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

○Information

○Measurement value list ： 2025/07/31(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	3.7	north-northwest	1.7
00:10	3.6	north	1.5
00:20	3.5	north	1.8
00:30	3.5	north-northwest	2.2
00:40	3.4	northwest	2.7
00:50	3.6	northwest	2.8
01:00	3.5	northwest	3.1
01:10	3.7	northwest	2.7
01:20	3.6	northwest	2.6
01:30	3.7	northwest	2.8
01:40	3.6	northwest	2.8
01:50	3.6	north-northwest	2.6
02:00	3.5	north-northwest	2.8
02:10	3.4	north-northwest	2.8
02:20	3.6	north-northwest	2.9
02:30	3.4	north-northwest	2.6
02:40	3.5	north-northwest	2.9
02:50	3.5	northwest	2.9
03:00	3.7	north-northwest	2.3
03:10	3.6	northwest	2.1
03:20	3.5	northwest	2.0
03:30	3.6	northwest	2.0
03:40	3.5	northwest	1.9
03:50	3.5	northwest	2.1
04:00	3.6	northwest	1.4
04:10	3.5	north-northwest	1.4
04:20	3.6	north-northwest	1.7
04:30	3.6	north-northwest	2.3
04:40	3.6	north	2.1
04:50	3.4	north-northwest	2.2
05:00	3.8	north-northwest	2.2
05:10	3.4	north-northwest	2.3
05:20	3.6	north-northwest	2.4
05:30	3.8	north-northwest	2.6
05:40	3.5	north	2.4
05:50	3.7	north	2.3
06:00	3.5	north	2.4
06:10	3.8	north	1.6
06:20	3.6	north-northwest	1.4
06:30	3.6	north-northwest	2.0
06:40	3.7	northwest	1.9
06:50	3.6	northwest	1.9
07:00	3.6	northwest	1.9
07:10	3.7	north-northwest	2.3
07:20	3.5	northwest	1.9
07:30	3.5	northwest	1.6
07:40	3.6	north-northeast	1.7
07:50	3.6	northeast	2.1
08:00	3.6	northeast	2.7
08:10	3.6	northeast	2.6
08:20	3.7	east-northeast	3.2
08:30	3.6	northeast	3.0
08:40	3.5	northeast	3.2
08:50	3.6	northeast	2.8
09:00	3.5	east-northeast	3.6
09:10	3.6	northeast	3.5
09:20	3.7	northeast	4.4
09:30	3.6	northeast	2.9
09:40	3.6	northeast	3.9
09:50	3.6	northeast	3.5
10:00	3.5	northeast	3.4
10:10	3.5	northeast	3.1
10:20	3.5	northeast	2.9
10:30	3.6	northeast	3.0
10:40	3.4	northeast	3.4
10:50	3.6	east-northeast	3.6
11:00	3.6	northeast	4.1
11:10	3.6	north-northeast	3.1
11:20	3.6	east-northeast	3.4
11:30	3.6	east-northeast	4.5
11:40	3.7	northeast	3.3
11:50	3.7	northeast	4.4
12:00	3.6	northeast	4.7
12:10	3.6	north-northeast	3.8
12:20	3.5	east-northeast	4.7
12:30	3.5	northeast	3.6
12:40	3.7	northeast	3.6
12:50	3.7	north-northeast	3.6
13:00	3.5	northeast	4.0
13:10	3.5	northeast	3.6
13:20	3.6	north-northeast	4.2
13:30	3.5	northeast	3.2
13:40	3.7	northeast	4.4
13:50	3.5	northeast	4.3
14:00	3.4	northeast	2.8
14:10	3.6	northeast	3.6
14:20	3.4	northeast	3.9
14:30	3.6	northeast	3.9
14:40	3.6	east-northeast	2.5
14:50	3.6	northeast	3.8
15:00	3.7	east-northeast	3.1
15:10	3.3	east-northeast	2.8
15:20	3.5	northeast	3.4
15:30	3.5	northeast	3.2
15:40	3.6	northeast	2.9
15:50	3.6	northeast	2.6
16:00	3.6	northeast	2.8
16:10	3.6	east-northeast	2.3
16:20	3.6	northeast	2.6
16:30	3.6	northeast	2.9
16:40	3.5	northeast	1.6
16:50	3.8	northeast	2.3
17:00	3.5	northeast	2.3
17:10	3.6	northeast	2.7
17:20	3.6	east-northeast	3.2
17:30	3.5	northeast	1.8
17:40	3.5	northeast	2.2
17:50	3.5	northeast	2.1
18:00	3.6	northeast	2.3
18:10	3.5	east-northeast	2.1
18:20	3.5	northeast	1.9
18:30	3.7	northeast	1.6
18:40	3.6	north-northeast	1.3
18:50	3.5	northeast	1.7
19:00	3.5	north-northeast	1.5
19:10	3.6	northeast	2.0
19:20	3.7	north-northeast	1.9
19:30	3.5	north	2.0
19:40	3.4	north-northeast	1.9
19:50	3.6	north-northeast	2.1
20:00	3.4	north-northeast	2.1
20:10	3.6	north	1.8
20:20	3.5	north-northeast	2.2
20:30	3.6	north-northeast	1.9
20:40	3.6	north-northeast	1.4
20:50	3.7	north	1.4
21:00	3.5	north	1.7
21:10	3.5	north	2.0
21:20	3.5	north-northwest	1.9
21:30	3.6	north	1.8
21:40	3.6	north-northwest	2.3
21:50	3.5	north-northwest	2.3
22:00	3.4	north-northwest	2.7
22:10	3.5	north-northwest	2.7
22:20	3.5	north-northwest	2.6
22:30	3.6	north-northwest	2.8
22:40	3.4	north-northwest	2.9
22:50	3.6	north-northwest	2.5
23:00	3.5	north-northwest	2.7
23:10	3.6	north-northwest	2.7
23:20	3.6	north	2.7
23:30	3.5	north-northwest	3.5
23:40	3.7	north-northwest	3.6
23:50	3.5	north-northwest	4.1