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

○Information

○Measurement value list ： 2026/06/17(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-southwest	4.5
00:10	3.7	south-southwest	3.8
00:20	3.5	south	2.9
00:30	3.6	south	3.5
00:40	3.7	south	3.9
00:50	3.6	south	4.1
01:00	3.7	south	4.7
01:10	3.6	south	4.5
01:20	3.5	south	3.8
01:30	3.4	south	4.4
01:40	3.5	south	4.3
01:50	3.5	south	2.7
02:00	3.4	south-southwest	2.7
02:10	3.6	south	2.4
02:20	3.6	south-southwest	2.3
02:30	3.4	south-southwest	1.5
02:40	3.7	south	1.9
02:50	3.7	south	1.9
03:00	3.6	south-southwest	1.9
03:10	3.6	south-southwest	2.0
03:20	3.6	south-southwest	1.2
03:30	3.6	southwest	1.3
03:40	3.7	west-southwest	1.8
03:50	3.6	southwest	1.7
04:00	3.6	southwest	2.1
04:10	3.4	southwest	1.7
04:20	3.6	south-southwest	1.8
04:30	3.5	southwest	2.3
04:40	3.5	south-southwest	2.0
04:50	3.6	south-southwest	2.3
05:00	3.7	south-southwest	3.2
05:10	3.6	south-southwest	3.2
05:20	3.7	south-southwest	2.8
05:30	3.5	south	2.6
05:40	3.6	south-southwest	0.9
05:50	3.6	west	0.6
06:00	3.7	-	CALM
06:10	3.5	north-northwest	0.8
06:20	3.5	west-northwest	1.1
06:30	3.6	northwest	1.3
06:40	3.6	northeast	0.7
06:50	3.5	east-northeast	0.9
07:00	3.6	northeast	0.7
07:10	3.6	east-southeast	0.8
07:20	3.6	east-northeast	0.6
07:30	3.7	northeast	0.7
07:40	3.6	east	0.8
07:50	3.6	east-southeast	1.4
08:00	3.5	southeast	2.0
08:10	3.7	southeast	2.6
08:20	3.5	south-southeast	2.9
08:30	3.4	south-southeast	4.0
08:40	3.7	south-southeast	3.9
08:50	3.6	south-southeast	3.5
09:00	3.6	south-southeast	4.5
09:10	3.5	south-southeast	3.7
09:20	3.5	south-southeast	4.2
09:30	3.5	south-southeast	4.1
09:40	3.8	south-southeast	7.4
09:50	3.5	south-southeast	7.0
10:00	3.6	south-southeast	8.1
10:10	3.5	south-southeast	8.3
10:20	3.5	southeast	7.4
10:30	3.7	south-southeast	7.1
10:40	3.6	south-southeast	8.4
10:50	3.6	south	7.6
11:00	3.5	south-southeast	9.1
11:10	3.5	south-southeast	8.2
11:20	3.6	south-southeast	6.6
11:30	3.6	southeast	6.8
11:40	3.6	south-southeast	8.5
11:50	3.7	south-southeast	9.2
12:00	3.7	south-southeast	9.8
12:10	3.6	south-southeast	9.6
12:20	3.6	south-southeast	9.5
12:30	3.6	south-southeast	11.2
12:40	3.5	south-southeast	11.2
12:50	3.5	south-southeast	11.6
13:00	3.6	south-southeast	10.9
13:10	3.5	south-southeast	10.9
13:20	3.5	south-southeast	11.8
13:30	3.5	south-southeast	10.8
13:40	3.4	south-southeast	11.7
13:50	3.5	south-southeast	10.5
14:00	3.5	south-southeast	10.1
14:10	3.5	south-southeast	10.8
14:20	3.5	south-southeast	9.7
14:30	3.7	south-southeast	9.3
14:40	3.6	south-southeast	9.6
14:50	3.5	south-southeast	9.9
15:00	3.5	south-southeast	9.4
15:10	3.5	south-southeast	9.2
15:20	3.8	south-southeast	9.5
15:30	3.4	south-southeast	9.7
15:40	3.5	south-southeast	10.3
15:50	3.5	south-southeast	9.9
16:00	3.7	south-southeast	9.0
16:10	3.5	south-southeast	8.4
16:20	3.6	south-southeast	8.6
16:30	3.6	south-southeast	8.2
16:40	3.5	south-southeast	8.1
16:50	3.6	south-southeast	9.2
17:00	3.5	south-southeast	7.6
17:10	3.6	south-southeast	8.1
17:20	3.5	south-southeast	8.9
17:30	3.4	south-southeast	8.2
17:40	3.5	south-southeast	6.7
17:50	3.7	south	6.9
18:00	3.4	south-southeast	6.9
18:10	3.5	south	6.8
18:20	3.4	south-southeast	7.7
18:30	3.6	south	7.7
18:40	3.5	south	7.0
18:50	3.5	south	7.0
19:00	3.6	south	8.0
19:10	3.4	south	7.3
19:20	3.6	south	7.1
19:30	3.6	south-southeast	6.1
19:40	3.7	south-southeast	7.2
19:50	3.5	south	7.0
20:00	3.6	south	7.4
20:10	3.6	south	7.5
20:20	3.8	south-southeast	6.6
20:30	3.6	south	6.7
20:40	3.7	south	7.1
20:50	3.4	south	7.3
21:00	3.5	south	7.2
21:10	3.6	south	7.4
21:20	3.4	south	7.3
21:30	3.6	south	6.9
21:40	3.8	south	6.3
21:50	3.6	south-southeast	5.3
22:00	3.6	south	5.8
22:10	3.6	south	6.1
22:20	3.5	south	6.6
22:30	3.5	south	6.7
22:40	3.6	south	6.0
22:50	3.5	south-southeast	5.4
23:00	3.8	south	6.1
23:10	3.5	south	5.8
23:20	3.8	south	7.0
23:30	3.6	south	5.9
23:40	3.6	south	5.6
23:50	3.5	south	5.4