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

○Information

○Measurement value list ： 2025/07/23(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	east-northeast	1.0
00:10	3.5	east	1.2
00:20	3.5	east-southeast	1.2
00:30	3.6	east	1.6
00:40	3.5	east-southeast	1.2
00:50	3.6	east-southeast	1.3
01:00	3.5	east	1.2
01:10	3.5	east-southeast	0.7
01:20	3.7	southeast	0.8
01:30	3.5	southeast	0.9
01:40	3.5	-	CALM
01:50	3.5	west	0.8
02:00	3.4	-	CALM
02:10	3.5	-	CALM
02:20	3.5	-	CALM
02:30	3.5	-	CALM
02:40	3.5	-	CALM
02:50	3.6	west-northwest	1.4
03:00	3.4	west-northwest	1.9
03:10	3.5	west-northwest	1.1
03:20	3.6	northwest	1.5
03:30	3.4	northwest	2.2
03:40	3.6	northwest	3.4
03:50	3.6	west-northwest	4.3
04:00	3.7	west-northwest	3.8
04:10	3.6	west-northwest	4.1
04:20	3.7	west-northwest	3.1
04:30	3.6	northwest	2.5
04:40	3.4	north-northwest	2.7
04:50	3.5	northwest	2.8
05:00	3.6	west-northwest	2.1
05:10	3.5	west-northwest	1.4
05:20	3.6	west-northwest	1.2
05:30	3.6	west-northwest	2.1
05:40	3.4	northwest	3.6
05:50	3.5	northwest	2.8
06:00	3.5	northwest	2.8
06:10	3.5	northwest	2.5
06:20	3.5	northwest	2.3
06:30	3.5	north-northwest	1.6
06:40	3.6	north	1.0
06:50	3.5	-	CALM
07:00	3.6	north	0.8
07:10	3.5	east-northeast	1.3
07:20	3.6	east-northeast	1.9
07:30	3.5	east-northeast	1.9
07:40	3.6	east-northeast	2.4
07:50	3.5	east-northeast	2.4
08:00	3.6	east-northeast	2.3
08:10	3.5	east-northeast	2.5
08:20	3.6	east-northeast	2.8
08:30	3.6	east	2.3
08:40	3.4	east	1.9
08:50	3.7	east	2.0
09:00	3.6	east-northeast	2.6
09:10	3.4	east	2.5
09:20	3.7	east-northeast	2.9
09:30	3.5	east	2.8
09:40	3.4	east	3.2
09:50	3.4	east	3.7
10:00	3.5	east	3.1
10:10	3.6	east	3.5
10:20	3.5	east	3.8
10:30	3.5	east	4.0
10:40	3.5	east	3.3
10:50	3.6	east-southeast	2.9
11:00	3.6	southeast	3.0
11:10	3.4	east-southeast	2.8
11:20	3.5	east-southeast	2.7
11:30	3.6	east-southeast	3.0
11:40	3.6	east-southeast	3.6
11:50	3.4	east	3.8
12:00	3.6	east-southeast	3.8
12:10	3.7	east-southeast	3.7
12:20	3.6	east-southeast	4.3
12:30	3.7	east-southeast	4.6
12:40	3.5	east-southeast	4.7
12:50	3.7	southeast	3.8
13:00	3.5	southeast	4.7
13:10	3.7	southeast	4.9
13:20	3.6	southeast	4.4
13:30	3.4	southeast	3.5
13:40	3.6	south-southeast	3.7
13:50	3.6	southeast	4.0
14:00	3.6	southeast	4.2
14:10	3.6	southeast	4.1
14:20	3.5	south-southeast	4.3
14:30	3.7	south-southeast	4.0
14:40	3.5	southeast	3.7
14:50	3.6	south-southeast	3.0
15:00	3.6	south-southeast	4.4
15:10	3.4	south-southeast	3.5
15:20	3.6	south-southeast	4.8
15:30	3.5	south	5.3
15:40	3.5	south-southeast	4.4
15:50	3.5	south-southeast	4.7
16:00	3.5	south	5.0
16:10	3.5	south-southeast	3.4
16:20	3.5	south-southeast	3.8
16:30	3.5	southeast	3.2
16:40	3.8	south	4.1
16:50	3.5	south	3.6
17:00	3.6	south-southeast	3.9
17:10	3.5	south-southeast	3.9
17:20	3.5	south	4.7
17:30	3.5	south-southeast	4.6
17:40	3.6	south-southeast	4.9
17:50	3.6	south	4.9
18:00	3.5	south-southeast	4.4
18:10	3.7	south	4.3
18:20	3.5	south	4.0
18:30	3.6	south	3.1
18:40	3.5	south	3.8
18:50	3.5	south-southeast	4.1
19:00	3.6	south	4.2
19:10	3.7	south	3.6
19:20	3.6	south	3.3
19:30	3.5	south	3.3
19:40	3.7	south	2.7
19:50	3.4	south-southwest	3.2
20:00	3.5	west-southwest	1.8
20:10	3.5	west	1.6
20:20	3.6	northwest	1.6
20:30	3.3	north-northwest	1.8
20:40	3.5	north	1.1
20:50	3.6	northwest	0.9
21:00	3.7	-	CALM
21:10	3.4	-	CALM
21:20	3.5	-	CALM
21:30	3.5	-	CALM
21:40	3.6	southeast	0.7
21:50	3.5	south	0.7
22:00	3.5	south	1.0
22:10	3.5	south-southwest	1.8
22:20	3.5	south-southwest	1.6
22:30	3.6	south-southwest	1.7
22:40	3.5	south	1.8
22:50	3.7	southwest	0.9
23:00	3.4	southwest	1.5
23:10	3.7	west-southwest	0.8
23:20	3.5	west	0.7
23:30	3.6	-	CALM
23:40	3.6	northwest	0.6
23:50	3.4	north-northeast	1.4