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

○Information

○Measurement value list ： 2026/10/09(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	west-northwest	4.4
00:10	3.3	west-northwest	4.2
00:20	3.4	west-northwest	3.1
00:30	3.3	west-northwest	3.1
00:40	3.5	west-northwest	2.8
00:50	3.5	west	2.3
01:00	3.4	west-northwest	2.8
01:10	3.4	west-northwest	3.0
01:20	3.4	west-northwest	3.2
01:30	3.5	northwest	3.2
01:40	3.6	northwest	4.2
01:50	3.5	northwest	3.5
02:00	3.5	northwest	4.7
02:10	3.6	northwest	5.6
02:20	3.5	northwest	5.1
02:30	3.5	northwest	5.5
02:40	3.5	northwest	4.5
02:50	3.6	northwest	4.7
03:00	3.3	northwest	4.8
03:10	3.5	northwest	4.3
03:20	3.4	north-northwest	4.3
03:30	3.6	northwest	3.9
03:40	3.5	northwest	4.3
03:50	3.4	northwest	3.5
04:00	3.4	northwest	3.4
04:10	3.5	northwest	3.6
04:20	3.6	northwest	3.3
04:30	3.7	north-northwest	3.4
04:40	3.5	northwest	3.4
04:50	3.3	northwest	3.4
05:00	3.6	northwest	3.2
05:10	3.5	northwest	3.0
05:20	3.5	north-northwest	3.0
05:30	3.5	northwest	2.8
05:40	3.6	northwest	2.6
05:50	3.5	northwest	2.7
06:00	3.6	northwest	2.8
06:10	3.5	northwest	2.0
06:20	3.6	northwest	1.8
06:30	3.6	northwest	1.7
06:40	3.5	northwest	1.6
06:50	3.5	northwest	1.2
07:00	3.5	northwest	1.7
07:10	3.4	northwest	1.4
07:20	3.4	northwest	1.6
07:30	3.5	northwest	1.5
07:40	3.5	north-northwest	1.8
07:50	3.6	north	1.7
08:00	3.5	northwest	1.5
08:10	3.4	north-northwest	1.7
08:20	3.6	north	2.1
08:30	3.6	north	2.2
08:40	3.4	north	2.5
08:50	3.4	north	2.2
09:00	3.6	northeast	2.6
09:10	3.6	northeast	2.1
09:20	3.5	northeast	2.5
09:30	3.5	northeast	3.6
09:40	3.5	northeast	2.6
09:50	3.6	northeast	3.5
10:00	3.4	northeast	3.2
10:10	3.6	northeast	3.6
10:20	3.4	northeast	3.5
10:30	3.5	northeast	4.2
10:40	3.5	northeast	4.2
10:50	3.7	east-northeast	3.1
11:00	3.4	northeast	4.3
11:10	3.4	northeast	3.4
11:20	3.5	northeast	3.9
11:30	3.4	east-northeast	3.9
11:40	3.5	northeast	4.6
11:50	3.4	east-northeast	3.6
12:00	3.5	east-northeast	4.0
12:10	3.4	east-northeast	3.3
12:20	3.5	east-northeast	3.3
12:30	3.5	east-northeast	3.7
12:40	3.4	east-northeast	4.0
12:50	3.5	east	2.9
13:00	3.5	northeast	3.5
13:10	3.5	northeast	2.6
13:20	3.3	east-northeast	3.1
13:30	3.6	east-northeast	3.1
13:40	3.4	east-northeast	2.2
13:50	3.6	east-northeast	3.1
14:00	3.5	east	2.4
14:10	3.5	east	2.3
14:20	3.5	east	2.4
14:30	3.6	east	2.6
14:40	3.5	southeast	2.9
14:50	3.5	east	2.3
15:00	3.5	east	1.5
15:10	3.4	east	1.8
15:20	3.3	east-southeast	2.0
15:30	3.4	east	2.1
15:40	3.5	east-northeast	2.1
15:50	3.6	east-southeast	1.8
16:00	3.6	east-southeast	1.4
16:10	3.6	south-southeast	1.4
16:20	3.5	east-southeast	0.9
16:30	3.5	-	CALM
16:40	3.4	-	CALM
16:50	3.5	-	CALM
17:00	3.5	-	CALM
17:10	3.5	-	CALM
17:20	3.5	-	CALM
17:30	3.6	west-southwest	0.7
17:40	3.6	west	0.8
17:50	3.6	-	CALM
18:00	3.5	-	CALM
18:10	3.4	-	CALM
18:20	3.4	north-northeast	0.7
18:30	3.5	north-northeast	0.7
18:40	3.4	-	CALM
18:50	3.5	east-northeast	0.9
19:00	3.6	northeast	2.0
19:10	3.3	north-northeast	1.0
19:20	3.5	northeast	0.7
19:30	3.7	-	CALM
19:40	3.5	-	CALM
19:50	3.6	southwest	0.8
20:00	3.4	south-southwest	2.4
20:10	3.5	south-southwest	2.8
20:20	3.5	southwest	2.6
20:30	3.6	southwest	2.5
20:40	3.5	south-southwest	2.6
20:50	3.6	southwest	2.4
21:00	3.5	southwest	2.4
21:10	3.5	southwest	3.0
21:20	3.4	southwest	2.6
21:30	3.4	southwest	2.6
21:40	3.4	southwest	2.4
21:50	3.6	southwest	2.6
22:00	3.4	southwest	2.0
22:10	3.5	southwest	1.9
22:20	3.7	southwest	1.7
22:30	3.5	southwest	1.4
22:40	3.6	southwest	1.1
22:50	3.3	southwest	1.0
23:00	3.7	southwest	1.1
23:10	3.5	southwest	1.3
23:20	3.5	southwest	1.3
23:30	3.6	southwest	2.3
23:40	3.4	southwest	1.5
23:50	3.5	southwest	1.7