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

○Information

○Measurement value list ： 2026/07/04(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	-	CALM
00:10	3.6	southeast	0.7
00:20	3.7	-	CALM
00:30	3.5	southeast	0.8
00:40	3.5	east-southeast	1.1
00:50	3.5	south-southeast	1.3
01:00	3.6	east-northeast	0.8
01:10	3.5	east	0.8
01:20	3.5	south	1.0
01:30	3.8	-	-
01:40	3.4	-	-
01:50	3.5	east-southeast	1.2
02:00	3.5	southeast	0.9
02:10	3.7	-	-
02:20	3.6	-	-
02:30	3.4	-	-
02:40	3.4	-	-
02:50	3.6	south-southeast	0.8
03:00	3.5	south	0.7
03:10	3.6	-	-
03:20	3.5	-	-
03:30	3.5	south	0.6
03:40	3.7	south	0.7
03:50	3.6	-	-
04:00	3.5	-	-
04:10	3.4	-	-
04:20	3.5	south	2.7
04:30	3.6	south	2.2
04:40	3.5	south	1.1
04:50	3.5	-	-
05:00	3.4	-	-
05:10	3.5	-	-
05:20	3.5	south-southwest	1.4
05:30	3.5	south	1.1
05:40	3.6	south	1.2
05:50	3.6	south-southeast	1.0
06:00	3.5	south-southeast	0.8
06:10	3.6	southeast	0.7
06:20	3.6	east	0.8
06:30	3.5	east-southeast	1.2
06:40	3.6	south-southeast	1.7
06:50	3.5	south	2.4
07:00	3.5	south-southeast	2.1
07:10	3.4	south-southeast	2.1
07:20	3.6	south-southeast	2.3
07:30	3.4	south-southeast	1.7
07:40	3.5	southeast	2.8
07:50	3.6	southeast	3.0
08:00	3.4	south-southeast	3.1
08:10	3.6	southeast	2.9
08:20	3.6	southeast	2.7
08:30	3.6	southeast	3.2
08:40	3.7	southeast	3.8
08:50	3.6	southeast	4.1
09:00	3.6	southeast	4.0
09:10	3.4	southeast	4.3
09:20	3.6	southeast	4.7
09:30	3.5	southeast	4.6
09:40	3.4	southeast	4.4
09:50	3.6	southeast	4.0
10:00	3.5	southeast	4.1
10:10	3.6	east-southeast	3.9
10:20	3.5	southeast	3.5
10:30	3.6	east-southeast	3.8
10:40	3.6	east-southeast	3.9
10:50	3.5	east-southeast	4.3
11:00	3.6	southeast	4.1
11:10	3.5	southeast	4.0
11:20	3.5	southeast	3.5
11:30	3.6	southeast	4.2
11:40	3.5	southeast	3.5
11:50	3.5	southeast	3.7
12:00	3.7	southeast	3.5
12:10	3.6	southeast	3.3
12:20	3.7	southeast	3.8
12:30	3.6	southeast	3.5
12:40	3.6	southeast	3.9
12:50	3.5	south-southeast	2.9
13:00	3.5	south-southeast	3.0
13:10	3.6	south-southeast	3.5
13:20	3.4	south-southeast	4.5
13:30	3.4	southeast	4.4
13:40	3.5	south-southeast	4.7
13:50	3.5	south-southeast	4.5
14:00	3.6	southeast	4.3
14:10	3.6	southeast	4.7
14:20	3.7	southeast	4.3
14:30	3.6	south-southeast	4.1
14:40	3.6	southeast	4.8
14:50	3.5	southeast	4.9
15:00	3.5	southeast	4.2
15:10	3.7	southeast	4.5
15:20	3.4	southeast	4.8
15:30	3.6	southeast	4.6
15:40	3.6	southeast	4.0
15:50	3.6	east-southeast	3.6
16:00	3.6	southeast	4.2
16:10	3.6	southeast	3.2
16:20	3.6	south-southeast	3.4
16:30	3.6	southeast	3.9
16:40	3.6	southeast	3.6
16:50	3.6	southeast	3.4
17:00	3.5	southeast	3.7
17:10	3.6	southeast	3.3
17:20	3.6	southeast	4.0
17:30	3.6	southeast	3.4
17:40	3.5	southeast	3.5
17:50	3.5	southeast	3.6
18:00	3.6	southeast	3.1
18:10	3.5	southeast	2.8
18:20	3.6	south-southeast	2.5
18:30	3.7	south-southeast	2.6
18:40	3.7	southeast	2.6
18:50	3.6	southeast	3.6
19:00	3.5	southeast	3.4
19:10	3.5	southeast	3.4
19:20	3.6	southeast	2.8
19:30	3.6	southeast	2.4
19:40	3.5	southeast	2.3
19:50	3.6	southeast	2.4
20:00	3.6	southeast	2.3
20:10	3.5	southeast	2.4
20:20	3.7	southeast	2.1
20:30	3.6	south-southeast	2.1
20:40	3.6	southeast	1.6
20:50	3.6	south-southeast	2.3
21:00	3.6	south-southeast	2.2
21:10	3.6	south	1.9
21:20	3.5	south	1.5
21:30	3.6	south	1.2
21:40	3.5	southeast	1.6
21:50	3.6	southeast	2.0
22:00	3.6	south-southeast	1.8
22:10	3.6	south-southeast	1.9
22:20	3.6	south	2.9
22:30	3.3	south	2.5
22:40	3.4	south	2.6
22:50	3.4	south-southeast	2.6
23:00	3.5	south	2.6
23:10	3.5	south-southeast	2.5
23:20	3.6	south-southeast	2.4
23:30	3.6	south	2.7
23:40	3.6	south	2.4
23:50	3.6	south	2.3