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

○Information

○Measurement value list ： 2026/08/14(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	north-northwest	1.7
00:10	3.6	north-northwest	1.6
00:20	3.5	northwest	1.7
00:30	3.7	north-northwest	2.1
00:40	3.5	north	1.9
00:50	3.6	north	2.1
01:00	3.5	north	1.8
01:10	3.4	north-northwest	1.1
01:20	3.5	north	2.2
01:30	3.7	north-northwest	1.4
01:40	3.6	north-northeast	2.6
01:50	3.7	north	1.6
02:00	3.5	north-northeast	1.4
02:10	3.5	northeast	1.7
02:20	3.6	northeast	1.6
02:30	3.7	north-northeast	1.4
02:40	3.6	north-northeast	1.2
02:50	3.5	-	CALM
03:00	3.9	north	0.7
03:10	3.5	north-northeast	1.4
03:20	3.6	north	1.2
03:30	3.6	north	1.0
03:40	3.4	north	1.3
03:50	3.5	-	CALM
04:00	3.7	west-northwest	1.1
04:10	3.5	north-northeast	0.8
04:20	3.5	northeast	1.2
04:30	3.4	east-northeast	0.9
04:40	3.6	-	-
04:50	3.7	-	-
05:00	3.7	north	0.6
05:10	3.5	northwest	0.6
05:20	3.6	northwest	0.8
05:30	3.8	west-northwest	1.1
05:40	3.6	northwest	1.0
05:50	3.7	west-northwest	1.6
06:00	3.5	northwest	1.9
06:10	3.4	north	2.1
06:20	3.5	northwest	2.6
06:30	3.7	northwest	3.0
06:40	3.5	northwest	2.6
06:50	3.6	northwest	1.9
07:00	3.4	north-northwest	2.0
07:10	3.4	north-northwest	1.9
07:20	3.6	west-northwest	1.2
07:30	3.6	northwest	1.7
07:40	3.6	north-northwest	1.7
07:50	3.5	north	2.1
08:00	3.6	north	3.1
08:10	3.8	north	2.8
08:20	3.5	north	2.1
08:30	3.6	north	2.9
08:40	3.6	north-northeast	2.0
08:50	3.6	north-northeast	2.4
09:00	3.6	north-northeast	2.3
09:10	3.6	north-northeast	2.4
09:20	3.5	northeast	2.3
09:30	3.7	east-northeast	2.7
09:40	3.5	east-northeast	2.3
09:50	3.5	east-northeast	2.3
10:00	3.5	northeast	2.3
10:10	3.6	northeast	2.2
10:20	3.6	northeast	2.2
10:30	3.4	east	1.9
10:40	3.5	east-northeast	2.6
10:50	3.6	east-northeast	2.5
11:00	3.6	east-northeast	2.7
11:10	3.6	east	3.2
11:20	3.4	east	3.0
11:30	3.6	east	2.2
11:40	3.6	southeast	1.5
11:50	3.7	-	-
12:00	3.7	-	-
12:10	3.5	-	CALM
12:20	3.6	northwest	0.8
12:30	3.5	-	-
12:40	3.5	south	2.2
12:50	3.5	south	2.2
13:00	3.5	south-southwest	1.9
13:10	3.5	south	1.4
13:20	3.5	south-southwest	1.6
13:30	3.5	south	1.3
13:40	3.5	south	1.3
13:50	3.5	southeast	1.4
14:00	3.5	south-southeast	1.2
14:10	3.7	south-southwest	1.6
14:20	3.6	east	1.0
14:30	3.7	southeast	1.4
14:40	3.6	east-southeast	2.7
14:50	3.5	south-southeast	2.1
15:00	3.5	south-southwest	2.3
15:10	3.6	south-southwest	1.2
15:20	3.6	southeast	2.0
15:30	3.6	east-southeast	4.1
15:40	3.6	southeast	3.5
15:50	3.4	east-southeast	3.1
16:00	3.6	southeast	1.9
16:10	3.5	south-southeast	2.2
16:20	3.6	south-southeast	2.6
16:30	3.5	south-southeast	2.7
16:40	3.4	south-southeast	2.4
16:50	3.7	south-southeast	2.4
17:00	3.7	south	2.4
17:10	3.6	south-southeast	2.5
17:20	3.4	southeast	2.2
17:30	3.7	south-southeast	2.4
17:40	3.6	south-southeast	3.4
17:50	3.6	south-southeast	2.7
18:00	3.6	southeast	2.1
18:10	3.7	southeast	2.1
18:20	3.7	east-southeast	1.8
18:30	3.5	east-southeast	1.7
18:40	3.5	east-southeast	1.3
18:50	3.5	east-southeast	1.7
19:00	3.5	east-southeast	1.6
19:10	3.6	east-southeast	1.2
19:20	3.5	east-southeast	1.2
19:30	3.5	southeast	1.0
19:40	3.5	south-southeast	1.0
19:50	3.6	southeast	0.6
20:00	3.6	-	CALM
20:10	3.5	east	1.1
20:20	3.6	east-southeast	1.2
20:30	3.6	east-southeast	1.5
20:40	3.5	east-southeast	1.8
20:50	3.6	southeast	1.7
21:00	3.5	southeast	1.9
21:10	3.5	southeast	1.2
21:20	3.5	east-southeast	2.4
21:30	3.6	southeast	2.0
21:40	3.5	southeast	2.0
21:50	3.5	southeast	2.4
22:00	3.7	southeast	1.9
22:10	3.7	southeast	1.6
22:20	3.5	southeast	2.1
22:30	3.6	south-southeast	2.7
22:40	3.6	southeast	2.4
22:50	3.6	southeast	2.7
23:00	3.6	south-southeast	3.4
23:10	3.5	southeast	2.4
23:20	3.6	south-southeast	2.0
23:30	3.6	south	1.6
23:40	3.6	south-southeast	1.4
23:50	3.5	south-southeast	2.6