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

○Information

○Measurement value list ： 2026/06/13(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	south-southwest	1.6
00:10	3.6	southwest	1.5
00:20	3.6	west	1.8
00:30	3.6	west-northwest	0.6
00:40	3.7	-	CALM
00:50	3.6	-	CALM
01:00	3.6	south	1.4
01:10	3.4	south	1.4
01:20	3.7	-	CALM
01:30	3.6	-	CALM
01:40	3.5	-	CALM
01:50	3.7	northeast	0.7
02:00	3.5	northeast	1.1
02:10	3.5	east-northeast	1.3
02:20	3.6	northeast	1.0
02:30	3.6	north	0.7
02:40	3.6	north	0.7
02:50	3.6	northeast	1.1
03:00	3.7	northeast	1.1
03:10	3.4	northeast	0.6
03:20	3.6	-	CALM
03:30	3.6	-	CALM
03:40	3.5	-	CALM
03:50	3.4	north-northeast	0.7
04:00	3.6	north	0.7
04:10	3.8	north-northwest	1.3
04:20	3.6	north-northwest	1.3
04:30	3.5	northwest	1.2
04:40	3.7	west-northwest	1.3
04:50	3.5	west-southwest	1.3
05:00	3.6	south-southwest	0.6
05:10	3.5	south	1.4
05:20	3.5	south	1.7
05:30	3.6	south-southwest	1.5
05:40	3.7	south	1.4
05:50	3.6	south	1.6
06:00	3.5	south	1.8
06:10	3.6	south-southeast	1.4
06:20	3.6	south	1.3
06:30	3.4	south-southwest	0.9
06:40	3.5	southwest	1.4
06:50	3.7	southwest	1.0
07:00	3.5	-	CALM
07:10	3.5	-	CALM
07:20	3.5	east-northeast	1.3
07:30	3.6	east	1.2
07:40	3.5	east-southeast	1.4
07:50	3.6	southeast	1.7
08:00	3.6	southeast	1.8
08:10	3.7	east-southeast	1.9
08:20	3.6	east-southeast	2.3
08:30	3.5	east	2.4
08:40	3.5	east-southeast	2.6
08:50	3.8	east-southeast	2.6
09:00	3.6	east-southeast	2.6
09:10	3.5	southeast	2.8
09:20	3.6	east-southeast	3.3
09:30	3.6	southeast	4.5
09:40	3.6	southeast	4.8
09:50	3.6	southeast	5.1
10:00	3.5	southeast	5.5
10:10	3.6	southeast	5.1
10:20	3.5	southeast	5.4
10:30	3.7	southeast	4.4
10:40	3.6	south-southeast	5.0
10:50	3.6	southeast	5.9
11:00	3.7	southeast	5.2
11:10	3.6	southeast	5.9
11:20	3.6	southeast	6.0
11:30	3.7	south-southeast	5.6
11:40	3.6	south-southeast	6.7
11:50	3.5	south-southeast	7.6
12:00	3.5	south-southeast	7.5
12:10	3.5	south-southeast	8.1
12:20	3.7	south-southeast	7.6
12:30	3.5	southeast	7.0
12:40	3.6	southeast	7.3
12:50	3.5	south-southeast	7.5
13:00	3.5	south-southeast	8.2
13:10	3.5	south-southeast	8.1
13:20	3.6	south-southeast	7.4
13:30	3.4	south-southeast	7.1
13:40	3.5	south-southeast	7.9
13:50	3.7	south-southeast	7.9
14:00	3.4	south-southeast	7.7
14:10	3.5	south-southeast	8.4
14:20	3.8	south-southeast	7.5
14:30	3.6	south-southeast	7.0
14:40	3.6	south-southeast	7.6
14:50	3.6	south-southeast	8.2
15:00	3.5	south-southeast	8.2
15:10	3.5	south-southeast	7.6
15:20	3.5	south-southeast	6.2
15:30	3.6	south-southeast	7.1
15:40	3.7	south-southeast	7.7
15:50	3.6	south-southeast	8.2
16:00	3.5	south-southeast	8.5
16:10	3.5	south-southeast	7.8
16:20	3.5	south-southeast	5.0
16:30	3.5	east-southeast	2.3
16:40	3.7	southeast	5.7
16:50	3.6	southeast	3.7
17:00	3.7	south-southeast	2.5
17:10	3.5	west	2.1
17:20	3.6	west-southwest	7.5
17:30	3.5	southeast	3.5
17:40	3.6	northeast	1.5
17:50	3.6	west	2.2
18:00	3.6	west-southwest	2.5
18:10	3.7	south-southwest	2.3
18:20	3.5	south-southwest	2.7
18:30	3.6	southwest	4.8
18:40	3.6	southwest	3.8
18:50	3.6	west-southwest	3.4
19:00	3.4	west-southwest	2.6
19:10	3.6	northwest	2.6
19:20	3.5	west-northwest	2.2
19:30	3.5	west	1.2
19:40	3.6	south-southwest	1.4
19:50	3.5	south-southwest	1.5
20:00	3.5	south	2.6
20:10	3.5	south	1.7
20:20	3.4	south	0.8
20:30	3.5	south-southeast	0.7
20:40	3.7	-	CALM
20:50	3.6	-	CALM
21:00	3.6	southwest	0.7
21:10	3.6	-	CALM
21:20	3.5	northwest	1.3
21:30	3.5	north-northwest	2.3
21:40	3.6	west-northwest	5.5
21:50	3.4	west-northwest	4.7
22:00	3.5	northwest	3.5
22:10	3.5	northwest	3.4
22:20	3.5	north-northwest	3.6
22:30	3.8	north-northwest	4.4
22:40	3.5	northwest	5.0
22:50	3.5	west-northwest	4.7
23:00	3.5	northwest	3.9
23:10	3.6	northwest	2.6
23:20	3.6	northwest	3.3
23:30	3.7	northwest	3.2
23:40	3.4	northwest	3.3
23:50	3.5	north-northwest	2.3