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

○Information

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