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

○Information

○Measurement value list ： 2025/09/30(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	northwest	6.7
00:10	3.6	northwest	6.7
00:20	3.6	northwest	5.7
00:30	3.6	northwest	5.7
00:40	3.7	northwest	6.2
00:50	3.7	northwest	6.4
01:00	3.5	northwest	5.3
01:10	3.7	northwest	4.5
01:20	3.4	northwest	4.3
01:30	3.6	northwest	4.0
01:40	3.5	northwest	4.3
01:50	3.6	northwest	4.1
02:00	3.5	northwest	4.5
02:10	3.6	northwest	5.1
02:20	3.6	northwest	4.8
02:30	3.6	northwest	4.7
02:40	3.6	northwest	4.8
02:50	3.6	northwest	5.2
03:00	3.6	northwest	4.7
03:10	3.5	northwest	4.7
03:20	3.5	northwest	4.7
03:30	3.7	northwest	4.3
03:40	3.7	northwest	4.0
03:50	3.5	northwest	3.7
04:00	3.6	northwest	3.6
04:10	3.6	northwest	3.3
04:20	3.6	west-northwest	3.9
04:30	3.4	west-northwest	3.8
04:40	3.6	west-northwest	3.8
04:50	3.4	west-northwest	3.4
05:00	3.6	northwest	3.4
05:10	3.6	northwest	3.4
05:20	3.5	northwest	3.2
05:30	3.6	northwest	3.3
05:40	3.5	west-northwest	3.3
05:50	3.6	northwest	2.9
06:00	3.6	west-northwest	2.6
06:10	3.6	west-northwest	2.8
06:20	3.6	west-northwest	2.9
06:30	3.5	west-northwest	2.5
06:40	3.6	west	2.1
06:50	3.6	west-northwest	1.6
07:00	3.7	west-northwest	1.6
07:10	3.6	northwest	1.0
07:20	3.6	northwest	0.9
07:30	3.6	north-northwest	0.7
07:40	3.5	northwest	1.4
07:50	3.6	west-northwest	2.1
08:00	3.4	northwest	1.1
08:10	3.6	west-northwest	1.0
08:20	3.6	northwest	0.8
08:30	3.5	north-northwest	0.8
08:40	3.3	east-northeast	2.2
08:50	3.5	north-northeast	1.6
09:00	3.7	northeast	2.4
09:10	3.4	north-northeast	1.5
09:20	3.5	north-northeast	2.1
09:30	3.7	east	2.3
09:40	3.5	east-northeast	2.1
09:50	3.5	east-northeast	3.1
10:00	3.4	east	2.8
10:10	3.6	east-northeast	2.9
10:20	3.7	east-northeast	2.3
10:30	3.6	east-northeast	3.0
10:40	3.6	east-northeast	2.8
10:50	3.6	east-northeast	4.1
11:00	3.6	east	2.8
11:10	3.6	east-northeast	3.4
11:20	3.6	east	3.2
11:30	3.5	east	3.2
11:40	3.5	east	3.5
11:50	3.5	east-southeast	3.2
12:00	3.6	east	3.8
12:10	3.8	east	3.4
12:20	3.6	east	4.4
12:30	3.6	east	5.2
12:40	3.7	east	4.6
12:50	3.4	east-southeast	4.7
13:00	3.6	east-southeast	4.3
13:10	3.6	east	4.5
13:20	3.6	east	5.5
13:30	3.6	east-southeast	4.1
13:40	3.4	east-southeast	4.9
13:50	3.7	east-southeast	4.8
14:00	3.6	east	3.6
14:10	3.6	east-southeast	3.8
14:20	3.6	east-southeast	3.8
14:30	3.6	southeast	3.7
14:40	3.5	east-southeast	4.5
14:50	3.6	southeast	4.0
15:00	3.6	southeast	4.3
15:10	3.5	southeast	4.6
15:20	3.5	southeast	4.7
15:30	3.6	southeast	4.1
15:40	3.6	east-southeast	4.3
15:50	3.7	southeast	4.3
16:00	3.5	south-southeast	4.4
16:10	3.7	south-southeast	4.0
16:20	3.6	southeast	4.3
16:30	3.5	south-southeast	4.5
16:40	3.7	south-southeast	3.9
16:50	3.5	south-southeast	3.7
17:00	3.6	south-southeast	3.9
17:10	3.6	south-southeast	4.1
17:20	3.6	south-southeast	4.2
17:30	3.6	south-southeast	4.7
17:40	3.6	south-southeast	4.5
17:50	3.6	south-southeast	4.7
18:00	3.5	south-southeast	4.5
18:10	3.5	south	4.1
18:20	3.6	south-southeast	3.4
18:30	3.6	south	3.3
18:40	3.7	south	3.5
18:50	3.5	south	3.4
19:00	3.5	south	3.6
19:10	3.5	south	3.8
19:20	3.6	south	3.8
19:30	3.6	south	3.6
19:40	3.6	south	2.9
19:50	3.7	south	3.4
20:00	3.6	south-southwest	3.3
20:10	3.6	south-southwest	3.3
20:20	3.6	south-southwest	3.0
20:30	3.5	south	3.0
20:40	3.6	south	3.5
20:50	3.5	south	3.2
21:00	3.5	south-southwest	3.1
21:10	3.5	south	3.1
21:20	3.6	south	3.1
21:30	3.8	south	3.1
21:40	3.7	south	3.3
21:50	3.5	south	3.1
22:00	3.7	south	3.0
22:10	3.6	south-southwest	3.4
22:20	3.7	south-southwest	3.9
22:30	3.7	south-southwest	4.3
22:40	3.5	south	4.5
22:50	3.5	south-southwest	4.4
23:00	3.6	south	3.8
23:10	3.7	south	4.0
23:20	3.6	south	3.9
23:30	3.6	south	3.3
23:40	3.5	south	3.0
23:50	3.5	south-southwest	2.7