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

○Information

○Measurement value list ： 2025/09/08(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	south-southeast	2.9
00:10	3.5	south	2.7
00:20	3.7	south	3.0
00:30	3.5	south	2.9
00:40	3.6	south-southwest	3.3
00:50	3.6	south	3.7
01:00	3.5	south	3.8
01:10	3.6	south	3.2
01:20	3.7	south-southeast	3.2
01:30	3.7	south-southwest	3.2
01:40	3.5	south-southeast	3.4
01:50	3.7	south-southeast	3.4
02:00	3.7	south-southeast	3.4
02:10	3.5	south-southeast	3.2
02:20	3.6	south-southeast	3.1
02:30	3.6	south-southeast	2.8
02:40	3.6	south	2.9
02:50	3.6	south	2.8
03:00	3.6	south-southwest	2.0
03:10	3.5	south-southwest	2.0
03:20	3.4	south-southwest	2.3
03:30	3.5	southwest	2.1
03:40	3.8	southwest	2.4
03:50	3.5	southwest	2.2
04:00	3.7	southwest	2.6
04:10	3.7	southwest	2.4
04:20	3.6	southwest	2.2
04:30	3.5	west-southwest	1.8
04:40	3.4	west-southwest	1.8
04:50	3.4	west-northwest	2.2
05:00	3.5	west-northwest	1.9
05:10	3.5	north-northwest	1.7
05:20	3.5	north-northwest	1.8
05:30	3.6	east-northeast	1.8
05:40	3.6	northeast	1.5
05:50	3.4	north	0.9
06:00	3.5	north	1.9
06:10	3.5	east-southeast	2.0
06:20	3.5	southeast	1.3
06:30	3.6	south	1.5
06:40	3.8	south	1.0
06:50	3.8	south-southwest	0.9
07:00	3.6	-	CALM
07:10	3.4	west	0.7
07:20	3.5	southwest	0.6
07:30	3.6	west	1.7
07:40	3.6	west-northwest	1.8
07:50	3.5	north-northwest	2.5
08:00	3.6	north	2.7
08:10	3.5	-	CALM
08:20	3.6	west-northwest	0.7
08:30	3.4	north-northeast	1.2
08:40	3.6	north-northeast	1.6
08:50	3.5	north-northeast	1.3
09:00	3.5	east-northeast	2.0
09:10	3.6	east	0.8
09:20	3.5	east-northeast	1.7
09:30	3.6	north-northwest	0.9
09:40	3.6	north-northeast	1.7
09:50	3.6	northeast	2.0
10:00	3.5	northeast	1.3
10:10	3.5	east-northeast	1.4
10:20	3.5	east-northeast	2.5
10:30	3.5	northeast	2.2
10:40	3.6	east-northeast	2.0
10:50	3.6	northeast	2.5
11:00	3.4	north-northeast	3.0
11:10	3.4	northeast	2.9
11:20	3.5	east-northeast	2.4
11:30	3.5	northeast	2.1
11:40	3.6	north	1.4
11:50	3.5	northeast	1.6
12:00	3.5	northeast	1.5
12:10	3.7	north-northeast	1.6
12:20	3.6	northeast	1.9
12:30	3.6	northeast	2.3
12:40	3.5	east-northeast	1.9
12:50	3.7	east-northeast	1.4
13:00	3.7	east-northeast	1.8
13:10	3.6	east-northeast	2.4
13:20	3.6	east-southeast	1.8
13:30	3.5	east-northeast	3.2
13:40	3.6	east	2.7
13:50	3.6	southeast	2.3
14:00	3.7	east-southeast	2.4
14:10	3.5	east-southeast	2.6
14:20	3.6	east-southeast	2.3
14:30	3.5	south-southeast	2.4
14:40	3.4	southeast	1.6
14:50	3.6	southeast	3.1
15:00	3.4	southeast	2.1
15:10	3.6	east-southeast	2.8
15:20	3.4	east-southeast	1.8
15:30	3.6	southeast	1.1
15:40	3.6	east-southeast	0.9
15:50	3.4	northeast	1.5
16:00	3.6	east-northeast	1.5
16:10	3.6	east-northeast	1.8
16:20	3.5	northeast	1.5
16:30	3.5	northeast	1.5
16:40	3.5	east-northeast	1.8
16:50	3.7	northeast	1.6
17:00	3.5	northeast	0.9
17:10	3.5	east-northeast	1.0
17:20	3.5	northeast	1.3
17:30	3.4	north	1.1
17:40	3.6	north	0.7
17:50	3.5	north-northwest	1.3
18:00	3.4	north-northeast	0.7
18:10	3.5	northeast	1.0
18:20	3.5	north-northeast	1.0
18:30	3.7	north	0.9
18:40	3.5	north	1.3
18:50	3.5	north	0.7
19:00	3.5	-	CALM
19:10	3.6	-	CALM
19:20	3.5	southeast	0.8
19:30	3.6	northwest	0.8
19:40	3.5	-	CALM
19:50	3.7	-	CALM
20:00	3.5	-	CALM
20:10	3.4	-	CALM
20:20	3.5	east	0.7
20:30	3.6	east-northeast	0.7
20:40	3.7	north-northwest	0.9
20:50	3.5	east	0.8
21:00	3.5	east-northeast	1.0
21:10	3.4	-	CALM
21:20	3.6	-	CALM
21:30	3.5	east	0.6
21:40	3.5	-	CALM
21:50	3.5	-	CALM
22:00	3.4	north	1.0
22:10	3.6	northeast	0.6
22:20	3.7	north-northwest	1.6
22:30	3.5	north	1.7
22:40	3.5	northwest	1.6
22:50	3.6	north-northwest	1.8
23:00	3.6	north-northwest	1.0
23:10	3.6	northwest	1.5
23:20	3.6	northwest	1.5
23:30	3.6	northwest	2.3
23:40	3.6	north-northwest	2.8
23:50	3.6	north-northwest	3.2