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

○Information

○Measurement value list ： 2026/07/17(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	-	CALM
00:10	3.5	-	CALM
00:20	3.6	-	CALM
00:30	3.5	-	CALM
00:40	3.5	east-southeast	0.7
00:50	3.6	south	0.9
01:00	3.4	south-southeast	1.0
01:10	3.6	south-southeast	2.1
01:20	3.6	south-southeast	2.9
01:30	3.6	south-southeast	2.7
01:40	3.7	south-southeast	2.2
01:50	3.5	south-southeast	2.1
02:00	3.6	south	2.2
02:10	3.6	south	1.4
02:20	3.6	south	1.2
02:30	3.4	southwest	0.9
02:40	3.6	-	CALM
02:50	3.5	west-southwest	0.8
03:00	3.5	west-southwest	1.2
03:10	3.7	-	CALM
03:20	3.5	east-southeast	1.5
03:30	3.5	southeast	1.9
03:40	3.5	south-southeast	1.4
03:50	3.5	south-southeast	1.2
04:00	3.5	southeast	2.3
04:10	3.6	southeast	1.7
04:20	3.5	south-southeast	3.0
04:30	3.6	south-southeast	2.6
04:40	3.7	south	1.8
04:50	3.6	south-southwest	0.7
05:00	3.5	-	CALM
05:10	3.6	north-northwest	0.9
05:20	3.5	north	1.0
05:30	3.7	northeast	0.6
05:40	3.5	east-southeast	0.9
05:50	3.5	east-southeast	0.7
06:00	3.5	-	CALM
06:10	3.6	-	CALM
06:20	3.5	northwest	1.0
06:30	3.5	northwest	3.3
06:40	3.6	northeast	2.3
06:50	3.5	northeast	1.9
07:00	3.6	east-northeast	2.3
07:10	3.4	east	2.0
07:20	3.6	south-southeast	1.5
07:30	3.7	south-southeast	1.5
07:40	3.5	south	1.9
07:50	3.4	southwest	1.3
08:00	3.6	-	CALM
08:10	3.6	west-southwest	1.0
08:20	3.6	west-southwest	0.8
08:30	3.4	-	CALM
08:40	3.5	-	CALM
08:50	3.6	southeast	0.8
09:00	3.5	-	CALM
09:10	3.6	-	CALM
09:20	3.7	south-southwest	0.8
09:30	3.6	-	CALM
09:40	3.5	east-southeast	1.8
09:50	3.6	south-southeast	3.2
10:00	3.5	south-southeast	3.9
10:10	3.6	south-southeast	4.2
10:20	3.4	south-southeast	3.7
10:30	3.6	southeast	3.4
10:40	3.5	south-southeast	3.9
10:50	3.7	south-southeast	2.7
11:00	3.5	south-southeast	2.6
11:10	3.6	southeast	2.4
11:20	3.4	south-southeast	3.1
11:30	3.4	south-southeast	3.7
11:40	3.7	south-southeast	5.2
11:50	3.5	south-southeast	5.3
12:00	3.6	south-southeast	4.7
12:10	3.5	south-southeast	5.8
12:20	3.5	south-southeast	5.0
12:30	3.6	south-southeast	6.0
12:40	3.7	south-southeast	6.2
12:50	3.4	south-southeast	6.6
13:00	3.6	south-southeast	5.5
13:10	3.5	south-southeast	4.9
13:20	3.5	south	5.5
13:30	3.4	south-southeast	5.6
13:40	3.5	south-southeast	5.8
13:50	3.4	south-southeast	4.9
14:00	3.5	south-southeast	4.4
14:10	3.6	south-southeast	4.4
14:20	3.5	south-southeast	5.0
14:30	3.6	south-southeast	5.3
14:40	3.5	south-southeast	5.0
14:50	3.4	south-southeast	6.0
15:00	3.4	south	5.7
15:10	3.5	south	5.8
15:20	3.6	south	5.5
15:30	3.5	south	6.1
15:40	3.6	south	4.5
15:50	3.4	south	4.2
16:00	3.5	south-southeast	4.5
16:10	3.6	south-southeast	5.3
16:20	3.5	south-southeast	6.0
16:30	3.6	south-southeast	5.6
16:40	3.4	south-southeast	6.3
16:50	3.5	south	5.3
17:00	3.6	south-southeast	4.8
17:10	3.6	south	5.4
17:20	3.5	south	5.1
17:30	3.7	south	5.1
17:40	3.6	south	5.1
17:50	3.7	south	4.4
18:00	3.5	south	3.8
18:10	3.6	south-southeast	4.8
18:20	3.6	south-southeast	5.3
18:30	3.4	south	5.3
18:40	3.5	south	3.9
18:50	3.5	south	4.9
19:00	3.6	south	4.2
19:10	3.6	south	4.5
19:20	3.6	south	4.5
19:30	3.4	south-southeast	4.5
19:40	3.5	south	5.5
19:50	3.5	south	6.0
20:00	3.4	south	4.6
20:10	3.6	south	5.0
20:20	3.4	south	5.0
20:30	3.4	south	3.9
20:40	3.5	south	4.0
20:50	3.5	south-southeast	3.6
21:00	3.6	south	3.5
21:10	3.5	south	4.1
21:20	3.4	south	5.1
21:30	3.5	south-southeast	4.0
21:40	3.5	south-southeast	4.6
21:50	3.7	south-southeast	5.1
22:00	3.5	south-southeast	5.1
22:10	3.7	south-southeast	6.0
22:20	3.5	south-southeast	5.3
22:30	3.4	south-southeast	5.1
22:40	3.7	south-southeast	5.3
22:50	3.7	south-southeast	5.5
23:00	3.6	south-southeast	6.2
23:10	3.5	south-southeast	6.0
23:20	3.6	south-southeast	5.2
23:30	3.6	south-southeast	6.0
23:40	3.5	south-southeast	6.1
23:50	3.7	south-southeast	5.1