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

○Information

○Measurement value list ： 2025/07/26(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	0.7
00:10	3.5	-	CALM
00:20	3.6	-	CALM
00:30	3.6	-	CALM
00:40	3.6	-	CALM
00:50	3.6	north-northeast	0.6
01:00	3.6	north-northwest	0.7
01:10	3.6	north	1.7
01:20	3.7	north-northwest	1.8
01:30	3.5	northwest	2.0
01:40	3.5	northwest	2.4
01:50	3.6	north-northwest	1.3
02:00	3.5	north	2.1
02:10	3.6	north	2.4
02:20	3.5	north	2.6
02:30	3.7	north	2.4
02:40	3.6	north	3.2
02:50	3.5	north	3.4
03:00	3.6	north-northwest	3.4
03:10	3.5	north-northwest	3.3
03:20	3.5	north-northwest	3.5
03:30	3.6	north-northwest	2.8
03:40	3.6	north	2.7
03:50	3.6	north	2.8
04:00	3.5	north	2.5
04:10	3.5	north-northwest	1.9
04:20	3.7	north	2.4
04:30	3.5	north-northwest	1.8
04:40	3.5	north	1.4
04:50	3.5	north	1.2
05:00	3.6	north	0.8
05:10	3.7	north	1.0
05:20	3.6	north	1.2
05:30	3.6	north	1.2
05:40	3.4	northwest	1.0
05:50	3.5	northwest	0.9
06:00	3.7	north	0.9
06:10	3.5	-	CALM
06:20	3.6	-	CALM
06:30	3.7	-	CALM
06:40	3.7	-	CALM
06:50	3.6	-	CALM
07:00	3.4	-	CALM
07:10	3.5	north	0.7
07:20	3.5	northeast	0.9
07:30	3.5	north-northeast	0.7
07:40	3.5	north-northeast	1.4
07:50	3.4	northeast	1.3
08:00	3.6	northeast	1.4
08:10	3.5	northeast	1.1
08:20	3.5	northeast	2.2
08:30	3.5	north-northeast	2.0
08:40	3.7	northeast	1.5
08:50	3.5	northeast	1.9
09:00	3.6	northeast	2.2
09:10	3.6	east-northeast	1.7
09:20	3.5	northeast	1.9
09:30	3.6	east-northeast	1.9
09:40	3.5	northeast	3.2
09:50	3.5	northeast	3.0
10:00	3.6	east-northeast	2.4
10:10	3.6	east-northeast	2.4
10:20	3.5	east-northeast	2.0
10:30	3.7	east	2.4
10:40	3.6	east	3.0
10:50	3.4	east-northeast	3.2
11:00	3.6	east-northeast	3.0
11:10	3.6	east-northeast	3.2
11:20	3.4	east-northeast	2.9
11:30	3.6	east	2.1
11:40	3.4	east	2.4
11:50	3.6	east	2.4
12:00	3.5	east-southeast	2.0
12:10	3.5	east	1.8
12:20	3.6	east-southeast	2.5
12:30	3.4	east	2.2
12:40	3.6	east	3.3
12:50	3.6	southeast	2.7
13:00	3.6	east-southeast	2.9
13:10	3.6	east-southeast	3.2
13:20	3.5	east	4.0
13:30	3.6	east-southeast	3.1
13:40	3.5	east-southeast	3.3
13:50	3.5	southeast	2.2
14:00	3.5	east-southeast	2.2
14:10	3.6	southeast	2.3
14:20	3.5	east-southeast	2.1
14:30	3.5	east-southeast	2.3
14:40	3.6	east	2.6
14:50	3.5	east-southeast	3.5
15:00	3.6	east-southeast	3.4
15:10	3.6	southeast	3.2
15:20	3.5	east-southeast	3.5
15:30	3.5	east-southeast	3.3
15:40	3.6	southeast	2.8
15:50	3.6	east-southeast	3.4
16:00	3.6	southeast	2.7
16:10	3.6	east-southeast	2.5
16:20	3.5	southeast	2.1
16:30	3.7	southeast	2.2
16:40	3.5	southeast	2.4
16:50	3.7	south-southeast	2.4
17:00	3.4	south-southeast	2.2
17:10	3.4	southeast	1.9
17:20	3.7	south-southeast	3.1
17:30	3.7	south-southeast	2.1
17:40	3.5	southeast	1.6
17:50	3.6	south-southeast	1.9
18:00	3.6	southeast	2.2
18:10	3.5	south-southeast	2.9
18:20	3.6	south-southeast	2.4
18:30	3.5	east-southeast	1.3
18:40	3.4	east-southeast	1.3
18:50	3.5	east-northeast	0.7
19:00	3.6	east-northeast	0.9
19:10	3.4	south-southeast	0.7
19:20	3.6	-	CALM
19:30	3.5	-	CALM
19:40	3.6	-	CALM
19:50	3.4	-	CALM
20:00	3.6	-	CALM
20:10	3.4	-	CALM
20:20	3.6	north	0.7
20:30	3.7	north	0.7
20:40	3.5	-	CALM
20:50	3.7	-	CALM
21:00	3.6	-	CALM
21:10	3.6	-	CALM
21:20	3.5	west-northwest	1.0
21:30	3.6	west	1.2
21:40	3.5	west-northwest	1.7
21:50	3.4	west-northwest	1.8
22:00	3.6	northwest	1.0
22:10	3.6	north-northwest	0.8
22:20	3.4	northwest	0.6
22:30	3.5	north-northwest	0.8
22:40	3.5	north-northeast	0.6
22:50	3.5	north-northwest	0.6
23:00	3.5	north-northwest	1.9
23:10	3.5	north-northwest	2.1
23:20	3.5	north-northwest	1.9
23:30	3.5	north-northwest	2.2
23:40	3.5	north-northwest	1.2
23:50	3.5	north-northwest	1.0