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

○Information

○Measurement value list ： 2026/05/07(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	south-southwest	4.4
00:10	3.5	south	4.2
00:20	3.5	south-southwest	4.3
00:30	3.6	south-southwest	4.7
00:40	3.5	south-southwest	5.1
00:50	3.6	south-southwest	5.0
01:00	3.7	south-southwest	5.8
01:10	3.6	south-southwest	5.9
01:20	3.5	south-southwest	5.9
01:30	3.5	south-southwest	5.0
01:40	3.5	south	4.4
01:50	3.7	south	5.1
02:00	3.6	south-southwest	4.7
02:10	3.5	south-southwest	4.7
02:20	3.5	south-southwest	3.1
02:30	3.6	south-southwest	4.3
02:40	3.5	south-southwest	4.0
02:50	3.5	south-southwest	4.0
03:00	3.7	south-southwest	2.6
03:10	3.5	south-southwest	2.1
03:20	3.6	south-southwest	2.4
03:30	3.6	south	2.0
03:40	3.5	south	3.3
03:50	3.7	south-southwest	3.6
04:00	3.5	southwest	1.7
04:10	3.5	west-northwest	1.7
04:20	3.6	-	CALM
04:30	3.7	-	CALM
04:40	3.7	-	CALM
04:50	3.5	northeast	0.9
05:00	3.7	north-northeast	0.6
05:10	3.7	north-northwest	1.3
05:20	3.6	north	0.9
05:30	3.6	north	1.6
05:40	3.6	north-northwest	2.2
05:50	3.6	northwest	2.7
06:00	3.5	northwest	3.4
06:10	3.6	northwest	4.2
06:20	3.5	northwest	4.0
06:30	3.5	northwest	2.6
06:40	3.5	northwest	1.9
06:50	3.5	north-northwest	0.9
07:00	3.6	-	CALM
07:10	3.6	northeast	1.0
07:20	3.6	northeast	1.0
07:30	3.5	northeast	1.5
07:40	3.5	east	1.2
07:50	3.6	east-northeast	1.8
08:00	3.6	east	1.0
08:10	3.5	northeast	2.1
08:20	3.7	northeast	2.8
08:30	3.5	northeast	2.5
08:40	3.6	northeast	2.9
08:50	3.6	east-northeast	2.7
09:00	3.4	northeast	3.1
09:10	3.5	east-northeast	3.2
09:20	3.7	northeast	1.7
09:30	3.6	northeast	2.2
09:40	3.6	northeast	1.7
09:50	3.6	east-northeast	1.8
10:00	3.5	east-northeast	1.7
10:10	3.6	east-northeast	2.0
10:20	3.5	east-northeast	1.9
10:30	3.6	east	2.4
10:40	3.7	east	1.6
10:50	3.8	east-southeast	2.0
11:00	3.5	east	2.8
11:10	3.7	east-southeast	2.7
11:20	3.7	east	2.6
11:30	3.6	southeast	2.4
11:40	3.5	east-southeast	2.9
11:50	3.5	southeast	3.2
12:00	3.5	southeast	3.8
12:10	3.5	southeast	3.8
12:20	3.4	southeast	3.5
12:30	3.5	southeast	2.7
12:40	3.5	east-southeast	3.1
12:50	3.6	southeast	4.1
13:00	3.5	southeast	3.7
13:10	3.7	south-southeast	4.4
13:20	3.5	southeast	4.0
13:30	3.6	southeast	4.2
13:40	3.5	southeast	3.7
13:50	3.5	south-southeast	4.2
14:00	3.6	southeast	4.3
14:10	3.6	southeast	5.2
14:20	3.6	southeast	5.5
14:30	3.6	south-southeast	5.7
14:40	3.6	south-southeast	5.1
14:50	3.6	south-southeast	5.1
15:00	3.4	south-southeast	4.4
15:10	3.6	southeast	4.6
15:20	3.6	south-southeast	5.8
15:30	3.6	southeast	7.0
15:40	3.7	southeast	6.7
15:50	3.6	southeast	5.8
16:00	3.4	south-southeast	6.0
16:10	3.5	south-southeast	6.4
16:20	3.6	southeast	5.7
16:30	3.5	southeast	4.3
16:40	3.5	southeast	4.2
16:50	3.4	southeast	5.3
17:00	3.6	southeast	6.0
17:10	3.7	southeast	6.5
17:20	3.7	south-southeast	5.3
17:30	3.6	south-southeast	4.6
17:40	3.6	south-southeast	4.9
17:50	3.5	south-southeast	4.5
18:00	3.7	south-southeast	3.6
18:10	3.6	south	3.6
18:20	3.6	south	3.5
18:30	3.6	south	2.7
18:40	3.3	south	2.4
18:50	3.4	south	2.1
19:00	3.6	south	2.1
19:10	3.6	south	2.3
19:20	3.5	south-southwest	1.8
19:30	3.6	west-southwest	1.1
19:40	3.6	south-southwest	1.9
19:50	3.7	south-southwest	2.6
20:00	3.6	south-southwest	2.4
20:10	3.6	south	1.7
20:20	3.8	south-southeast	1.8
20:30	3.5	southeast	1.0
20:40	3.6	south	0.9
20:50	3.7	south	0.6
21:00	3.7	south	0.8
21:10	3.6	west	1.1
21:20	3.6	northwest	1.7
21:30	3.6	northwest	2.3
21:40	3.7	north-northwest	3.1
21:50	3.7	north-northwest	3.5
22:00	3.5	north-northwest	3.4
22:10	3.5	north-northwest	4.1
22:20	3.6	north-northwest	4.5
22:30	3.4	north	3.3
22:40	3.7	north	3.6
22:50	3.6	north	3.6
23:00	3.5	north	2.9
23:10	3.6	north	2.2
23:20	3.6	north	2.6
23:30	3.7	north	2.1
23:40	3.6	north-northeast	1.4
23:50	3.6	-	CALM