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

○Information

○Measurement value list ： 2026/08/18(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	3.4	south-southeast	2.8
00:10	3.4	south	3.2
00:20	3.5	south	3.0
00:30	3.6	south	3.0
00:40	3.6	south	2.3
00:50	3.8	south	2.5
01:00	3.5	south	2.8
01:10	3.4	south-southwest	2.7
01:20	3.5	south-southwest	2.8
01:30	3.5	south-southwest	3.1
01:40	3.4	south-southwest	3.1
01:50	3.5	south-southwest	2.6
02:00	3.6	south-southwest	3.0
02:10	3.6	south-southwest	2.6
02:20	3.5	south-southwest	1.9
02:30	3.6	south	1.3
02:40	3.5	-	-
02:50	3.5	-	-
03:00	3.4	south	2.5
03:10	3.7	south	2.1
03:20	3.5	south	2.6
03:30	3.6	south	2.7
03:40	3.5	south-southeast	2.6
03:50	3.5	south-southeast	2.8
04:00	3.4	south-southeast	3.2
04:10	3.5	south	2.7
04:20	3.7	south-southwest	3.1
04:30	3.5	south	2.4
04:40	3.6	south-southwest	2.5
04:50	3.5	south	2.8
05:00	3.5	south	3.8
05:10	3.6	south	3.8
05:20	3.5	south-southwest	3.7
05:30	3.6	south-southwest	3.6
05:40	3.4	south-southwest	2.3
05:50	3.5	south-southwest	1.8
06:00	3.6	south-southwest	1.6
06:10	3.6	south-southwest	1.9
06:20	3.5	south	2.8
06:30	3.5	south-southeast	3.4
06:40	3.3	south	3.6
06:50	3.5	south-southeast	3.7
07:00	3.6	south-southeast	2.7
07:10	3.7	south	3.3
07:20	3.5	south-southeast	3.8
07:30	3.6	south-southeast	3.2
07:40	3.6	south-southeast	3.6
07:50	3.7	south	3.8
08:00	3.6	south-southeast	3.3
08:10	3.6	south-southeast	4.6
08:20	3.5	south-southeast	3.1
08:30	3.5	south	3.4
08:40	3.5	south-southeast	3.5
08:50	3.5	south-southeast	2.9
09:00	3.6	southeast	3.3
09:10	3.6	south-southeast	4.7
09:20	3.5	southeast	4.9
09:30	3.6	southeast	5.5
09:40	3.5	south-southeast	5.0
09:50	3.5	southeast	5.8
10:00	3.7	south-southeast	6.0
10:10	3.6	south-southeast	4.7
10:20	3.5	south-southeast	5.0
10:30	3.5	southeast	5.2
10:40	3.5	south-southeast	6.2
10:50	3.5	south-southeast	5.6
11:00	3.5	south-southeast	5.1
11:10	3.4	southeast	5.4
11:20	3.7	south-southeast	5.8
11:30	3.6	south-southeast	5.4
11:40	3.6	south-southeast	6.0
11:50	3.5	south-southeast	6.6
12:00	3.5	southeast	7.2
12:10	3.6	south-southeast	7.8
12:20	3.6	south-southeast	6.6
12:30	3.7	south-southeast	6.0
12:40	3.5	southeast	6.5
12:50	3.5	south-southeast	6.7
13:00	3.6	southeast	6.6
13:10	3.5	southeast	6.1
13:20	3.4	south-southeast	7.0
13:30	3.6	south-southeast	7.0
13:40	3.5	south-southeast	6.6
13:50	3.6	south-southeast	6.3
14:00	3.6	south-southeast	7.2
14:10	3.5	south-southeast	6.9
14:20	3.5	south-southeast	6.9
14:30	3.4	south-southeast	5.7
14:40	3.5	south-southeast	6.4
14:50	3.7	south-southeast	7.5
15:00	3.4	south-southeast	6.1
15:10	3.4	south-southeast	6.7
15:20	3.5	south-southeast	6.9
15:30	3.5	south-southeast	7.4
15:40	3.3	south-southeast	7.5
15:50	3.7	southeast	8.1
16:00	3.6	south-southeast	8.3
16:10	3.6	south-southeast	8.5
16:20	3.5	south-southeast	8.5
16:30	3.5	south-southeast	7.8
16:40	3.6	south-southeast	7.5
16:50	3.6	south-southeast	7.6
17:00	3.5	south-southeast	7.7
17:10	3.5	south-southeast	7.7
17:20	3.6	south-southeast	7.6
17:30	3.6	south-southeast	7.9
17:40	3.6	south-southeast	7.5
17:50	3.5	south-southeast	7.4
18:00	3.5	south-southeast	7.8
18:10	3.5	south	7.9
18:20	3.5	south-southeast	7.8
18:30	3.5	south-southeast	7.6
18:40	3.5	south-southeast	7.3
18:50	3.5	south-southeast	7.4
19:00	3.6	south-southeast	7.0
19:10	3.5	south-southeast	6.2
19:20	3.6	south	6.0
19:30	3.6	south	6.5
19:40	3.5	south	5.7
19:50	3.6	south	4.5
20:00	3.7	south	5.5
20:10	3.6	south	5.2
20:20	3.6	south	4.8
20:30	3.5	south	5.0
20:40	3.5	south	4.9
20:50	3.4	south-southeast	5.2
21:00	3.5	south-southeast	5.1
21:10	3.6	south-southeast	5.5
21:20	3.6	south	4.8
21:30	3.7	south	4.9
21:40	3.5	south	5.2
21:50	3.7	south	4.9
22:00	3.5	south	4.9
22:10	3.5	south	5.1
22:20	3.6	south	6.2
22:30	3.4	south	6.0
22:40	3.4	south	5.6
22:50	3.3	south	6.2
23:00	3.6	south	6.0
23:10	3.6	south	5.1
23:20	3.5	south	5.3
23:30	3.5	south	5.3
23:40	3.5	south	6.0
23:50	3.5	south	6.1