
01:00	3.6	south	2.4
01:10	3.3	south	3.5
01:20	3.5	south-southwest	4.0
01:30	3.6	south-southwest	3.1
01:40	3.5	south-southwest	4.6
01:50	3.5	south-southwest	5.2
02:00	3.4	south-southwest	5.1
02:10	3.5	south-southwest	4.4
02:20	3.6	south-southwest	4.8
02:30	3.6	south-southwest	4.8
02:40	3.4	south-southwest	5.9
02:50	3.5	south-southwest	3.8
03:00	3.6	southwest	4.1
03:10	3.5	south-southwest	4.1
03:20	3.6	south-southwest	3.6
03:30	3.6	south-southwest	4.0
03:40	3.5	south	3.3
03:50	3.4	south	4.5
04:00	3.6	south	5.8
04:10	3.5	south	6.0
04:20	3.5	south	6.0
04:30	3.4	south	6.1
04:40	3.6	south	6.1
04:50	3.3	south	4.5
05:00	3.6	south-southwest	4.1
05:10	3.6	south-southwest	2.0
05:20	3.5	southwest	1.7
05:30	3.4	northwest	1.1
05:40	3.4	north-northwest	3.0
05:50	3.5	northwest	3.5
06:00	3.4	north-northwest	5.1
06:10	3.5	north-northwest	5.0
06:20	3.6	north-northwest	3.6
06:30	3.5	north-northwest	2.8
06:40	3.4	north-northwest	4.3
06:50	3.6	north	3.9
07:00	3.6	north-northwest	3.8
07:10	3.6	north	4.3
07:20	3.5	north-northwest	4.0
07:30	3.7	northwest	3.8
07:40	3.5	north-northwest	4.9
07:50	3.5	north-northwest	6.3
08:00	3.5	north-northwest	5.2
08:10	3.5	north-northwest	4.5
08:20	3.4	north	3.0
08:30	3.5	north-northeast	1.6
08:40	3.4	north-northeast	1.5
08:50	3.7	north-northeast	2.0
09:00	3.6	north	0.8
09:10	3.5	north-northwest	1.8
09:20	3.4	north-northwest	1.7
09:30	3.4	north-northwest	1.6
09:40	3.4	north-northwest	1.9
09:50	3.4	north	2.5
10:00	3.5	north	2.3
10:10	3.6	north-northwest	3.2
10:20	3.6	north	1.6
10:30	3.6	north-northwest	1.7
10:40	3.6	north-northwest	1.6
10:50	3.4	north-northwest	1.4
11:00	3.6	north	1.2
11:10	3.6	northwest	1.1
11:20	3.5	northwest	0.6
11:30	3.4	west-northwest	1.5
11:40	3.5	west-northwest	1.1
11:50	3.5	northwest	1.1
12:00	3.4	west-northwest	1.2
12:10	3.4	west-northwest	1.6
12:20	3.6	northwest	2.0
12:30	3.4	northwest	1.9
12:40	3.5	north	1.7
12:50	3.5	-	CALM
13:00	3.6	east	0.8
13:10	3.6	south	0.8
13:20	3.6	-	CALM
13:30	3.6	northwest	1.0
13:40	3.4	northwest	1.1
13:50	3.5	northwest	1.5
14:00	3.6	west	1.9
14:10	3.7	west	1.4
14:20	3.5	west-southwest	0.8
14:30	3.6	west-southwest	0.6
14:40	3.5	northwest	0.9
14:50	3.4	west-northwest	1.0
15:00	3.5	north	1.0
15:10	3.5	-	CALM
15:20	3.7	south	0.6
15:30	3.6	south-southeast	1.6
15:40	3.6	south-southeast	1.8
15:50	3.4	southeast	2.5
16:00	3.6	southeast	1.6
16:10	3.5	south-southeast	4.0
16:20	3.5	south	2.9
16:30	3.5	west-southwest	1.9
16:40	3.5	west-southwest	2.0
16:50	3.3	west	3.5
17:00	3.4	west	3.3
17:10	3.5	west-northwest	2.2
17:20	3.5	northwest	1.9
17:30	3.5	northwest	2.6
17:40	3.5	northwest	3.2
17:50	3.4	northwest	3.6
18:00	3.6	north-northwest	3.9
18:10	3.4	northwest	2.9
18:20	3.5	west	1.8
18:30	3.6	south-southwest	1.6
18:40	3.4	south	2.7
18:50	3.5	south-southwest	1.2
19:00	3.5	southwest	0.6
19:10	3.5	south-southwest	1.6
19:20	3.6	south	1.8
19:30	3.6	south	1.5
19:40	3.6	south-southeast	1.5
19:50	3.6	south-southeast	1.5
20:00	3.5	south	0.8
20:10	3.4	south-southwest	1.2
20:20	3.7	south-southwest	0.9
20:30	3.4	south	1.0
20:40	3.5	south	1.1
20:50	3.5	south-southwest	1.2
21:00	3.5	south	0.8
21:10	3.6	south-southeast	0.9
21:20	3.5	south-southeast	0.8
21:30	3.5	south	1.2
21:40	3.5	south	0.7
21:50	3.6	southeast	0.6
22:00	3.5	south	0.6
22:10	3.5	south	0.9
22:20	3.6	southeast	0.8
22:30	3.6	-	CALM
22:40	3.4	-	CALM
22:50	3.6	-	CALM
23:00	3.6	-	CALM
23:10	3.6	-	CALM
23:20	3.4	east	1.4
23:30	3.5	-	CALM
23:40	3.5	north-northwest	0.6
23:50	3.7	-	CALM