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

○Information

○Measurement value list ： 2026/08/17(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	3.5	south-southeast	0.6
00:10	3.7	south-southwest	0.7
00:20	3.7	south-southwest	0.6
00:30	3.6	-	CALM
00:40	3.5	-	CALM
00:50	3.6	south-southwest	0.8
01:00	3.5	southwest	0.9
01:10	3.5	southwest	0.9
01:20	3.6	southwest	1.1
01:30	3.6	southwest	1.0
01:40	3.5	-	CALM
01:50	3.6	-	CALM
02:00	3.7	-	CALM
02:10	3.7	south-southwest	1.0
02:20	3.5	south-southwest	0.8
02:30	3.6	south	0.9
02:40	3.5	south	0.9
02:50	3.5	south	0.9
03:00	3.7	south-southeast	1.1
03:10	3.6	south-southeast	1.1
03:20	3.5	south-southeast	0.9
03:30	3.6	southeast	0.9
03:40	3.5	southeast	0.9
03:50	3.4	south-southwest	1.0
04:00	3.6	south-southeast	0.6
04:10	3.6	southwest	1.0
04:20	3.6	southwest	1.1
04:30	3.5	southwest	1.4
04:40	3.5	southwest	1.6
04:50	3.5	southwest	1.7
05:00	3.6	south-southwest	1.1
05:10	3.4	southwest	1.0
05:20	3.7	south-southwest	0.9
05:30	3.6	south	1.1
05:40	3.6	-	-
05:50	3.7	south-southwest	1.1
06:00	3.7	southwest	1.7
06:10	3.5	south-southwest	0.7
06:20	3.5	south	0.7
06:30	3.6	south	0.8
06:40	3.5	south	1.0
06:50	3.4	southeast	1.1
07:00	3.4	southeast	0.8
07:10	3.6	east-southeast	0.7
07:20	3.5	south	0.9
07:30	3.5	south-southwest	1.1
07:40	3.4	south-southwest	1.3
07:50	3.6	south	1.2
08:00	3.5	south	1.5
08:10	3.7	-	CALM
08:20	3.5	south-southeast	1.1
08:30	3.5	southeast	1.5
08:40	3.6	east-southeast	1.8
08:50	3.6	east-southeast	1.4
09:00	3.5	southeast	2.3
09:10	3.4	east-southeast	2.3
09:20	3.5	east-southeast	2.2
09:30	3.4	east-southeast	2.6
09:40	3.5	east	3.4
09:50	3.7	east-southeast	3.2
10:00	3.6	east-southeast	3.1
10:10	3.6	east-southeast	2.8
10:20	3.5	east	3.3
10:30	3.4	east-southeast	3.0
10:40	3.6	east	4.4
10:50	3.5	east	3.2
11:00	3.4	east-southeast	2.9
11:10	3.5	east	3.5
11:20	3.5	east-southeast	2.8
11:30	3.6	southeast	3.0
11:40	3.6	southeast	2.8
11:50	3.4	southeast	3.0
12:00	3.5	southeast	3.2
12:10	3.6	southeast	3.7
12:20	3.7	southeast	3.5
12:30	3.4	southeast	3.7
12:40	3.5	southeast	4.2
12:50	3.5	southeast	3.9
13:00	3.5	southeast	4.2
13:10	3.6	southeast	4.3
13:20	3.5	south-southeast	4.1
13:30	3.6	southeast	4.2
13:40	3.6	south-southeast	4.4
13:50	3.6	south-southeast	4.3
14:00	3.5	southeast	5.1
14:10	3.5	south-southeast	4.2
14:20	3.6	southeast	4.0
14:30	3.6	south-southeast	3.8
14:40	3.5	south-southeast	3.8
14:50	3.5	south-southeast	3.5
15:00	3.5	southeast	3.6
15:10	3.5	southeast	4.7
15:20	3.6	southeast	4.3
15:30	3.6	southeast	4.8
15:40	3.7	southeast	5.5
15:50	3.5	southeast	5.1
16:00	3.5	south-southeast	5.4
16:10	3.4	southeast	5.1
16:20	3.6	southeast	5.1
16:30	3.6	south-southeast	5.5
16:40	3.4	southeast	5.2
16:50	3.5	southeast	5.4
17:00	3.6	south-southeast	5.2
17:10	3.7	south-southeast	5.2
17:20	3.6	south-southeast	5.7
17:30	3.6	south-southeast	5.7
17:40	3.6	south-southeast	5.6
17:50	3.5	south-southeast	5.1
18:00	3.5	south-southeast	5.4
18:10	3.5	south-southeast	5.9
18:20	3.5	south-southeast	6.2
18:30	3.7	south-southeast	5.7
18:40	3.3	south-southeast	5.5
18:50	3.5	south-southeast	5.0
19:00	3.5	south-southeast	4.7
19:10	3.4	south-southeast	4.4
19:20	3.4	south-southeast	4.9
19:30	3.5	south-southeast	5.1
19:40	3.6	south-southeast	5.4
19:50	3.5	south-southeast	5.2
20:00	3.5	south-southeast	4.8
20:10	3.6	south-southeast	3.5
20:20	3.6	south-southeast	3.5
20:30	3.6	southeast	3.6
20:40	3.6	south-southeast	4.4
20:50	3.6	south-southeast	4.1
21:00	3.6	south-southeast	4.1
21:10	3.6	south-southeast	4.8
21:20	3.6	south-southeast	4.9
21:30	3.7	south-southeast	4.3
21:40	3.5	south-southeast	4.2
21:50	3.5	south-southeast	3.5
22:00	3.5	south-southeast	2.8
22:10	3.5	south	3.0
22:20	3.6	south	3.0
22:30	3.6	south-southwest	2.4
22:40	3.6	south-southwest	2.9
22:50	3.5	south	2.9
23:00	3.5	south	3.1
23:10	3.6	south-southeast	3.1
23:20	3.5	south-southeast	3.4
23:30	3.6	south	3.3
23:40	3.7	south	3.0
23:50	3.6	south	2.9