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

○Information

○Measurement value list ： 2026/06/07(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	3.7	northwest	3.3
00:10	3.4	northwest	3.0
00:20	3.7	northwest	2.2
00:30	3.5	north-northwest	2.0
00:40	3.6	north	1.7
00:50	3.4	northwest	1.8
01:00	3.6	west-northwest	1.4
01:10	3.5	northwest	1.4
01:20	3.6	north-northwest	1.0
01:30	3.6	north-northwest	0.9
01:40	3.5	north-northeast	0.8
01:50	3.6	-	CALM
02:00	3.6	-	CALM
02:10	3.5	-	CALM
02:20	3.5	northwest	0.9
02:30	3.6	-	CALM
02:40	3.4	-	CALM
02:50	3.4	-	CALM
03:00	3.6	-	CALM
03:10	3.7	northeast	0.6
03:20	3.7	-	CALM
03:30	3.7	-	CALM
03:40	3.6	-	CALM
03:50	3.6	-	CALM
04:00	3.5	-	CALM
04:10	3.5	-	CALM
04:20	3.6	-	CALM
04:30	3.6	-	CALM
04:40	3.6	east-northeast	0.9
04:50	3.7	-	CALM
05:00	3.5	north-northeast	0.7
05:10	3.5	northeast	1.1
05:20	3.6	north-northeast	1.5
05:30	3.6	north-northeast	1.5
05:40	3.5	north-northeast	1.1
05:50	3.7	north	0.8
06:00	3.5	north	1.0
06:10	3.6	northeast	1.0
06:20	3.6	north-northeast	1.2
06:30	3.6	northeast	0.9
06:40	3.4	east-northeast	1.1
06:50	3.5	northeast	1.3
07:00	3.4	southeast	1.3
07:10	3.4	east	0.9
07:20	3.5	east	1.4
07:30	3.6	east-southeast	0.8
07:40	3.6	-	CALM
07:50	3.7	-	CALM
08:00	3.6	-	CALM
08:10	3.5	-	CALM
08:20	3.6	-	CALM
08:30	3.5	-	CALM
08:40	3.5	-	CALM
08:50	3.5	northwest	0.6
09:00	3.6	north-northeast	0.8
09:10	3.7	north-northwest	0.8
09:20	3.5	east-northeast	1.5
09:30	3.6	northeast	1.7
09:40	3.4	east-northeast	1.8
09:50	3.5	east	1.5
10:00	3.5	east-southeast	1.6
10:10	3.6	east-southeast	1.8
10:20	3.5	east	2.9
10:30	3.5	east	3.4
10:40	3.4	east-southeast	3.9
10:50	3.4	east-southeast	3.5
11:00	3.6	southeast	2.8
11:10	3.7	southeast	3.0
11:20	3.6	east-southeast	3.1
11:30	3.7	east-southeast	3.2
11:40	3.8	east-southeast	3.1
11:50	3.6	east-southeast	3.8
12:00	3.6	southeast	3.1
12:10	3.6	east-southeast	3.9
12:20	3.5	east-southeast	3.6
12:30	3.5	east-southeast	3.8
12:40	3.5	east	3.7
12:50	3.7	east-southeast	3.1
13:00	3.7	east-southeast	3.2
13:10	3.6	east-southeast	4.6
13:20	3.8	southeast	3.1
13:30	3.4	southeast	3.5
13:40	3.4	south-southeast	3.3
13:50	3.4	east-southeast	3.2
14:00	3.6	southeast	3.7
14:10	3.5	southeast	4.0
14:20	3.7	southeast	5.5
14:30	3.5	southeast	5.0
14:40	3.6	southeast	5.5
14:50	3.6	southeast	5.6
15:00	3.4	southeast	5.9
15:10	3.5	southeast	5.4
15:20	3.8	southeast	4.6
15:30	3.5	southeast	4.8
15:40	3.5	southeast	4.7
15:50	3.4	southeast	4.2
16:00	3.6	southeast	5.3
16:10	3.4	southeast	5.0
16:20	3.6	southeast	5.0
16:30	3.7	southeast	4.9
16:40	3.6	southeast	5.2
16:50	3.6	southeast	5.1
17:00	3.5	southeast	4.9
17:10	3.6	southeast	4.5
17:20	3.6	southeast	4.5
17:30	3.6	southeast	4.4
17:40	3.6	southeast	4.0
17:50	3.5	southeast	3.5
18:00	3.5	south-southeast	2.3
18:10	3.6	south-southeast	2.3
18:20	3.6	south-southeast	2.2
18:30	3.6	southeast	2.5
18:40	3.6	south-southeast	2.1
18:50	3.6	south-southeast	2.2
19:00	3.8	south-southeast	2.5
19:10	3.6	south	2.6
19:20	3.5	south	2.1
19:30	3.7	south	1.4
19:40	3.4	south-southwest	1.6
19:50	3.6	south	0.9
20:00	3.5	south-southeast	0.8
20:10	3.5	south-southeast	0.8
20:20	3.7	-	CALM
20:30	3.6	east-southeast	0.8
20:40	3.5	south-southeast	0.8
20:50	3.6	southeast	0.6
21:00	3.6	east-southeast	0.8
21:10	3.6	-	CALM
21:20	3.7	-	CALM
21:30	3.7	-	CALM
21:40	3.5	northeast	0.9
21:50	3.6	east-northeast	0.7
22:00	3.5	north-northeast	0.9
22:10	3.6	north-northwest	0.9
22:20	3.5	northeast	1.0
22:30	3.7	northeast	0.8
22:40	3.6	north	0.9
22:50	3.7	-	CALM
23:00	3.5	-	CALM
23:10	3.6	-	CALM
23:20	3.5	south-southeast	0.8
23:30	3.6	-	CALM
23:40	3.5	-	CALM
23:50	3.6	northwest	0.6