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

○Information

○Measurement value list ： 2026/07/12(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	southeast	2.5
00:10	3.6	southeast	3.7
00:20	3.6	south-southeast	4.1
00:30	3.5	south-southeast	4.5
00:40	3.7	south-southeast	4.0
00:50	3.5	south-southeast	4.3
01:00	3.5	south-southeast	4.2
01:10	3.4	south-southeast	4.3
01:20	3.5	south	4.3
01:30	3.5	south	5.0
01:40	3.5	south	5.3
01:50	3.3	south	5.3
02:00	3.3	south	5.6
02:10	3.6	south	4.3
02:20	3.5	south	3.1
02:30	3.5	south	3.6
02:40	3.7	south	3.5
02:50	3.7	south	6.2
03:00	3.5	south	5.9
03:10	3.6	south	5.8
03:20	3.4	south	6.6
03:30	3.5	south	5.2
03:40	3.5	south	6.3
03:50	3.6	south	6.1
04:00	3.5	south	5.9
04:10	3.7	south	5.9
04:20	3.6	south	5.4
04:30	3.4	south	5.6
04:40	3.5	south-southwest	4.4
04:50	3.7	south-southwest	3.0
05:00	3.5	south-southwest	3.0
05:10	3.6	south-southwest	3.5
05:20	3.6	south-southwest	3.0
05:30	3.4	south-southwest	4.2
05:40	3.4	south-southwest	4.4
05:50	3.5	south-southwest	4.1
06:00	3.4	south	1.7
06:10	3.6	south	2.1
06:20	3.6	south-southwest	3.3
06:30	3.6	south	4.4
06:40	3.4	south-southwest	4.5
06:50	3.6	southwest	3.5
07:00	3.4	south-southwest	3.9
07:10	3.7	south-southwest	3.2
07:20	3.6	south	2.8
07:30	3.7	south-southwest	1.8
07:40	3.5	south-southwest	0.9
07:50	3.5	southwest	1.2
08:00	3.4	-	CALM
08:10	3.7	-	CALM
08:20	3.6	-	CALM
08:30	3.5	southeast	0.7
08:40	3.6	southeast	0.6
08:50	3.5	south	0.8
09:00	3.7	south	1.2
09:10	3.5	south	2.2
09:20	3.5	south	1.9
09:30	3.7	south	2.4
09:40	3.5	south	2.5
09:50	3.5	south	2.9
10:00	3.5	south	3.6
10:10	3.4	south	3.0
10:20	3.4	south	2.5
10:30	3.5	south	2.8
10:40	3.5	south	1.7
10:50	3.6	south-southwest	1.7
11:00	3.5	south	2.0
11:10	3.5	south-southeast	2.0
11:20	3.5	south	2.3
11:30	3.7	south	2.6
11:40	3.6	south	1.8
11:50	3.5	south-southwest	2.5
12:00	3.5	south-southwest	4.0
12:10	3.4	south-southwest	5.2
12:20	3.6	south-southwest	5.0
12:30	3.6	southwest	5.2
12:40	3.5	southwest	6.4
12:50	3.6	southwest	6.4
13:00	3.5	southwest	7.1
13:10	3.5	southwest	6.6
13:20	3.6	southwest	6.8
13:30	3.5	southwest	6.6
13:40	3.4	south-southwest	6.7
13:50	3.6	south-southwest	7.3
14:00	3.6	south	7.4
14:10	3.7	south	7.2
14:20	3.6	south	6.6
14:30	3.6	south	6.8
14:40	3.5	south	6.5
14:50	3.6	south	7.0
15:00	3.5	south	8.0
15:10	3.6	south	7.1
15:20	3.5	south-southwest	6.8
15:30	3.4	south	6.5
15:40	3.4	south	7.1
15:50	3.5	south	5.9
16:00	3.5	south-southwest	7.1
16:10	3.6	south-southwest	6.6
16:20	3.5	south-southwest	7.2
16:30	3.6	south-southwest	7.3
16:40	3.6	south	7.4
16:50	3.6	south-southwest	7.5
17:00	3.6	south	7.4
17:10	3.5	south	7.5
17:20	3.7	south	7.4
17:30	3.5	south	8.4
17:40	3.8	south	7.4
17:50	3.5	south	7.6
18:00	3.6	south	6.9
18:10	3.6	south-southwest	7.1
18:20	3.6	south	7.3
18:30	3.6	south	7.4
18:40	3.7	south	7.7
18:50	3.5	south-southwest	7.6
19:00	3.5	south-southwest	7.2
19:10	3.6	south-southwest	7.0
19:20	3.6	south-southwest	7.4
19:30	3.5	south-southwest	7.1
19:40	3.7	south-southwest	7.4
19:50	3.6	south-southwest	7.2
20:00	3.6	south-southwest	6.8
20:10	3.6	south-southwest	6.3
20:20	3.5	south-southwest	5.6
20:30	3.5	south-southwest	5.2
20:40	3.4	south-southwest	4.2
20:50	3.4	south-southwest	2.5
21:00	3.6	-	-
21:10	3.3	south	3.0
21:20	3.6	south	3.8
21:30	3.6	south	2.7
21:40	3.5	south	3.5
21:50	3.7	south	3.7
22:00	3.3	south-southwest	3.9
22:10	3.4	south-southwest	4.2
22:20	3.4	south	4.7
22:30	3.5	south	4.8
22:40	3.6	south	3.3
22:50	3.5	southwest	3.7
23:00	3.5	southwest	4.8
23:10	3.5	west-southwest	5.2
23:20	3.6	west-southwest	4.2
23:30	3.7	west-southwest	4.3
23:40	3.5	west-southwest	3.6
23:50	3.5	southwest	4.6