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

○Information

○Measurement value list ： 2026/05/16(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	-	CALM
00:10	3.6	south-southwest	0.9
00:20	3.7	south-southwest	1.8
00:30	3.6	south-southwest	1.7
00:40	3.5	south	1.4
00:50	3.6	south-southeast	1.9
01:00	3.8	south	1.8
01:10	3.6	southwest	1.4
01:20	3.5	west	1.3
01:30	3.5	west-northwest	1.4
01:40	3.7	northwest	1.9
01:50	3.6	northwest	3.4
02:00	3.5	northwest	5.1
02:10	3.7	northwest	5.6
02:20	3.7	northwest	5.4
02:30	3.6	north-northwest	5.5
02:40	3.6	north-northwest	5.2
02:50	3.6	north-northwest	5.0
03:00	3.6	north-northwest	4.4
03:10	3.4	north-northwest	3.0
03:20	3.6	north	1.3
03:30	3.6	north-northeast	0.9
03:40	3.6	north-northwest	1.3
03:50	3.7	northwest	2.5
04:00	3.6	northwest	2.8
04:10	3.4	northwest	2.9
04:20	3.6	north-northwest	3.3
04:30	3.7	north-northwest	3.6
04:40	3.6	north-northwest	3.5
04:50	3.6	north-northwest	3.8
05:00	3.5	northwest	4.3
05:10	3.4	northwest	4.4
05:20	3.6	north-northwest	4.2
05:30	3.4	northwest	4.4
05:40	3.6	northwest	4.8
05:50	3.5	northwest	4.7
06:00	3.6	northwest	4.7
06:10	3.5	northwest	4.3
06:20	3.5	north-northwest	3.4
06:30	3.7	north-northwest	3.0
06:40	3.4	north-northwest	2.4
06:50	3.7	north	2.1
07:00	3.5	north	1.0
07:10	3.5	northeast	1.0
07:20	3.5	north-northeast	1.6
07:30	3.5	east-northeast	0.7
07:40	3.6	north-northeast	1.2
07:50	3.7	northeast	1.6
08:00	3.4	north-northeast	1.2
08:10	3.4	north-northeast	2.0
08:20	3.6	north	2.2
08:30	3.5	north-northwest	1.1
08:40	3.7	northeast	1.5
08:50	3.6	northeast	1.5
09:00	3.7	north-northeast	1.9
09:10	3.5	northeast	1.8
09:20	3.4	northeast	1.7
09:30	3.6	east-northeast	2.1
09:40	3.5	east-northeast	1.9
09:50	3.6	east	2.3
10:00	3.8	east-southeast	2.1
10:10	3.4	east-southeast	1.6
10:20	3.7	southwest	0.8
10:30	3.6	southeast	0.6
10:40	3.7	east-northeast	1.0
10:50	3.7	east	2.7
11:00	3.6	east-southeast	3.3
11:10	3.5	east	3.6
11:20	3.5	southeast	4.3
11:30	3.7	east-southeast	3.5
11:40	3.7	south-southeast	3.2
11:50	3.6	southeast	3.6
12:00	3.5	southeast	4.2
12:10	3.7	southeast	4.6
12:20	3.6	southeast	4.7
12:30	3.7	southeast	5.4
12:40	3.5	south-southeast	5.2
12:50	3.6	southeast	4.6
13:00	3.6	south-southeast	4.9
13:10	3.5	southeast	5.5
13:20	3.5	southeast	4.8
13:30	3.6	south-southeast	5.1
13:40	3.4	southeast	4.9
13:50	3.6	southeast	5.2
14:00	3.7	southeast	5.6
14:10	3.6	southeast	5.6
14:20	3.5	south-southeast	5.0
14:30	3.6	southeast	5.3
14:40	3.6	southeast	5.4
14:50	3.5	southeast	5.9
15:00	3.6	southeast	5.9
15:10	3.6	south-southeast	6.0
15:20	3.6	southeast	5.0
15:30	3.5	southeast	4.7
15:40	3.8	southeast	4.6
15:50	3.6	southeast	4.5
16:00	3.5	south-southeast	4.3
16:10	3.6	southeast	4.0
16:20	3.5	south-southeast	3.7
16:30	3.6	south-southeast	3.4
16:40	3.6	south-southeast	3.6
16:50	3.6	south-southeast	4.4
17:00	3.5	south-southeast	4.4
17:10	3.6	south-southeast	3.9
17:20	3.5	southeast	4.8
17:30	3.8	south-southeast	4.5
17:40	3.5	south-southeast	5.4
17:50	3.6	south-southeast	5.2
18:00	3.5	south-southeast	5.2
18:10	3.6	south-southeast	4.6
18:20	3.7	south	3.6
18:30	3.5	south	3.9
18:40	3.4	south-southeast	4.0
18:50	3.6	south-southeast	4.1
19:00	3.6	south	3.9
19:10	3.5	south	3.6
19:20	3.6	south	3.9
19:30	3.6	south	4.0
19:40	3.6	south	3.4
19:50	3.5	south	3.2
20:00	3.7	south	2.8
20:10	3.5	south	2.9
20:20	3.4	south	2.9
20:30	3.6	south	3.1
20:40	3.6	south-southwest	2.9
20:50	3.7	southwest	3.0
21:00	3.7	southwest	2.5
21:10	3.7	southwest	2.4
21:20	3.6	south-southwest	1.1
21:30	3.6	southwest	1.5
21:40	3.6	west	1.9
21:50	3.7	west	2.1
22:00	3.7	west-northwest	1.8
22:10	3.6	north-northwest	1.5
22:20	3.5	northeast	1.9
22:30	3.5	east-northeast	2.3
22:40	3.5	east-northeast	2.5
22:50	3.6	northeast	1.4
23:00	3.6	north-northwest	0.8
23:10	3.6	north-northwest	0.9
23:20	3.4	northwest	1.1
23:30	3.7	-	CALM
23:40	3.5	west-northwest	1.1
23:50	3.5	northwest	1.7