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

○Information

○Measurement value list ： 2025/07/08(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	3.5	-	CALM
00:10	3.5	north-northeast	0.8
00:20	3.5	northeast	1.2
00:30	3.6	northeast	1.1
00:40	3.6	north-northeast	1.2
00:50	3.6	north-northeast	0.7
01:00	3.4	northeast	0.6
01:10	3.5	north-northeast	0.9
01:20	3.5	-	CALM
01:30	3.6	northeast	0.8
01:40	3.5	-	CALM
01:50	3.6	east	0.7
02:00	3.6	east-southeast	0.9
02:10	3.7	southeast	0.7
02:20	3.5	southeast	0.9
02:30	3.6	southeast	0.9
02:40	3.7	east-southeast	0.6
02:50	3.6	east-northeast	1.1
03:00	3.7	northeast	1.4
03:10	3.4	east-northeast	1.4
03:20	3.6	northeast	1.4
03:30	3.7	northeast	1.1
03:40	3.7	north-northeast	0.7
03:50	3.7	north	0.8
04:00	3.6	north	1.1
04:10	3.5	north	1.2
04:20	3.7	north-northwest	1.3
04:30	3.6	northwest	1.0
04:40	3.5	north-northwest	2.0
04:50	3.5	north-northwest	1.5
05:00	3.5	north	1.7
05:10	3.5	north	2.3
05:20	3.5	north	2.2
05:30	3.6	north	2.3
05:40	3.5	north	1.5
05:50	3.6	northwest	1.3
06:00	3.5	north-northwest	1.4
06:10	3.5	north-northwest	1.4
06:20	3.6	north-northwest	0.7
06:30	3.4	north-northwest	0.7
06:40	3.6	west-northwest	0.7
06:50	3.7	west-southwest	0.6
07:00	3.6	northwest	0.6
07:10	3.5	-	CALM
07:20	3.3	east	0.7
07:30	3.5	southeast	1.1
07:40	3.6	east-southeast	1.2
07:50	3.6	east-southeast	1.5
08:00	3.6	east-southeast	1.5
08:10	3.6	east-southeast	1.4
08:20	3.6	east	1.8
08:30	3.6	east	1.7
08:40	3.6	east-northeast	2.1
08:50	3.6	northeast	2.3
09:00	3.5	northeast	2.1
09:10	3.3	northeast	2.6
09:20	3.7	northeast	2.7
09:30	3.6	east-northeast	1.8
09:40	3.4	east-northeast	2.2
09:50	3.5	east-northeast	2.3
10:00	3.6	east	2.0
10:10	3.6	east-southeast	2.8
10:20	3.6	east-southeast	2.9
10:30	3.6	east-southeast	2.5
10:40	3.6	east-southeast	3.5
10:50	3.5	east	2.5
11:00	3.5	east	3.5
11:10	3.7	east	2.8
11:20	3.7	east	2.5
11:30	3.5	east	3.1
11:40	3.6	east-southeast	2.7
11:50	3.6	east	2.8
12:00	3.6	east	3.5
12:10	3.6	east-southeast	3.2
12:20	3.4	east	2.9
12:30	3.6	east	2.7
12:40	3.4	east	2.3
12:50	3.6	east	2.4
13:00	3.6	east-southeast	2.3
13:10	3.6	southeast	2.2
13:20	3.7	southeast	2.3
13:30	3.4	southeast	2.8
13:40	3.6	east-southeast	2.3
13:50	3.7	east-southeast	2.6
14:00	3.6	east-southeast	3.3
14:10	3.5	east-southeast	2.5
14:20	3.5	east-southeast	2.6
14:30	3.6	east-southeast	2.4
14:40	3.6	east-southeast	2.3
14:50	3.5	southeast	1.9
15:00	3.4	southeast	2.7
15:10	3.6	southeast	2.7
15:20	3.6	southeast	2.5
15:30	3.5	south-southeast	3.6
15:40	3.7	south-southeast	2.9
15:50	3.5	south	3.3
16:00	3.7	south-southeast	2.1
16:10	3.3	south-southeast	2.0
16:20	3.5	south	2.2
16:30	3.6	south-southeast	2.4
16:40	3.7	south-southeast	1.9
16:50	3.5	south-southeast	2.7
17:00	3.6	south	4.5
17:10	3.6	south-southeast	5.5
17:20	3.6	south-southeast	4.4
17:30	3.6	south	4.2
17:40	3.5	south-southeast	4.7
17:50	3.5	south	3.0
18:00	3.5	south	3.1
18:10	3.6	south	3.3
18:20	3.4	south-southeast	4.2
18:30	3.6	south	3.9
18:40	3.6	south	3.9
18:50	3.5	south	3.8
19:00	3.6	south	2.2
19:10	3.6	south-southwest	0.7
19:20	3.5	southwest	0.6
19:30	3.5	south-southwest	1.2
19:40	3.5	south-southwest	1.1
19:50	3.6	south-southwest	1.3
20:00	3.7	south-southwest	0.8
20:10	3.5	south	1.8
20:20	3.7	south	2.6
20:30	3.5	south	3.4
20:40	3.7	south	4.7
20:50	3.6	south	4.5
21:00	3.8	south	4.6
21:10	3.6	south	4.6
21:20	3.6	south	4.3
21:30	3.4	south-southeast	4.8
21:40	3.6	south	5.2
21:50	3.5	south	4.9
22:00	3.4	south	4.5
22:10	3.6	south	4.1
22:20	3.5	south	4.1
22:30	3.5	south	4.9
22:40	3.4	south	4.8
22:50	3.7	south	3.9
23:00	3.6	south	3.9
23:10	3.6	south	3.4
23:20	3.6	south	3.7
23:30	3.5	south	4.1
23:40	3.5	south	4.2
23:50	3.6	south	3.3