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

○Information

○Measurement value list ： 2026/06/16(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	3.6	west-northwest	4.8
00:10	3.4	west-northwest	4.9
00:20	3.6	west-northwest	4.8
00:30	3.6	west-northwest	4.5
00:40	3.6	west-northwest	4.7
00:50	3.5	northwest	4.7
01:00	3.8	west-northwest	4.7
01:10	3.6	northwest	4.7
01:20	3.5	northwest	3.9
01:30	3.5	northwest	4.7
01:40	3.7	northwest	4.3
01:50	3.5	northwest	4.4
02:00	3.7	west-northwest	4.7
02:10	3.5	west-northwest	5.1
02:20	3.6	west-northwest	5.4
02:30	3.6	west-northwest	5.1
02:40	3.5	west-northwest	4.7
02:50	3.6	northwest	4.7
03:00	3.6	west-northwest	4.3
03:10	3.4	northwest	4.2
03:20	3.5	west-northwest	4.2
03:30	3.6	west-northwest	4.2
03:40	3.6	west-northwest	3.8
03:50	3.6	west-northwest	3.6
04:00	3.7	west-northwest	3.4
04:10	3.6	west-northwest	3.7
04:20	3.5	west-northwest	3.2
04:30	3.6	west-northwest	3.1
04:40	3.7	west-northwest	3.2
04:50	3.6	west-northwest	3.5
05:00	3.6	west-northwest	3.8
05:10	3.5	west-northwest	3.7
05:20	3.5	northwest	3.7
05:30	3.4	northwest	2.9
05:40	3.5	northwest	2.5
05:50	3.5	northwest	2.3
06:00	3.5	northwest	2.2
06:10	3.5	west-northwest	2.9
06:20	3.7	northwest	2.7
06:30	3.5	west-northwest	1.8
06:40	3.6	west-northwest	1.5
06:50	3.4	north-northwest	1.2
07:00	3.5	-	CALM
07:10	3.6	-	CALM
07:20	3.4	south-southeast	0.6
07:30	3.5	south	0.7
07:40	3.5	south-southeast	0.7
07:50	3.6	east-northeast	1.7
08:00	3.5	east	0.8
08:10	3.7	east	1.9
08:20	3.7	southeast	1.6
08:30	3.7	east-southeast	1.7
08:40	3.6	east-southeast	2.3
08:50	3.6	southeast	2.2
09:00	3.6	east-southeast	2.0
09:10	3.3	east-southeast	2.1
09:20	3.5	southeast	1.9
09:30	3.5	southeast	1.9
09:40	3.8	east-southeast	2.5
09:50	3.4	east-southeast	2.9
10:00	3.7	east-southeast	2.7
10:10	3.6	east-southeast	2.6
10:20	3.7	east-southeast	3.1
10:30	3.5	east-southeast	2.7
10:40	3.6	east-southeast	2.5
10:50	3.7	east	3.1
11:00	3.5	east-southeast	3.2
11:10	3.3	east-southeast	3.2
11:20	3.6	southeast	4.4
11:30	3.7	southeast	5.1
11:40	3.6	southeast	4.2
11:50	3.6	southeast	4.1
12:00	3.6	south-southeast	4.0
12:10	3.6	southeast	3.2
12:20	3.6	southeast	2.9
12:30	3.6	east-southeast	2.9
12:40	3.6	southeast	4.0
12:50	3.5	southeast	3.7
13:00	3.5	southeast	3.2
13:10	3.6	southeast	3.5
13:20	3.6	south-southeast	3.5
13:30	3.6	southeast	3.5
13:40	3.4	east-southeast	3.2
13:50	3.5	southeast	3.4
14:00	3.5	southeast	3.4
14:10	3.5	southeast	3.2
14:20	3.5	southeast	3.6
14:30	3.5	southeast	3.6
14:40	3.6	southeast	3.8
14:50	3.5	south-southeast	3.8
15:00	3.6	southeast	3.8
15:10	3.7	southeast	4.0
15:20	3.6	south-southeast	4.2
15:30	3.7	south-southeast	3.8
15:40	3.6	south-southeast	4.2
15:50	3.6	south-southeast	4.3
16:00	3.6	south-southeast	4.9
16:10	3.5	south-southeast	5.0
16:20	3.7	south-southeast	4.7
16:30	3.5	south-southeast	4.6
16:40	3.6	south-southeast	4.5
16:50	3.7	south-southeast	5.3
17:00	3.7	south-southeast	4.3
17:10	3.5	south-southeast	5.1
17:20	3.6	south-southeast	5.3
17:30	3.6	south-southeast	5.1
17:40	3.4	south-southeast	5.1
17:50	3.6	south-southeast	4.8
18:00	3.6	south-southeast	4.7
18:10	3.5	south	5.4
18:20	3.7	south	5.4
18:30	3.5	south	5.8
18:40	3.5	south	5.9
18:50	3.6	south	5.3
19:00	3.7	south	4.8
19:10	3.6	south	4.1
19:20	3.5	south	4.3
19:30	3.6	south	4.8
19:40	3.6	south	4.3
19:50	3.6	south	5.0
20:00	3.7	south	5.4
20:10	3.6	south	5.2
20:20	3.6	south	4.9
20:30	3.4	south	5.0
20:40	3.6	south	4.4
20:50	3.6	south	4.1
21:00	3.5	south	3.5
21:10	3.5	south	3.5
21:20	3.6	south	2.9
21:30	3.6	south	2.7
21:40	3.5	south	3.4
21:50	3.5	south	3.7
22:00	3.4	south	3.4
22:10	3.6	south	4.1
22:20	3.7	south	4.0
22:30	3.6	south	4.9
22:40	3.4	south	4.8
22:50	3.5	south	4.2
23:00	3.5	south-southeast	4.3
23:10	3.6	south-southeast	5.0
23:20	3.5	south	5.2
23:30	3.4	south	5.4
23:40	3.5	south	4.9
23:50	3.4	south-southwest	4.4