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

○Information

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