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

○Information

○Measurement value list ： 2026/08/08(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	4.4
00:10	3.4	south	4.4
00:20	3.6	south	4.0
00:30	3.6	south-southwest	3.5
00:40	3.6	south	3.4
00:50	3.5	south-southwest	2.1
01:00	3.6	southwest	1.5
01:10	3.5	southwest	1.9
01:20	3.5	south-southwest	2.9
01:30	3.5	southwest	2.3
01:40	3.4	south-southwest	2.9
01:50	3.6	south-southwest	3.2
02:00	3.6	south-southwest	2.9
02:10	3.6	southwest	3.0
02:20	3.7	west-southwest	2.6
02:30	3.6	west-southwest	1.7
02:40	3.5	west	0.7
02:50	3.7	southwest	1.2
03:00	3.6	south-southwest	1.2
03:10	3.6	south-southwest	1.6
03:20	3.6	south-southwest	1.5
03:30	3.6	south	1.7
03:40	3.5	south-southwest	3.6
03:50	3.7	south	3.2
04:00	3.6	south-southwest	2.9
04:10	3.6	south-southwest	2.5
04:20	3.6	south-southwest	1.7
04:30	3.3	south-southwest	1.2
04:40	3.5	southwest	1.8
04:50	3.7	west	1.7
05:00	3.7	west	1.2
05:10	3.8	west	1.3
05:20	3.5	west	0.6
05:30	3.5	-	CALM
05:40	3.6	-	CALM
05:50	3.6	west-northwest	0.9
06:00	3.5	northwest	1.7
06:10	3.5	northwest	2.5
06:20	3.7	north-northwest	2.6
06:30	3.7	northwest	2.3
06:40	3.5	north-northwest	2.7
06:50	3.6	north-northwest	2.2
07:00	3.4	north-northwest	1.1
07:10	3.5	north	0.9
07:20	3.6	southeast	0.6
07:30	3.5	south-southeast	1.1
07:40	3.4	south	1.2
07:50	3.5	south	1.8
08:00	3.7	south-southeast	1.7
08:10	3.4	southeast	2.4
08:20	3.6	southeast	2.2
08:30	3.7	southeast	2.3
08:40	3.5	southeast	1.9
08:50	3.5	east-southeast	2.5
09:00	3.6	east-southeast	2.8
09:10	3.7	east-southeast	3.2
09:20	3.7	southeast	3.8
09:30	3.6	southeast	4.1
09:40	3.4	southeast	3.4
09:50	3.6	southeast	3.8
10:00	3.4	southeast	4.0
10:10	3.6	southeast	4.1
10:20	3.4	southeast	4.5
10:30	3.5	southeast	4.0
10:40	3.6	southeast	4.0
10:50	3.5	southeast	3.8
11:00	3.4	south-southeast	4.4
11:10	3.7	south-southeast	4.6
11:20	3.5	south-southeast	4.9
11:30	3.6	southeast	5.0
11:40	3.4	southeast	4.1
11:50	3.6	south-southeast	5.2
12:00	3.7	south	5.4
12:10	3.6	south-southeast	4.0
12:20	3.6	south-southeast	4.2
12:30	3.6	south-southeast	3.8
12:40	3.5	southeast	4.3
12:50	3.6	south	4.6
13:00	3.6	south-southeast	4.2
13:10	3.6	south-southeast	4.2
13:20	3.7	south	4.7
13:30	3.7	south	4.8
13:40	3.6	south	4.5
13:50	3.7	south-southeast	4.7
14:00	3.8	south-southeast	4.4
14:10	3.5	south-southeast	5.5
14:20	3.6	south-southeast	4.7
14:30	3.5	south-southeast	4.5
14:40	3.5	south	3.8
14:50	3.7	south	4.6
15:00	3.6	south	3.9
15:10	3.6	south	3.6
15:20	3.5	south	4.3
15:30	3.6	south	5.2
15:40	3.5	south-southeast	6.2
15:50	3.6	south-southeast	5.9
16:00	3.6	south	5.9
16:10	3.5	south-southeast	4.9
16:20	3.4	south	4.6
16:30	3.5	south-southeast	3.8
16:40	3.5	south	3.3
16:50	3.4	south	3.1
17:00	3.6	south	2.5
17:10	3.4	south	3.2
17:20	3.5	south	3.6
17:30	3.4	south	3.9
17:40	3.5	south	4.5
17:50	3.7	south-southeast	4.5
18:00	3.5	south	4.4
18:10	3.4	south	3.3
18:20	3.5	south	3.7
18:30	3.3	south	4.2
18:40	3.5	south-southeast	3.7
18:50	3.5	south-southeast	4.5
19:00	3.7	south	4.0
19:10	3.6	south-southwest	2.4
19:20	3.4	south-southwest	2.0
19:30	3.6	southwest	0.7
19:40	3.5	-	CALM
19:50	3.6	west	0.7
20:00	3.6	south	0.7
20:10	3.5	south-southwest	0.9
20:20	3.5	southeast	1.4
20:30	3.4	south-southeast	2.4
20:40	3.5	south-southwest	1.8
20:50	3.5	west	1.7
21:00	3.6	west-northwest	1.5
21:10	3.5	north-northwest	2.1
21:20	3.5	north-northwest	3.1
21:30	3.5	north-northwest	3.0
21:40	3.5	northwest	2.2
21:50	3.7	northwest	1.1
22:00	3.6	northwest	0.9
22:10	3.6	north	1.3
22:20	3.5	northeast	0.6
22:30	3.5	-	CALM
22:40	3.6	-	CALM
22:50	3.4	-	CALM
23:00	3.5	southeast	0.7
23:10	3.6	east-southeast	1.4
23:20	3.4	east	0.9
23:30	3.5	east	1.4
23:40	3.6	east	1.0
23:50	3.5	east-southeast	1.0