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

○Information

○Measurement value list ： 2026/07/05(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	south	2.5
00:10	3.5	south-southwest	1.7
00:20	3.5	south-southwest	2.0
00:30	3.5	south	1.8
00:40	3.5	south	1.4
00:50	3.6	south	1.7
01:00	3.5	south	2.1
01:10	3.5	south-southeast	1.9
01:20	3.7	south	2.0
01:30	3.6	south	1.7
01:40	3.6	south	2.1
01:50	3.5	south	1.7
02:00	3.7	south	1.2
02:10	3.5	south-southwest	1.8
02:20	3.5	south-southwest	1.4
02:30	3.7	west-southwest	1.2
02:40	3.5	west-southwest	1.1
02:50	3.6	west-southwest	0.8
03:00	3.4	west	1.1
03:10	3.6	west-northwest	1.5
03:20	3.6	-	CALM
03:30	3.7	-	CALM
03:40	3.7	northwest	0.6
03:50	3.5	northwest	1.4
04:00	3.4	north-northwest	1.5
04:10	3.6	north-northwest	1.9
04:20	3.5	northwest	2.0
04:30	3.7	north-northwest	1.3
04:40	3.4	north-northeast	1.5
04:50	3.6	north-northwest	1.7
05:00	3.4	north-northwest	1.4
05:10	3.7	northwest	1.1
05:20	3.7	west	1.4
05:30	3.5	west	1.0
05:40	3.5	west-northwest	1.3
05:50	3.6	-	CALM
06:00	3.8	northwest	0.9
06:10	3.6	northwest	1.4
06:20	3.6	west-southwest	0.9
06:30	3.5	north	0.8
06:40	3.5	-	CALM
06:50	3.5	north-northwest	0.7
07:00	3.6	-	CALM
07:10	3.6	-	CALM
07:20	3.6	north-northwest	0.8
07:30	3.6	-	CALM
07:40	3.6	north	0.6
07:50	3.5	east-southeast	1.1
08:00	3.7	east-northeast	1.2
08:10	3.6	east-northeast	1.4
08:20	3.5	northeast	2.0
08:30	3.5	east-northeast	1.7
08:40	3.7	northeast	0.9
08:50	3.6	-	CALM
09:00	3.6	-	CALM
09:10	3.6	east-northeast	1.1
09:20	3.4	east	0.8
09:30	3.5	east-northeast	1.2
09:40	3.5	east	1.8
09:50	3.6	east	1.7
10:00	3.5	east	2.6
10:10	3.5	east	3.5
10:20	3.7	east	2.8
10:30	3.6	east-southeast	2.6
10:40	3.6	east-southeast	3.3
10:50	3.4	east-southeast	4.4
11:00	3.5	east-southeast	3.7
11:10	3.5	east-southeast	3.4
11:20	3.7	east-southeast	3.8
11:30	3.4	southeast	2.9
11:40	3.6	southeast	3.8
11:50	3.5	southeast	3.2
12:00	3.6	south-southeast	2.9
12:10	3.4	southeast	2.8
12:20	3.5	southeast	4.5
12:30	3.7	southeast	4.4
12:40	3.5	south-southeast	5.4
12:50	3.5	southeast	5.8
13:00	3.6	southeast	5.4
13:10	3.5	southeast	5.2
13:20	3.5	southeast	5.6
13:30	3.5	south-southeast	6.4
13:40	3.5	south-southeast	6.6
13:50	3.6	south-southeast	6.5
14:00	3.5	south-southeast	5.9
14:10	3.5	south-southeast	6.3
14:20	3.6	south-southeast	6.5
14:30	3.7	southeast	7.4
14:40	3.5	south-southeast	7.1
14:50	3.4	southeast	7.3
15:00	3.5	south-southeast	7.3
15:10	3.5	south-southeast	6.3
15:20	3.5	south-southeast	7.2
15:30	3.5	south-southeast	7.9
15:40	3.5	south-southeast	7.2
15:50	3.6	south-southeast	7.2
16:00	3.5	south-southeast	6.5
16:10	3.6	south-southeast	6.6
16:20	3.5	south-southeast	7.2
16:30	3.7	south-southeast	6.9
16:40	3.5	south-southeast	6.7
16:50	3.5	south-southeast	7.4
17:00	3.5	south-southeast	6.7
17:10	3.8	south-southeast	6.6
17:20	3.6	south-southeast	6.8
17:30	3.5	south-southeast	7.0
17:40	3.7	south-southeast	6.4
17:50	3.6	south-southeast	6.2
18:00	3.5	south-southeast	6.5
18:10	3.6	south-southeast	6.6
18:20	3.4	south-southeast	6.4
18:30	3.5	south-southeast	6.7
18:40	3.5	south-southeast	6.3
18:50	3.4	south-southeast	6.2
19:00	3.6	south-southeast	5.6
19:10	3.5	south-southeast	5.2
19:20	3.5	south-southeast	5.8
19:30	3.5	south-southeast	5.5
19:40	3.6	south-southeast	5.6
19:50	3.5	south-southeast	5.9
20:00	3.5	south-southeast	6.1
20:10	3.5	south-southeast	7.4
20:20	3.6	south-southeast	7.5
20:30	3.5	south-southeast	7.4
20:40	3.5	south-southeast	6.9
20:50	3.6	south-southeast	7.1
21:00	3.5	south	7.3
21:10	3.7	south-southeast	6.6
21:20	3.6	south	6.8
21:30	3.5	south	6.5
21:40	3.5	south	6.6
21:50	3.5	south	6.3
22:00	3.5	south	6.4
22:10	3.5	south	5.7
22:20	3.6	south	6.1
22:30	3.5	south	5.4
22:40	3.5	south	5.2
22:50	3.6	south-southeast	4.8
23:00	3.5	south-southeast	5.6
23:10	3.4	south	5.2
23:20	3.6	south	5.7
23:30	3.4	south	5.3
23:40	3.5	south	5.0
23:50	3.6	south-southeast	5.0