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

○Information

○Measurement value list ： 2026/07/02(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	south	1.2
00:10	3.6	south-southwest	1.2
00:20	3.6	south-southwest	0.9
00:30	3.7	southwest	0.9
00:40	3.3	-	CALM
00:50	3.6	-	CALM
01:00	3.6	-	CALM
01:10	3.6	north	0.7
01:20	3.6	-	CALM
01:30	3.7	-	CALM
01:40	3.5	northwest	0.9
01:50	3.5	north-northwest	1.4
02:00	3.6	north	1.5
02:10	3.6	-	CALM
02:20	3.5	-	CALM
02:30	3.5	north	0.6
02:40	3.5	north-northwest	1.5
02:50	3.5	north	2.0
03:00	3.6	north-northwest	1.3
03:10	3.4	north	1.5
03:20	3.6	north	1.2
03:30	3.5	north	1.1
03:40	3.5	north	1.8
03:50	3.5	north-northwest	2.5
04:00	3.5	north	2.2
04:10	3.6	north	2.5
04:20	3.6	north	2.5
04:30	3.6	north	2.3
04:40	3.6	north	2.3
04:50	3.5	north-northwest	2.2
05:00	3.6	north-northwest	1.8
05:10	3.4	-	CALM
05:20	3.6	northwest	0.6
05:30	3.7	north	1.7
05:40	3.5	northwest	0.6
05:50	3.5	north	1.3
06:00	3.5	-	CALM
06:10	3.7	-	CALM
06:20	3.6	northwest	0.6
06:30	3.4	north-northwest	0.9
06:40	3.6	northwest	0.7
06:50	3.5	north	0.8
07:00	3.6	north-northwest	0.9
07:10	3.6	northwest	0.7
07:20	3.4	north	1.0
07:30	3.6	north	1.6
07:40	3.5	north	0.6
07:50	3.7	-	CALM
08:00	3.6	southeast	1.1
08:10	3.6	east-northeast	1.1
08:20	3.7	east-northeast	1.5
08:30	3.4	-	-
08:40	3.5	-	-
08:50	3.4	-	-
09:00	3.6	-	-
09:10	3.6	-	-
09:20	3.6	-	-
09:30	3.7	-	-
09:40	3.5	-	-
09:50	3.5	-	-
10:00	3.6	northeast	1.8
10:10	3.5	northeast	1.5
10:20	3.7	northeast	2.0
10:30	3.6	east-northeast	2.4
10:40	3.5	east	1.9
10:50	3.5	east	1.2
11:00	3.5	east-northeast	1.0
11:10	3.6	east-northeast	1.2
11:20	3.6	northeast	1.0
11:30	3.5	east-northeast	1.4
11:40	3.7	east-northeast	1.1
11:50	3.5	northeast	1.8
12:00	3.6	east-northeast	1.9
12:10	3.8	east-northeast	2.5
12:20	3.6	east	2.0
12:30	3.6	east	2.6
12:40	3.6	east	3.1
12:50	3.6	east	4.2
13:00	3.6	east	3.8
13:10	3.5	east-southeast	2.8
13:20	3.4	east-southeast	0.9
13:30	3.5	southeast	0.8
13:40	3.6	east	1.3
13:50	3.6	east-southeast	0.6
14:00	3.6	east-northeast	1.1
14:10	3.5	northeast	1.3
14:20	3.5	north	1.4
14:30	3.6	north-northeast	2.0
14:40	3.8	northeast	3.3
14:50	3.6	northeast	2.2
15:00	3.6	northeast	2.3
15:10	3.6	north-northeast	2.6
15:20	3.4	north-northeast	3.1
15:30	3.6	north-northeast	2.9
15:40	3.3	north-northeast	4.1
15:50	3.5	north-northeast	4.5
16:00	3.6	north-northeast	5.2
16:10	3.5	north	5.0
16:20	3.5	north	4.1
16:30	3.5	north-northeast	5.7
16:40	3.4	north-northeast	5.3
16:50	3.5	north	4.2
17:00	3.4	north-northeast	4.0
17:10	3.4	north-northeast	4.7
17:20	3.6	north-northeast	4.9
17:30	3.4	north	2.9
17:40	3.5	north	3.0
17:50	3.7	north	3.8
18:00	3.4	north-northwest	4.3
18:10	3.6	north	3.3
18:20	3.5	north	4.2
18:30	3.6	north-northwest	4.1
18:40	3.6	north	4.1
18:50	3.6	north-northeast	4.7
19:00	3.5	northeast	6.7
19:10	3.5	northeast	6.4
19:20	3.5	northeast	5.6
19:30	3.6	north-northeast	8.8
19:40	3.6	northeast	6.4
19:50	3.6	northeast	8.3
20:00	3.6	northeast	8.4
20:10	3.5	northeast	7.8
20:20	3.7	northeast	9.2
20:30	3.6	northeast	7.7
20:40	3.7	north-northeast	6.8
20:50	3.5	north-northeast	6.4
21:00	3.4	north-northeast	5.7
21:10	3.7	north-northeast	5.4
21:20	3.6	north-northeast	5.1
21:30	3.5	north-northeast	5.0
21:40	3.6	north	4.2
21:50	3.8	north	3.4
22:00	3.6	north-northeast	4.3
22:10	3.6	north-northeast	6.0
22:20	3.5	north-northeast	6.7
22:30	3.5	north-northeast	5.6
22:40	3.6	north-northeast	6.4
22:50	3.5	north-northeast	6.0
23:00	3.5	north	4.6
23:10	3.6	north-northeast	5.0
23:20	3.6	north-northeast	3.6
23:30	3.5	north-northeast	5.9
23:40	3.6	north-northeast	4.9
23:50	3.5	north	4.9